発表論文

Publication






2023

Quadrupole anomalous Hall effect in magnetically induced electron nematic state

Hiroki Koizumi, Yuichi Yamasaki, and Hideto Yanagihara

Nature Communications 14 8074 (2023) (7 pages)

nature.com

Evaluation of magnetic anisotropy in oriented plate-shaped strontium ferrite particles

Hirohisa Kubota, Mikio Kishimoto, and Hideto Yanagihara

Japanese Journal of Applied Physics 62 085002 (2023) (4 pages)

IOP Science

Characterization of plate-shaped strontium ferrite particles synthesized via co-precipitate and heat treatment in molten potassium bromide flux

Mikio Kishimoto, and Hideto Yanagihara

Journal of Magnetism and Magnetic Materials 579 170871 (2023) (5 pages)

Science Direct

Magnetic Relaxation of Superparamagnetic Fe Oxide Particles Studied With Mössbauer Spectroscopy

Eiji Kita, Reisho Onodera, Mikio Kishimoto, and Hideto Yanagihara

IEEE Magnetics Letters 14 6100205 (2023) (5 pages)

IEEE Xplore

Perpendicular Magnetic Anisotropy of an Ultrathin Fe Layer Grown on NiO(001)

Soki Kobayashi, Hiroki Koizumi, Hideto Yanagihara, Jun Okabayashi, Takahiro Kondo, Takahide Kubota, Koki Takanashi, and Yoshiaki Sonobe

Physical Review Applied 19 064005 (2023) (8 pages)

Physical Review Applied

Magnetic and electric properties of spinel oxide CoV2O4 (001) films

Atsushi Hidaka, Hiroki Koizumi, and Hideto Yanagihara

Japanese Journal of Applied Physics 62 053001 (2023) (5 pages)

IOP Science

Fabrication of L10-ordered FeNi films by denitriding FeNiN(001) and FeNiN(110) films

Keita Ito, Takumi Ichimura, Masahiro Hayashida, Takahiro Nishio, Sho Goto, Hiroaki Kura, Ryusei Sasaki, Masahito Tsujikawa, Masafumi Shirai, Tomoyuki Koganezawa, Masaki Mizuguchi, Yusuke Shimada, Toyohiko J. Konno, Hideto Yanagihara, and Koki Takanashi

Journal of Alloys and Compounds 946 169450 (2023) (10 pages)

Science Direct

Crystal Structure and Magnetic Properties of Hexagonal FeCo Nitrides Prepared Using Ammonia Gas Nitrification

Chihiro Kodaka, Mikio Kishimoto, Eiji Kita, and Hideto Yanagihara

IEEE Magnetics Letters 14 2500105 (2023) (5 pages)

IEEE Xplore




2022

Effect of static magnetic field bias on dynamic hysteresis loops of a magnetic nanoparticle suspension

Reisho Onodera, Eiji Kita, Takuya Kuroiwa, and Hideto Yanagihara

Japanese Journal of Applied Physics 61 065003 (2022) (7 pages)

IOP Science

Structure and magnetic properties of nitrides in FeNi and FeNiCo alloy particles synthesized via co-precipitation, reduction, and nitriding

Mikio Kishimoto, Eiji Kita, and Hideto Yanagihara

Journal of Magnetism and Magnetic Materials 548 168970 (2022) (7 pages)

Science Direct

Origin of perpendicular magnetic anisotropy in CoxFe3-xO4+δ thin films studied by x-ray magnetic circular and linear dichroisms

Jun Okabayashi, Masaaki A. Tanaka, Masaya Morishita, Hideto Yanagihara, and Ko Mibu

Physical Review B 105 134416 (2022) (8 pages)

Physical Review B

Magnetoelastic constant of thin films determined by a four-point bending apparatus

Shintaro Yoshihara, Hideto Yanagihara

Japanese Journal of Applied Physics 61 036502 (2022) (5 pages)

IOP Science

Effects of local lattice deformation on magnetic anisotropy of W-type ferrites

Jun-ichiro Inoue, Hiroki Koizumi, Hiroyuki Nakamura, and Hideto Yanagihara

Journal of Magnetism and Magnetic Materials 551 169112 (2022) (7 pages)

Science Direct

Process gas dependence of the spin Peltier effect in Pt/Fe3>O4 hybrid structures

Takuma Itoh, Asuka Miura, Ken-ichi Uchida, and Hideto Yanagihara

Applied Physics Express 15 013004 (2022) (5 pages)

IOP Science




2021

Strain Engineering of Magnetic Anisotropy in Epitaxial Films of Cobalt Ferrite

Hiroshige Onoda, Hiroaki Sukegawa, Jun-ichiro Inoue, and Hideto Yanagihara

Advanced Materials Interfaces 8 2101034 (2021) (6 pages)

Wiley Online Library

Spin reorientation in tetragonally distorted spinel oxide NiCo2O4 epitaxial films

Hiroki Koizumi, Ikumi Suzuki, Daisuke Kan, Jun-ichiro Inoue, Yusuke Wakabayashi, Yuichi Shimakawa, and Hideto Yanagihara

Physical Review B 104 014422 (2021) (6 pages)

Physical Review B

Synthesis and magnetic properties of tetragonally ordered Fe2Ni2N alloy using topotactic nitriding reaction

Sho Goto, Hiroaki Kura, Masahito Tsujikawa, Masafumi Shirai, Keita Ito, Takashi Suemasu, Koki Takanashide, and Hideto Yanagihara

Journal of Alloys and Compounds 885 161122 (2021) (5 pages)

Science Direct

Fabrication of L10-FeNi films with island structures by nitrogen insertion and topotactic extraction for improved coercivity

Takahiro Nishio, Hiroaki Kura, Keita Ito, Koki Takanashi, and Hideto Yanagihara

APL Materials 9 091108 (2021) (9 pages)

APL Materials

Topotactic crystal structure transformation from spinel ferrite to wüstite in epitaxial Fe3O4 films via Kr ion irradiation

