研究業績

2005

“30-nm Scale Fabrication of Magnetic Tunnel Junctions Using EB Assisted CVD Hard Masks”,
IEEE Transactions on Magnetics, 41, 3607-3609 (2005).
Shinji Isogami, Masakiyo Tsunoda and Migaku Takahashi

“Diffusion Analyses of Non-Ferromagnetic Element in the Cap-Layer of Post-Annealed CoCrPt Perpendicular Media”,
IEEE Transactions on Magnetics, 41, 3187-3189 (2005).
Norikazu Itagaki, Shin Saito and Migaku Takahashi

“Magnetization reversal mechanism of soft magnetic underlayer pinned by antiferromagnetic layer”,
Journal of Mangetism and Magnetic Materials, 287, 287-291 (2005).
A. Hashimoto, S. Saito and M. Takahashi

「高濃度オゾン酸化法による金属Al膜の酸化過程とそれを用いて作製した強磁性トンネル接合膜の磁気抵抗効果」,
日本応用磁気学会誌, 29 (8), 820-825 (2005).
吉村哲、成澤洋祐、角田匡清、高橋研
“High-Concentration Ozone Oxidation Process of a Metal Al Film and Tunnel Magnetoresistance Properties of Magnetic Tunnel Junctions with Ozone-Oxidized Al-O Barriers”,
J. Magn. Soc. Jpn., 29 (8), 820-825 (2005).
S. Yoshimura, Y. Narisawa, M. Tsunoda, and M. Takahashi

“Surface flattening processes of metal layer and their effect on transport properties of magnetic tunnel junctions with Al-N barrier”,
Journal of Applied Physics, 97, (10), 10C920-1-10C920-3 (2005).
S. Yoshimura, T. Nozawa, T. Shoyama, M.Tsunoda, and M. Takahashi

“Thickness dependence of exchange anisotropy of polycrystalline Mn3Ir/Co-Fe bilayers”,
Journal of Applied Physics, 97, (10), 10K106-1-10K106-3 (2005).
K.-I. Imakita, M.Tsunoda, and M. Takahashi

“Structural and magnetic properties of monolayer film of CoPt nanoparticles synthesized by polyol proess”
Journal of Applied Physics, 97, 10J301 (2005).
C. N. Chinnasamy, M. Mizuno, Y. Sasaki, D. Hasegawa, T. Ogawa, B. Jeyadevan, M. Inoue, M. Takahashi, K. Sato, S. Hisano, and K. Tohji

“Direct synthesis of Pt based L10 structured nanoparticles”
Journal of Applied Physics, 97, 10J307 (2005).
M. Takahashi, T. Ogawa, D. Hasegawa, and B. Jeyadevan

「トンネル接合膜のTMR特性に及ぼすAl-N絶縁層へのイオン照射の効果」,
日本応用磁気学会誌, 29, 653-657 (2005).
角田匡清，渡辺義彦，今北健一，吉村哲，高橋研
「種々のN濃度を有する α’ 及び γ’ -Fe-N相の合成と磁気モーメント」,
日本応用磁気学会誌, 29 (5), 553-557 (2005).
須永和晋、角田匡清、高橋研
“Synthesis and Magnetic Moment of α’ and γ’ -Fe-N Phases with Various N Contents”
J. Magn. Soc. Jpn., 29 (5), 553-557 (2005).
K. Sunaga, M. Tsunoda, and M. Takahashi

“Chemically synthesized L10 type FePt nanoparticles and nanoparticle arrays via template-assisted self-assembly”
IEEE Transactions on Magnetics, 41 No.2, 660-664 (2005).
Y. Sasaki, M. Mizuno, A. C. C. Yu, T. Miyauchi, D. Hasegawa, T. Ogawa, M. Takahashi, B. Jeyadevan K. Tohji, K. Sato and S. Hisano