Yang Liu, Yuki Hisamatsu, Sonia Sharmin, Daiki Oshima, Satoshi Iwata, Takeshi Kato, Daiichiro Sekiba, Eiji Kita, and Hideto Yanagihara

Journal of Vacuum Science & Technology A 39 0033403 (2021) (6 pages)

Journal of Vacuum Science & Technology A

Atomic Structure and Electron Magnetic Circular Dichroism of Individual Rock Salt Structure Antiphase Boundaries in Spinel Ferrites

Zhuo Li, Jinlian Lu, Lei Jin, Ján Rusz, Vancho Kocevski, Hideto Yanagihara, Eiji Kita, Joachim Mayer, Rafal E. Dunin‐Borkowski, Hongjun Xiang and Xiaoyan Zhong

Advanced Functional Materials 31 2008306 (2021) (10 pages)

Wiley Online Library

Anomalous Nernst and Seebeck Effects in NiCo2O4 Films

H. Koizumi, A. Hidaka, T. Komine and H. Yanagihara

Journal of the Magnetics Society of Japan 45 37 (2021) (4 pages)

J-STAGE

Coercivity analysis of cubic and tetragonal (Cu,Co) ferrite particles within the global model

Hawa Latiff, Gabriel Gomez Eslava, Thibaut Devillers, Hideto Yanagihara, Nora M Dempsey and Dominique Givord

Journal of Physics D: Applied Physics 54 224001 (2021) (9 pages)

IOP Science




2020

Epitaxial L10-FeNi films with high degree of order and large uniaxial magnetic anisotropy fabricated by denitriding FeNiN films

Keita Ito, Masahiro Hayashida, Hiroto Masuda, Takahiro Nishio, Sho Goto, Hiroaki Kura, Tomoyuki Koganezawa, Masaki Mizuguchi, Yusuke Shimada, Toyohiko J. Konno, Hideto Yanagihara, and Koki Takanashi

Applied Physics Letters 116 (2020) 242404 (6 pages)

Applied Physics Letters

Effect of etching on spin canting in hydrothermally synthesized Co-Ni ferrite particles

Sonia Sharmin, Jun-ichiro Inoue, and Hideto Yanagihara

Hyperfine Interactions 241 7 (2020) (7 pages)

Hyperfine Interactions

Dynamic Hysteresis Measurement of Magnetic Nanoparticle Suspensions in Parallel and Perpendicular DC Magnetic Fields

Reisho Onodera, Eiji Kita, Mikio Kishimoto, Takuya Kuroiwa and Hideto Yanagihara

IEEE Transactions on Magnetics 57 6100605 (2021) (5 pages)

IEEE Xplore

Magnetic anisotropy of Y-type ferrites: Role of the local lattice structure

Jun-ichiro Inoue, Hiroki Koizumi, Hiroyuki Nakamura and Hideto Yanagihara

Journal of Physics D: Applied Physics 53 455001 (2020) (9 pages)

IOP Science

Coercive force of Co–Ni–Li spinel ferrite particles synthesized through co-precipitation, hydrothermal treatment, and etching in hydrochloric acid

Mikio Kishimoto, Eiji Kita and Hideto Yanagihara

Japanese Journal of Applied Physics 59 085002 (2020) (4 pages)

IOP Science

Synthesis of L12-FeNi Nanoparticles by Nitrogen Insertion and Topotactic Extraction Method

S. Goto, H. Kura, and H. Yanagihara

Journal of the Magnetics Society of Japan 44 75 (2020) (4 pages)

J-STAGE

Effect of lattice mismatch on magnetic properties of acicular spinel iron oxide particles with crystallized cobalt ferrite layer

Mikio Kishimoto, Eiji Kita, and Hideto Yanagihara

Journal of Magnetism and Magnetic Materials 510 166932 (2020) (6 pages)

Science Direct

Uniaxial magnetic anisotropy of transition metal oxides: role of local lattice deformation

Junichiro Inoue, Hiroshige Onoda, and Hideto Yanagihara

Journal of Physics D: Applied Physics 53 195003 (2020) (10 pages)

IOP science

Study of induced magnetic anisotropy by lattice distortion in cobalt ferrite thin film grown on (Mg,Sn)3O4 buffer layers

Hiroshige Onoda, Hiroaki Sukegawa, and Hideto Yanagihara

IEEE Transactions on Magnetics 56 6701904 (2020) (4 pages)

IEEE Xplore

Magnetic properties of tetragonal cobalt manganese ferrite particles prepared using the molten salt method

Sota Yamada, Ryo Shigesawa, Hawa Latiff, Mikio Kishimoto, Eiji Kita, and Hideto Yanagihara

IEEE Transactions on Magnetics 56 6702618 (2020) (4 pages)

IEEE Xplore

Interlayer exchange coupling and interface magnetic anisotropy with crossed in-plane and perpendicular magnetic anisotropies

Hiroki Koizumi, Michio Hagihara, Soki Kobayashi, and Hideto Yanagihara

AIP Advances 10 015108 (2020) (4 pages)

AIP Advances




2019

Magnetic anisotropy and orbital angular momentum in the orbital ferrimagnet CoMnO3

Hiroki Koizumi, Inoue Jun-ichiro, and Hideto Yanagihara

Physical Review B 100 224425 (2019) (5 pages)

Physical Review B

Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles

Hawa Latiff, Mikio Kishimoto, Jun-ichiro Inoue, Eiji Kita, Hideto Yanagihara, and Thibaut Devillers

Journal of Magnetism and Magnetic Materials 489 (2019) 165380 (5 pages)

Science Direct

Positive Weiss Temperature in Layered Antiferromagnetic FeNiN for High-Performance Permanent Magnets

Sho Goto, Hiroaki Kura, Hideto Yanagihara, Eiji Kita, Masahito Tsujikawa, Ryusei Sasaki, Masafumi Shirai, Yasuhiro Kobayashi, Takashi Honda, and Kanta Ono

ACS Applied Nano Materials 2 (2019) 6909-6917 (9 pages)

ACS Applied Nano Materials

Fabrication of L10-FeNi films by denitriding FeNiN films

K. Ito and M. Hayashida and M. Mizuguchi and T. Suemasu and H. Yanagihara and K. Takanashi

Journal of the Magnetics Society of Japan 43 (2019) 79-83 (9 pages)

Journal of the Magnetics Society of Japan

Large negative uniaxial magnetic anisotropy in highly distorted Co-ferrite thin films

T. Tainosho, J. Inoue, S. Sharmin, M. Takeguchi, E. Kita, and H. Yanagihara

Applied Physics Letters 114 (2019) 092408 (6 pages)

Applied Physics Letters

Structure and Magnetic Properties of Co–Ni Spinel Ferrite Particles Synthesized via Co-Precipitation and Hydrothermal Treatment at Different Temperatures

Mikio Kishimoto, Hawa Latiff, Eiji Kita, Hideto Yanagihara

MATERIALS TRANSACTIONS 60 (2019) pp.485-489 (6 pages)

J STAGE

Experimental evidence of orbital ferrimagnetism in CoMnO3(0001) epitaxial thin film

Hiroki Koizumi, Sonia Sharmin, Kenta Amemiya, Masako Suzuki-Sakamaki, Jun-ichiro Inoue, and Hideto Yanagihara

Phys. Rev. Materials 3 (2019) 024404 (6 pages)

Physical Review Materials

Improvements of surface morphology and electrical transport properties of single-crystalline In2O3(111) thin films by postgrowth annealing

Yuichi Fujita, Yasufumi Matsuzaki, Shintaro Kon, Yukiko Yasukawa, Hiroki Koizumi, Hideto Yanagihara, and Hidekazu Saito

Jpn. J. Appl. Phys. 58 (2018) 030909 (4 pages)

IOP science

Morphology and magnetic properties of FeCo particles synthesized with different compositions of Co and Fe through co-precipitation, flux treatment, and reduction

M. Kishimoto, H. Latiff, E. Kita, and H. Yanagihara

Journal of Magnetism and Magnetic Materials 476 (2018) 229-233 (5 pages)

Science Direct




2018

Control of Magnetic Anisotropy by Lattice Distortion in Cobalt Ferrite Thin Film

H. Onoda, H. Sukegawa, E. Kita, and H. Yanagihara

IEEE TRANSACTIONS ON MAGNETICS 54 (2018) 2502104 (7 pages)

IEEE Xplore

Effect of Synthesis Method on Particle Size and Magnetic and Structural Properties of Co–Ni Ferrites

S. Sharmin, E. Kita, M. Kishimoto, H. Latiff and H. Yanagihara

IEEE TRANSACTIONS ON MAGNETICS 54 (2018) 6001104 (7 pages)

IEEE Xplore

RHEED oscillations in spinel ferrite epitaxial films grown by conventional planar magnetron sputtering

T. Ojima, T. Tainosho, S. Sharmin, and H. Yanagihara

AIP Advances 045106 (2018) 045106 (7 pages)

AIP Advance

Magnetic properties and electronic state of MoxFe3-xO4 ferrites

Y. Hisamatsu, S. Honda, S Sharmin, J. Inoue, E. Kita, and H Yanagihara

Materials Research Express 5 (2018) 086103

IOP science

Magnetic Properties of Epitaxial Barium Hexaferrite (0001) Thin Films Deposited by Radio Frequency Magnetron Sputtering

R. Patel and Y. Ikeda and H. Onoda and T. Tainosho and Y. Hisamatsu and S. Sharmin and E. Kita and H. Yanagihara

IEEE Transactions on Magnetics 54 (2018) 2100304 (4 pages)

IEEE Xplore




2017

Magnetic circular dichroism of X-ray spectroscopy for spinel-type ferrites in hard X-ray region: X-ray absorption, X-ray emission, and X-ray photoemission, Journal Of Electron Spectroscopy and Related Phenomena

N. Kawamura, E. Ikenaga, M. Mizumaki, N. Hiraoka, H. Yanagihara, H. Maruyama

Journal of Electron Spectroscopy and Related Phenomena 220 (2017) pp.81-85 (5 pages)

ScienceDirect

Synthesis of single-phase L10-FeNi magnet powder by nitrogen insertion and topotactic extraction

Sho Goto, Hiroaki Kura, Eiji Watanabe, Yasushi Hayashi, Hideto Yanagihara, Yusuke Shimada, Masaki Mizuguchi, Koki Takanashi, Eiji Kita

Scientific Reports 7 (2017) 13216 (7 pages)

nature.com

Magnetic Properties of Epitaxial Barium Hexaferrite (0001) Thin Films Deposited by Radio Frequency Magnetron Sputtering

R. Patel, Y. Ikeda, H. Onoda, T. Tainosho, Y. Hisamatsu, S. Sharmin, E. Kita, H. Yanagihara

IEEE Trans. Magn. 53 (2017) 2100304 (4 pages)

IEEE Xplore

Large Negative Uniaxial Magnetic Anisotropy in Epitaxially Strained Nickel Ferrite Films

Mitsuharu Matsumoto, Sonia Sharmin, Jun-ichiro Inoue, Eiji Kita, Hideto Yanagihara

IEEE Trans. Magn. 53 (2017) 2503604 (4 pages)

IEEE Xplore

Enhanced Anisotropy in Tetragonalized (Cu,Co)Fe2O4 Particles via the Jahn-Teller Effect of Cu2+ Ions

Hawa Latiff, Mikio Kishimoto, Sonia Sharmin, Eiji Kita, Hideto Yanagihara, Takashi Nakagawa

IEEE Trans. Magn. 53 (2017) 9402304 (4 pages)

IEEE Xplore

Dynamic Magnetization Properties of Platelet Ferromagnetic Nanoparticles and Their Heat Generation Injected in Tumors of Mice

Eiji Kita, Hideto Yanagihara, Mikio Kishimoto, Kouji Ota, Ryoichi Miyamoto, Tatsuya Oda, Nobuhiro Ohkohchi