“Improved thermal stability of exchange bias of Mn-Ir/Co-Fe bilayers by novel in situ thermal annealing procedure”,
J. Magn. Magn. Mat., 286, 248-252 (2005).
K. Imakita, M. Tsunoda, and M. Takahashi,

“Magnetization reversal of ferromagnetic layer in exchange coupled Mn-Ir/Co-Fe epitaxial bilayers”,
J. Magn. Magn. Mat., 286, 206-210 (2005).
T. Sato, M. Tsunoda, and M. Takahashi,

“Radical nitridation of Al films for the barrier formation in ferromagnetic tunnel junctions”,
J. Magn. Magn. Mat., 286, 162-166 (2005).
M. Tsunoda, T. Shoyama, S. Yoshimura, and M. Takahashi,

2004

“Crystallographic structure and magnetic properties of L10-type FePt nanoparticle monolayered films stabilized on functinalized surfaces”,
J. Magn. Magn. Mater., 282, 122-126 (2004).
Y. Sasaki, M. Mizuno, Andrew C. C. Yu, M. Inoue, K. Yazawa, I. Ohta, M. Takahashi, B. Jeyadevan, and K. Tohji

“Relation between exchange coupling and enhanced coercivity in the free layer of a patterned magnetic tunnel junction”,
J. Appl. Phys., 96 (12), 7399-7402 (2004).
C. G. Kim, C. -O. Kim, M.Tsunoda, M. Takahashi, and T. Stobiecki

“Local transport properties of Co-Fe/Al-O/Co-Fe tunnel junctions with high thermal stability”,
J. Magn. Magn. Mat., 284, 330-335 (2004).
T. S. Yoon, T. Shoyama, Y. W. Lee, M. Tsunoda, M. Takahashi, D. Y. Kim, and C. O. Kim,

“Giant exchange anisotropy observed in Mn-Ir/Co-Fe bilayers containing ordered Mn3Ir phase”,
Appl. Phys. Lett., 85, 3812-3814 (2004).
K.Imakita, M.Tsunoda, and M. Takahashi,

「メカニカルアロイング法によって作製した(Cr-M)O2粉末のPMR効果」,
日本応用磁気学会誌, 28 (3), 360-363 (2004).
佐藤哲也、角田匡清、張其武、バラチャンドラン・ジャヤデワン、高橋研,
“PMR Effect of (Cr-M)O2 Powder Prepared by Mechanical Alloying”,
J. Magn. Soc. Japan, 28 (3), 360-363 (2004).
T. Sato, M. Tsunoda, Q. Zhang, B. Jeyadevan, and M. Takahashi

「超高真空中加熱処理による金属薄膜の粒成長と平坦化」,
日本応用磁気学会誌, 28 (3), 368-371 (2004).
今北健一、角田匡清、高橋研,
“Enlarged Lateral Grain Size and Reduced Surface Roughness in Metallic Thin Films Obtained by Thermal Annealing under Ultra-high Vacuum”,
J. Magn. Soc. Japan, 28 (3), 368-371 (2004).
K. Imakita, M. Tsunoda, and M. Takahashi

“Magnetic distribution of the free layer on patterned MTJ multilayers”,
J. Magn. Magn. Mat., 268, 271-276 (2004).
C.G.Kim, C.-O.Kim, T.-S. Yoon, M.Tsunoda and M. Takahashi,

「下地層ならびに超高真空中加熱プロセスによるCu薄膜の面内結晶粒径の増大と表面平坦化」”,
真空, 47 (3), 124-127 (2004).
今北健一、角田匡清、高橋研,
“Lateral Grain Size Enlargement and Surface Flattening of Cu Thin Films by using Adequate Underlayers and by Thermal Annealing in Ultra High Vacuum”,
J. Vac. Soc. Jpn., 47 (3), 124-127 (2004).
K. Imakita, M. Tsunoda, and M. Takahashi