IEEE Trans. Magn. 53 (2017) 5100905 (4 pages)

IEEE Xplore

Characterization of FeCo particles synthesized via co-precipitation, particle growth using flux treatment and reduction in hydrogen gas

Mikio Kishimoto, Hawa Latiff, Eiji Kita, Hideto Yanagihara

J. Magn. Magn. Mater. 432 (2017) 404-409 (6 pages)

ScienceDirect

Magnetic anisotropy in spherical Fe16N2 core-shell nanoparticles determined by torque measurements

Eiji Kita, Kenichi Shibata, Yuji Sasaki, Mikio Kishimoto, Hideto Yanagihara

AIP Advances 7 (2017) 056212 (5 pages)

AIP Advances

Spin Hall magnetoresistance at the interface between platinum and cobalt ferrite thin films with large magnetic anisotropy

Takeshi Tainosho, Tomohiko Niizeki, Jun-ichiro Inoue, Sonia Sharmin, Eiji Kita, Hideto Yanagihara

AIP Advances 7 (2017) 055936 (5 pages)

AIP Advances

Effect of lattice strain on cobalt ferrite Co0.75Fe2.25O4(111) thin films

Ritesh Patel, Takeshi Tainosho, Yuki Hisamatsu, Sonia Sharmin, Eiji Kita, Hideto Yanagihara

Jpn. J. Appl. Phys. 56 (2017) 053011 (5 pages)

IOPscience




2016

Effect of Copper Substitution on Fe3O4 Particles Prepared via Coprecipitation and Flux Methods

Hawa Latiff, Mikio Kishimoto, Sonia Sharmin, Eiji Kita, Hideto Yanagihara

IEEE Trans. Magn. 53 (2016) 9400104 (4 pages)

IEEE Xplore

Large-scale micromagnetics simulations with dipolar interaction using all-to-all communications

Hiroshi Tsukahara, S.-J. Lee, Kaoru Iwano, Nobuhito Inami, Tadashi Ishikawa, Chiharu Mitsumata, Hideto Yanagihara, Eiji Kita, Kanta Ono

AIP Advances 6 (2016) 056405 (4 pages)

AIP Advances

Cetuximab delivery and antitumor effects are enhanced by mild hyperthermia in a xenograft mouse model of pancreatic cancer.

Miyamoto R, Oda T, Hashimoto S, Kurokawa T, Inagaki Y, Shimomura O, Ohara Y, Yamada K, Akashi Y, Enomoto T, Kishimoto M, Yanagihara H, Kita E, Ohkohchi N

Cancer Sci. 107 (2016) 514-20 (7 pages)

Wiley Online Library

Magnetic fluid with high dispersion and heating performance using nano-sized Fe3O4 platelets

Mikio Kishimoto, Ryoichi Miyamoto, Tatsuya Oda, Hideto Yanagihara, Nobuhiro Ohkohchi, Eiji Kita

J. Magn. Magn. Mater. 398 (2016) 200-204 (5 pages)

ScienceDirect

Magnetic Properties of Spinel Ferrite Thin Films Grown by Reactive Sputtering

Hideto Yanagihara, Sonia Sharmin, Tomohiko Niizeki, Eiji Kita

Materials Transactions 57 (2016) 777-780 (4 pages)

J-STAGE




2015

Effect of Reaction Temperature on Particle Size of Iron Oxide Nanoparticles via Heating of Platelet α-FeOOH in Tetraethylene Glycol

H. Latiff, A. Horiuchi, M. Kishimoto, H. Yanagihara, E. Kita

IEEE Trans. Magn. 51 (2015) 5400304 (4 pages)

IEEE Xplore

Epitaxial growth of Co0.75Fe2.25O4/NiO bilayer on MgO(001) substrate

Y. Hisamatsu, M. Oka,T. Tainosho, H. Yanagihara, E. Kita

IEEE Trans. Magn. 51 (2015) 2103503 (4 pages)

IEEE Xplore

Magnetic properties of cobalt ferrite (001) films grown on spinel-type buffer layers

Y. Hisamatsu,T. Niizeki, H. Yanagihara, E. Kita

IEEE Trans. Magn. 51 (2015) 2104504 (4 pages)

IEEE Xplore

Antiferromagnetic coupling and impurity effects at junctions between Fe3O4 and Fe(001) layers

H. Yanagihara, H. Kamita, S. Honda, J. Inoue, Eiji Kita, H. Itoh, Ko Mibu

Phys. Rev. B 91 (2015) 174423 (6 pages)

Physical Review B

Mössbauer study on epitaxial CoxFe4-xN films grown by molecular beam epitaxy

Keita Ito, Tatsunori Sanai, Yoko Yasutomi, Toshiki Gushi, Kaoru Toko, Hideto Yanagihara, Masakiyo Tsunoda, Eiji Kita, Takashi Suemasu

J. Appl. Phys. 117 (2015) 17B717 (4 pages)

Journal of Applied Physics

Inter-grain interaction in random magnetic anisotropy simulation in magnetic nanocrystals

S.-J. Lee, Nobuhito Inami, Hideto Yanagihara, Eiji Kita, Chiharu Mitsumata, Kanta Ono

J. Appl. Phys. 117 (2015) 17A325 (4 pages)

Journal of Applied Physics

Reconstruction of magnetic domain structure using the reverse Monte Carlo method with an extended Fourier image

Maki Tokii, Eiji Kita, Chiharu Mitsumata, Kanta Ono, Hideto Yanagihara, Makoto Matsumoto

J. Appl. Phys. 117 (2015) 17D149 (4 pages)

Journal of Applied Physics




2014

Fe ion distribution and superconductivity of FeSr2RECu2O6+y (RE = Eu, Er, Gd, Nd and Y)

Yoshiaki Hata, Kazuhiro Yamaugchi, Kazuki Kinoshita, Eiji Kita, Takashi Mochiku, Hiroshi Yasuoka

Physica C 507 (2014) 85-89 (5 pages)

ScienceDirect

Measurement of Intravenously Administered γ-Fe2O3 Particle Amount in Mice Tissues Using Vibrating Sample Magnetometer

M. Kishimoto, R. Miyamoto, T. Oda, Y. Ohara, H. Yanagihara, N. Ohkohchi, E. Kita

IEEE Trans. Nanobioscience 13 (2014) 425-430 (6 pages)

IEEE Xplore

Magnetic and Electrical Properties of Epitaxial NiFe2O4 (001) Films Fabricated by Reactive Sputtering

J. Morishita, T. Niizeki, K.Z. Suzuki, H. Yanagihara, E. Kita

IEEE Trans. Magn. 50 (2014) 2303904 (4 pages)

IEEE Xplore

In-Plane Uniaxial Anisotropy of Cobalt Ferrite Films Epitaxially Grown on MgAl2O4 (110)

H. Yanagihara, M. Oka, Y. Utsumi, T. Niizeki, K.Z. Suzuki, J.-I. Inoue, E. Kita

IEEE Trans. Magn. 50 (2014) 2102904 (4 pages)

IEEE Xplore

Perpendicular magnetic anisotropy in epitaxially strained cobalt-ferrite (001) thin films

H. Yanagihara, Y. Utsumi, T. Niizeki1, J. Inoue, Eiji Kita

J. Appl. Phys. 115 (2014) 17A719 (3 pages)

Journal of Applied Physics

Magnetization control for bit pattern formation of spinel ferromagnetic oxides by Kr ion implantation

Eiji Kita, Kazuya Z. Suzuki, Yang Liu, Yuji Utsumi, Jumpei Morishita, Daiki Oshima, Takeshi Kato, Tomohiko Niizeki, Ko Mibu, Hideto Yanagihara

J. Appl. Phys. 115 (2014) 17B907 (3 pages)

Journal of Applied Physics

Characterization of Spinel-Structured Iron Oxide Nanoparticles Synthesized by Heating of α-FeOOH Platelets in Tetra-Ethylene Glycol

Hawa Latiff, Mikio Kishimoto, Akari Horiuchi, Atsushi Seki, Ryoichi Miyamoto, Hideto Yanagihara, Tatsuya Oda, Nobuhiro Ohkohchi, Eiji Kita

Materials Transactions 55 (2014) 813-817 (5 pages)

J-STAGE

Electron theory of perpendicular magnetic anisotropy of Co-ferrite thin films

Jun-ichiro Inoue, Tomohiko Niizeki, Hideto Yanagihara, Hiroyoshi Itoh, Eiji Kita

AIP Advances 4 (2014) 027111 (7 pages)

AIP Advances

Control of magnetization in spinel-type Fe3O4 thin films by N2 ion implantation

Eiji Kita, Kazunaga Ono, Noboru Yamaguchi, Tsutomu Nishihashi, Makoto Iura, Jumpei Morishita, Yuji Utsumi, Ko Mibu, Tomohiko Niizeki, Kazuya Z. Suzuki, Hideto Yanagihara

J. Appl. Phys. 53 (2013) 020306 (3 pages)

IOPscience

Magnetic properties in oriented platelet Fe3O4 particles prepared by the polyol method using α-FeOOH as precursors

Mikio Kishimoto, Daiki Isaka, Akari Horiuchi, Hideto Yanagihara, Eiji Kita

J. Magn. Magn. Mater. 352 (2013) 13-16 (4 pages)

ScienceDirect

Three-Dimensional Large-Scale Micromagnetics Simulation Using Fast Fourier Transformation

N. Inami, Y. Takeichi, C. Mitsumata, K. Iwano, T. Ishikawa, S.-J. Lee, H. Yanagihara, E. Kita, K. Ono

IEEE Trans. Magn. 50 (2014) 1400304 (4 pages)

IEEE Xplore

Ferromagnetic Resonance in Magnetite Thin Films

M. Nagata, K. Tanabe, T. Moriyama, D. Chiba, J.-I. Ohe, M. Myoka, T. Niizeki, H. Yanagihara, E. Kita, T. Ono

IEEE Trans. Magn. 50 (2014) 1400203 (3 pages)

IEEE Xplore

Annealing Effects on Tunnel Magnetoresistance in Polyimide-Co Granular Films

K.Z. Suzuki, Y. Shibuya, T. Niizeki, H. Yanagihara, E. Kita

IEEE Trans. Magn. 50 (2014) 1500204 (4 pages)

IEEE Xplore




2013

Extraordinarily large perpendicular magnetic anisotropy in epitaxially strained cobalt-ferrite CoxFe3-xO4 (001) (x = 0.75, 1.0) thin films

Tomohiko Niizeki, Yuji Utsumi, Ryohei Aoyama, Hideto Yanagihara, Jun-ichiro Inoue, Yuichi Yamasaki, Hironori Nakao, Kazuyuki Koike, Eiji Kita

Appl. Phys. Lett. 103 (2013) 162407 (5 pages)

Applied Physics Letters

Dependences of Specific Loss Power on Magnetic Field and Frequency in Elongated Platelet γ-Fe2O3 Particles Using Hysteresis-Loss Heating

M. Kishimoto, H. Yanagihara, E. Kita

IEEE Trans. Magn. 49 (2013) 4756-4760 (5 pages)

IEEE Xplore

High-temperature phase in zirconia film fabricated by aerosol gas deposition and its change upon subsequent heat treatment

Eiji FUCHITA, Eiji TOKIZAKI, Eiichi OZAWA, Hirofumi INOUE, Yoshio SAKKA, Eiji KITA

JCS-Japan 121 (2013) 333-337 (5 pages)

J-STAGE

Studies on spintronics-related thin films using synchrotron-radiation-based Mossbauer spectroscopy

Ko Mibu, Makoto Seto, Takaya Mitsui, Yoshitaka Yoda, Ryo Masuda, Shinji Kitao, Yasuhiro Kobayashi, Edi Suharyadi, Masaaki Tanaka, Masakiyo Tsunoda, Hideto Yanagihara, Eiji Kita