“Orientational dependence of exchange anisotropy of Mn-Ir/Co-Fe epitaxial bilayers”,
J. Appl. Phys., 95 (11), 7513-7515 (2004).
T. Sato, M.Tsunoda, and M.Takahashi,

“Correlation between structure and exchange coupling parameters of IrMn based MTJ”,
Phys. Stat. Sol. (a), 201 (8), 1621-1627 (2004).
T. Stobiecki, J. Kanak, J. Wrona, M. Czapkiewicz, C. G. Kim, C. O. Kim, M.Tsunoda, and M.Takahashi,

“Distribution of interlayer-exchange coupling on MTJ multilayer”,
Phys. Stat. Sol. (a), 201 (8), 1635-1639 (2004).
C. G. Kim, V. K. Sankaranarayanan, C. O. Kim, M.Tsunoda, and M.Takahashi

“Temperature dependence of tunnel magnetoresistance and magnetization of IrMn based MTJ”,
Phys. Stat. Sol. (a), 201 (8), 1648-1652 (2004).
P. Wi?niowski, T. Stobiecki, M. Czapkiewicz, J. Wrona, M. Rams, C. G. Kim, C. O. Kim, Y. K. Hu, M.Tsunoda, and M.Takahashi,

“Magnetization process and domains in MTJ”,
Phys. Stat. Sol.(b), 241 (7), 1477-1481 (2004).
M. Czapkiewicz, M. Zoladz, J. Wrona, P. Wi?niowski, R. Rak, T. Stobiecki, C. G. Kim, C. O. Kim, M.Takahashi, and M.Tsunoda,

“Formability and thermal stability of a’ phase in (Fe1-yCoy)-(B, C, N) films”,
Phys. Stat. Sol. (b), 241 (7), 1701-1705 (2004).
K. Sunaga, S. Kadowaki, M.Tsunoda, and M.Takahashi,

“Exchange anisotropy of polycrystalline Mn-Ir/Co-Fe bilayers enlarged by long-time annealing”,
Appl. Phys. Lett., 84, 5222-5224 (2004).
M. Tsunoda, S. Sato, T. Hashimoto and M. Takahashi,

“Correlation among exchange coupling, surface roughness and junction size in magnetic tunnel junctions”,
J. Magn. Magn. Mat., 272-276, 1965-1966 (2004).
V. K. Sankaranarayanan, Y.K. Hu, C.G.Kim, C.-O.Kim, M. Tsunoda and M. Takahashi,

“The influence of NiFe thickness of top-electrode on exchange coupling parameters of IrMn based MTJ”,
J. Magn. Magn. Mat., 272-276, e1503-e1505 (2004).
T. Stobiecki, C.G.Kim, C.-O.Kim, Y.K. Hu, M. Czapkiewicz, J. Kanak, J. Wrona, M. Tsunoda and M. Takahashi,

“Magnetotransport properties of Co-Fe/Al-N/Co-Fe tunnel junctions with large tunnel magnetoresistance ratio”,
Appl. Phys. Lett., 85, 82-84 (2004).
T. S. Yoon, C. O. Kim, T. Shoyama, M. Tsunoda, and M. Takahashi,

「Al/NiP上に作製しためっき軟磁性裏打ち層の磁気特性と単磁区化」
日本応用磁気学会誌, 28, (3), 289-294 (2004).
齊藤　伸、橋本篤志、高橋　研、迎　展彰
“Single-Domain and Magnetic Properties of a Soft Magnetic Underlayer Plated on an Al/NiP Disk”
J. Magn. Soc. Japan 28, (3), 289-294 (2004).
S. Saito, A. Hashimoto, M. Takahashi, and N. Mukai

「Ti下地, Tiキャップ層を用いたCoCr系ポストアニール媒体における磁性結晶粒の磁気的孤立化」
日本応用磁気学会誌, 28, (3), 295-300 (2004).
齊藤　伸、板垣憲和、高橋　研
“Isolation of Magnetic Grains for CoCr-Based Perpendicular Media with Ti Cap- and Under-layers through Application of Post-annealing”
J. Magn. Soc. Japan, 28, (3), 295-300 (2004).
S. Saito, N. Itagaki, and M. Takahashi