Hyperfine Interactions 217 (2013) 127-135 (9 pages)

Springer Link

Magnetotransport properties in epitaxial Fe3O4(001) thin films with current perpendicular to the plane geometry

H. Yanagihara, K. Shimada, T. Niizeki, E. Kita, J. Inoue, A. Fukushima, S. Yuasa

J. Appl. Phys. 113 (2013) 17B104 (3 pages)

Journal of Applied Physics

Selective growth of Fe3O4 and γ-Fe2O3 films with reactive magnetron sputtering

H. Yanagihara, M. Myoka, D. Isaka, T. Niizeki, K. Mibu, E. Kita

J. Phys. D: Appl. Phys. 46 (2013) 175004 (5 pages)

IOPscience

Characterization of Spinel-Structured Iron Oxide Particles Synthesized by Heating α-Fe2O3 Platelets in Tetra-Ethylene Glycol

Mikio Kishimoto, Kei Asai, Akari Horiuchi, Hideto Yanagihara, Yukio Nagasaki, Eiji Kita

J. Inst. Metals 54 (2013) 222-224 (3 pages)

J-STAGE

Effect of calculation conditions on numerical simulation of magnetic materials with random magnetic anisotropy

S.-J. Lee, Suguru Sato, Tomohiko Niizeki, Hideto Yanagihara, Eiji Kita, Chiharu Mitsumata

J. KOREAN. Phys. Soc. 63 (2013) 768-772 (5 pages)

Springer Link




2012

Room temperature magnetoresistance in a polyimide-Co granular film synthesized by vapor deposition polymerization

Kazuya Z. Suzuki, Hideto Yanagihara, Tomohiko Niizeki, Ken Kojio, Eiji Kita

Appl. Phys. Lett. 101 (2012) 222401 (4 pages)

Applied Physics Letters

Morphology and Magnetic Properties of Platelet γ-Fe2O3 Particles

Mikio Kishimoto, Tatsuya Oda, Yusuke Ohara, Ryoichi Miyamoto, Yoshimasa Akashi, Hideto Yanagihara, Nobuhiro Ohkochi, Eiji Kita

Mater. Trans. 53 (2012) 1711-1715 (5 pages)

J-STAGE

Synthesis and magnetic properties of platelet γ-Fe2O3 particles for medical applications using hysteresis-loss heating

Mikio Kishimoto, Makoto Minagawa, Hideto Yanagihara, Tatsuya Oda, Nobuhiro Ohkochi, Eiji Kita

J. Magn. Magn. Mater. 324 (2012) 1285-1289 (5 pages)

ScienceDirect

Mössbauer study on the antiferromagnetic FeO synthesized under high pressure

Takuro Yoshikawa, Yasushi Kanke, Hideto Yanagihara, Eiji Kita, Yorihiko Tsunoda, Kiiti Siratori, Kay Kohn

ICAME 2011 205 (2012) 135-138 (4 pages)

Springer Link

Effects of impurity states on exchange coupling in Fe/Fe3O4 junctions

J. Inoue, S. Honda, H. Itoh, K. Mibu, H. Yanagihara, E. Kita

Phys. Rev. B 85 (2012) 184431 (8 pages)

Physical Review B

Fe3O4/Fe(001)界面における反平行交換結合

柳原 英人, 喜多 英治, 本多 周太, 壬生 攻, 伊藤 博介, 井上 順一郎

Magnetics Jpn. 7 (2012) 101-107 (7 pages)

The Magnetics Society of Japan

Antiparallel Exchange Coupling at Interface of Fe3O4/Fe(001)

H. Yanagihara, E. Kita, S. Honda, K. Mibu, H. Itoh, J. Inoue

Magnetics Jpn. 7 (2012) 101-107 (7 pages) (in Japanese)

The Magnetics Society of Japan

Synthesis and magnetic properties of platelet γ-Fe2O3 particles for medical applications using hysteresis-loss heating

Mikio Kishimoto, Makoto Minagawa, Hideto Yanagihara, Tatsuya Oda, Nobuhiro Ohkochi, Eiji Kita

J. Magn. Magn. Mater. 324 (2012) 1285-1289 (5 pages)

ScienceDirect




2011

Electronic and magnetic structure at the Fe/Fe3O4 interface

T. Kida, S. Honda, H. Itoh, J. Inoue, H. Yanagihara, E. Kita, K. Mibu

Phys. Rev. B 84 (2011) 104407 (10 pages)

Physical Review B

Preparation of highly dispersible and tumor-accumulative, iron oxide nanoparticles: Multi-point anchoring of PEG-b-poly(4-vinylbenzylphosphonate) improves performance significantly

Kodai Ujiie, Naoki Kanayama, Kei Asai, Mikio Kishimoto, Yusuke Ohara, Yoshimasa Akashi, Keiichi Yamada, Shinji Hashimoto, Tatsuya Oda, Nobuhiro Ohkohchi, Hideto Yanagihara, Eiji Kita, Masayuki Yamaguchi, Hirofumi Fujii, Yukio Nagasaki

Colloids Surf., B 88 (2011) 771-778 (8 pages)

ScienceDirect

Random magnetic anisotropy in isotropic nanocrystalline composite permanent magnets

Suguru Sato, S. J. Lee, Chiharu Mitsumata, Hideto Yanagihara, Eiji Kita

J. Appl. Phys. 109 (2011) 083904 (4 pages)

Journal of Applied Physics

Perpendicular magnetic anisotropy in CoFe2O4(001) films epitaxially grown on MgO(001)

H. Yanagihara, K. Uwabo, M. Minagawa, Eiji Kita, Noriyuki Hirota

J. Appl. Phys. 109 (2011) 07C122 (3 pages)

Journal of Applied Physics

Antiferromagnetic coupling between spinel ferrite and α-Fe layers in Fe3-δO4/MgO/Fe(0 0 1) epitaxial films

Hideto Yanagihara, Yuta Toyoda, Eiji Kita

J. Phys. D: Appl. Phys. 44 (2011) 064011 (6 pages)

IOPscience

Numerical simulation of random magnetic anisotropy with solid magnetization grains

S.-J. Lee, S. Sato, H. Yanagihara, E. Kita, C. Mitsumata

J. Magn. Magn. Mater. 323 (2011) 28 (4 pages)

ScienceDirect




2010

Synthesis of ε-FexN (2≤x≤3) Submicron Particles and the Diffusion Mechanism of Nitrogen Atoms

Makoto Minagawa, Hideto Yanagihara, Mikio Kishimoto, Eiji Kita

Mater. Trans. 51 (2010) 2173-2176 (4 pages)

J-STAGE

The structural phase transition in SrV6O11

Y. Hata, Y. Kanke, E. Kita

Acta Cryst. C66 (2010) i99-i102 (4 pages)

Acta Crystallographica Section C

Ferromagnetic nanoparticles for magnetic hyperthermia and thermoablation therapy

Eiji Kita, Tatsuya Oda, Takeru Kayano, Suguru Sato, Makoto Minagawa, Hideto Yanagihara, Mikio Kishimoto, Chiharu Mitsumata, Shinji Hashimoto, Keiichi Yamada, Nobuhiro Ohkohchi

J. Phys. D: Appl. Phys. 43 (2010) 474011 (9 pages)

IOPscience

Composition Shift as a Function of Thickness in Fe3-δO4(001) Epitaxial Films

Makoto Minagawa, Hideto Yanagihara, Kazuyuki Uwabo, Eiji Kita, Ko Mibu

Jpn. J. Appl. Phys. 49 (2010) 080216 (3 pages)

IOPscience

癌焼灼治療を目的としたCo添加Fe3O4粒子分散体の交流磁場印加による昇温特性の評価

榧野 尊, 北島 沙織, 岸本 幹雄, 柳原 英人, 橋本 真治, 山田 圭一, 小田 竜也, 喜多 英治

J. Magn. Soc. Jpn. 34 (2010) 459-462 (4 pages)

J-STAGE

Evaluation of the Temperature Increase Property of a Dispersant of Co-containing Fe3O4 Particles Used for Magnetic Thermoablation

T. Kayano, S. Kitajima, M. Kishimoto, H. Yanagihara, S. Hashimoto, K. Yamada, T. Oda, E. Kita

J. Magn. Soc. Jpn. 34 (2010) 459-462 (4 pages) (in Japanese)

J-STAGE

磁気ヒステリシス損失による発熱を利用した癌焼灼治療のためのCo添加Fe3O4粒子の合成

北島 紗織, 榧野 尊, 岸本 幹雄, 柳原 英人, 喜多 英治

J. Magn. Soc. Jpn. 34 (2010) 436-439 (4 pages)

J-STAGE

Synthesis of Co-Containing Fe3O4 Particles for Magnetic Themoablation

S. Kitajima, T. Kayano, M. Kishimoto, H. Yanagihara, E. Kita

J. Magn. Soc. Jpn. 34 (2010) 436-439 (4 pages) (in Japanese)

J-STAGE

Heating characteristics of ferromagnetic iron oxide nanoparticles for magnetic hyperthermia

Eiji Kita, Shinji Hashimoto, Takeru Kayano, Makoto Minagawa, Hideto Yanagihara, Mikio Kishimoto, Keiichi Yamada, Tatsuya Oda, Nobuhiro Ohkohchi, Toshiyuki Takagi, Toshiyuki Kanamori, Yoshio Ikehata, Isamu Nagano

J. Appl. Phys. 107 (2010) 09B321 (3 pages)

Journal of Applied Physics

Magnetic anisotropy in Fe nanocrystals fabricated by GDM

E Kita, H Sato, N Tsukahara, S J Lee, H Yanagihara, H Tanimoto

J. Phys.: Conf. Ser. 200 (2010) 072051 (4 pages)

IOPscience

Minimally required heat doses for various tumour sizes in induction heating cancer therapy determined by computer simulation using experimental data

K. Yamada, T. Oda, S. Hashimoto, T. Enomoto, N. Ohkohchi, H. Ikeda, H. Yanagihara, M. Kishimoto, E. Kita, A. Tasaki, M. Satake, Y. Ikehata, H. Nagae, I. Nagano, T. Takagi, T. Kanamori

Int. J. hyperther. 26 (2010) 465-474 (10 pages)

Informa Healthcare




2009

Site Preference of Fe Ion in SrV6-xFexO11

Yoshiaki Hata, Yasushi Kanke, Kenji Ohoyama, Eiji Kita

J. Phys. Soc. Jpn. 78 (2009) 054703 (4 pages)

Journal of the Physical Society of Japan

The measurement of small magnetic signals from magnetic nanoparticles attached to the cell surface and surrounding living cells using a general-purpose SQUID magnetometer

S Hashimoto, T Oda, K Yamada, M Takagi, T Enomoto, N Ohkohchi, T Takagi, T Kanamori, H Ikeda, H Yanagihara, E Kita, A Tasaki

Phys. Med. Biol. 54 (2009) 2571-2583 (13 pages)

IOPscience

Strong molecular field effect from Gd on 3d-electronic states of Cu in concentrated Gd-Cu non-crystalline alloys

K Yano, J Fukuoka, S Yamada, H Sakurai, S Okada, H Adachi, H Kawata, E Kita, I Nakai

J. Phys.: Conf. Ser. 150 (2009) 042239 (4 pages)

IOPscience




2008

Antiferromagnetic Coupling at the Interface between Fe and Fe3O4(001) Epitaxial Films

Hideto Yanagihara, Yuta Toyoda, Akihiro Ohnishi, Eiji Kita

Appl. Phys. Express 1 (2008) 111303 (3 pages)

IOPscience

Hysteresis Power-Loss Heating of Ferromagnetic Nanoparticles Designed for Magnetic Thermoablation

E. Kita, H. Yanagihara, S. Hashimoto, K. Yamada, T. Oda, M. Kishimoto, A. Tasaki

IEEE Trans. Magn. 44 (2008) 4452-4455 (4 pages)

IEEE Xplore

Preparation of Conducting Polymers by Electrochemical Methods and Demonstration of a Polymer Battery

Hiromasa Goto, Hiroyuki Yoneyama, Fumihiro Togashi, Reina Ohta, Akitsu Tsujimoto, Eiji Kita, Ken-ichi Ohshima

J. Chem. Educ. 85 (2008) 1067-1070 (4 pages)

ACS Publications

Optically spin oriented electron transmission across fully epitaxial Fe3O4/GaAs(001) interfaces

T. Taniyama, T. Mori, K. Watanabe, E. Wada, M. Itoh, H. Yanagihara

J. Appl. Phys. 103 (2008) 07D705

Journal of Applied Physics

純オゾンを用いて作製したγ-Fe2O3エピタキシャル薄膜の構造と磁気特性

柳原 英人, 若林 裕助

Magnetics Jpn. 3 (2008) 180-186 (7 pages)

CiNii

Structure and Magnetic Properties of γ-Fe2O3 Epitaxial Thin Films Grown by Pure-Ozone-Assisted MBE Technique

H. Yanagihara, Y. Wakabayashi

Magnetics Jpn. 3 (2008) 180-186 (7 pages) (in Japanese)

CiNii




2007

Effect of uniaxial stress cooling on the neutron magnetic scattering in a ZnCr2O4 single crystal

Eiji Kita, Ayumu Hatanaka, Hideto Yanagihara, Kenji Nakajima, Isao Kagomiya, Masakazu Nishi, Kazuhisa Kakurai, Kiiti Siratori, Kay Kohn

J. Phys. Chem. Solid. 68 (2007) 2166-2169 (4 pages)

ScienceDirect

Fabrication of Magnetic Tunneling Junctions with NaCl Barriers

Makoto Nakazumi, Daichi Yoshioka, Hideto Yanagihara, Eiji Kita, Tamotsu Koyano

Jpn. J. Appl. Phys. 46 (2007) 6618-6620 (3 pages)

IOPscience

Dipole-induced magnetic anisotropy in γ-Fe2O3(001) epitaxial films

H. Yanagihara, J. Hagiwara, M. Nakazumi, Eiji Kita, T. Furubayashi

Appl. Phys. Lett. 91 (2007) 072508 (3 pages)

Applied Physics Letters

On the Magnetic Symmetry of the Low Temperature Phase of ZnCr2O4

Isao Kagomiya, Yoshiaki Hata, Daisuke Eto, Hideto Yanagihara, Eiji Kita, Kenji Nakajima, Kazuhisa Kakurai, Masakazu Nishi, Kenji Ohoyama

J. Phys. Soc. Jpn. 77 (2007) 064710 (5 pages)

Journal of the Physical Society of Japan

Antiferromagnetic interlayer coupling through thin MgO layer in γ-Fe2O3/MgO/Fe(001) multilayers

H. Yanagihara, Yuta Toyoda, Eiji Kita

J. Appl. Phys. 101 (2007) 09D101 (3 pages)

Journal of Applied Physics

エピタキシャルFe3O4/MgO/Fe(001)三層膜のMgO層を介した層間結合

豊田 雄太, 柳原 英人, 喜多 英治

J. Magn. Soc. Jpn. 31 (2007) 85-88 (4 pages)

CiNii

Interlayer exchange coupling through MgO in epitaxial Fe3O4/MgO/Fe(001) trilayers

Yuta Toyoda, H. Yanagihara, Eiji Kita

J. Magn. Soc. Jpn. 31 (2007) 85-88 (4 pages) (in Japanese)

CiNii

Molecular field effect from Gd on collapse-like magnetic moment of Fe in (Fe1-xCrx)44Gd56

Kazuo Yano, Eiji Kita, Tatsuo Kamimori, Hatsuo Tange

J. Magn. Magn. Mater. 310 (2007) e534-e535 (2 pages)

ScienceDirect

Electrical and magnetic properties of γ-Fe2O3 epitaxial films

Manabu Hasegawa, H. Yanagihara, Yuta Toyoda, Eiji Kita, L. Ranno

J. Magn. Magn. Mater. 310 (2007) 2283-2285 (3 pages)

ScienceDirect

Magnetic properties of core-shell type Fe16N2 nanoparticles

Eiji Kita, K. Shibata, H. Yanagihara, Y. Sasaki, M. Kishimoto

J. Magn. Magn. Mater. 310 (2007) 2411-2413 (3 pages)

ScienceDirect




2006

Molecular field effect from Gd on collapse-like magnetic moment of Fe in (Fe1-xCrx)44Gd56

Kazuo Yano, Eiji Kita, Tatsuo Kamimori, Hatsuo Tange

J. Magn. Magn. Mater. 310 (2006) e534-e535 (2 pages)

ScienceDirect

Iron Vacancy Ordered γ-Fe2O3(001) Epitaxial Films: The Crystal Structure and Electrical Resistivity

Hideto Yanagihara, Manabu Hasegawa, Eiji Kita, Yusuke Wakabayashi, Hiroshi Sawa, Kiiti Siratori

J. Phys. Soc. Jpn. 75 (2006) 054708 (5 pages)

Journal of the Physical Society of Japan

Symmetry Breaking in a Frustrated Heisenberg Spin System, ZnCr2O4: I. Magnetic Measurements

Isao Kagomiya, Hiroyuki Suzuki, Eiji Kita, Yorihiko Tsunoda, Kay Kohn, Kiiti Siratori

J. Phys. Soc. Jpn. 75 (2006) 064709 (4 pages)

Journal of the Physical Society of Japan

Symmetry Breaking in a Frustrated Heisenberg Spin System, ZnCr2O4: II. Neutron Scattering Measurements

Yorihiko Tsunoda, Hiroyuki Suzuki, Susumu Katano, Kiiti Siratori, Eiji Kita, Kay Kohn

J. Phys. Soc. Jpn. 75 (2006) 064710 (5 pages)

Journal of the Physical Society of Japan