“Nitridation Process of Al Layer by Microwave-Excited Plasma and Large Magnetoresistance in Co-Fe/Al-N/Co-Fe Tunnel Junctions? As a Comparison With Oxidization Process”,
IEEE Trans. Magn., 40, 2290-2292 (2004).
S. Yoshimura, T. Shoyama, T. Nozawa, M. Tsunoda, and M. Takahashi,

2003

“Direct Synthesis of fct-FePt Nanoparticles by Chemical Route”,
Jpn. J. Appl. Phys., 42, L350-L352 (2003).
B. Jeyadevan, K. Urakawa, A. Hobo, N. Chinnasamy, K. Shinoda, K. Tohji, D. D. Djayaprawira, M.Tsunoda, and M. Takahashi,

「磁気的層間結合を利用した高浮遊磁界耐性化裏打ち膜の材料課題」
日本応用磁気学会誌, 27 (4), 224-229 (2003).
齊藤伸、平井健一、橋本篤志、角田匡清、高橋研,
“Material Problems in Soft-Magnetic Underlayers with High Stray-Field Stability Using Interlayer Magnetic Coupling”
J. Magn. Soc. Japan, 27 (4), 224-229 (2003).
S. Saito, K. Hirai, A. Hashimoto, M. Tsunoda, and M. Takahashi

“Body Centered cubic buffer layers for enhanced lateral grain growth of Co/Cu multilayers”,
J. Appl. Phys., 93 (10), 6513-6515 (2003).
M.Tsunoda, D. Takahashi, and M.Takahashi,

「BCC固溶体下地層上に作製したCo/Cu多層膜のGMR効果の耐熱性」
日本応用磁気学会誌, 27 (8), 905-909 (2003).
高橋大輔、佐藤哲也、角田匡清、高橋研,
“Thermal Stabiliry of GMR in Co/Cu Multilayers Fabricated on bcc Solid Solution Buffer Layers”,
J. Magn. Soc. Japan, 27 (8), 905-909 (2003).
D. Takahashi, T. Sato, M. Tsunoda, and M. Takahashi

「強磁性トンネル接合用Al薄膜の酸化過程とマイクロ波励起プラズマ中の酸化種との相関」
日本応用磁気学会誌, 27 (12), 1130-1134 (2003).
吉村哲、角田匡清、尾形聡、高橋研
“Correlation between Oxidation Process of Al Film for Magnetic Tunnel Junctions and Oxidizing Species in the Microwave-Excited Plasma”
J. Magn. Soc. Jpn, 27 (12), 1130-1134 (2003).
S. Yoshimura, M. Tsunoda, S. Ogata, and M. Takahashi

「高角型比・高規格化保磁力CoCr基垂直磁気記録媒体の材料設計」
日本応用磁気学会誌, 27, (4), 204-209 (2003).
齊藤　伸、星　文和、板垣憲和、高橋　研
“Guideline for Selecting Materials to be used in CoCr-Based Perpendicular Media with High Squareness and Normalized Coercivity”
J. Magn. Soc. Jpn, 27, (4), 204-209 (2003).
S. Saito, F. Hoshi, N. Itagaki, and M. Takahashi

“Characterization to realize CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity”,
J. Appl. Phys., 93, (10), 6775-6777 (2003).
Shin Saito, Fumikazu Hoshi, Norikazu Itagaki, and Migaku Takahashi.

“Improvement of magnetocrystalline anisotropy of columnar structure for epitaxially grown CoCr-based perpendicular media”,
. Appl. Phys., 93, (10), 8182-8184 (2003).
S. Saito, N. Itagaki, F. Hoshi, and M. Takahashi.

「薄膜磁気記録媒体における諸特性の極薄Cr基シード層組成依存性－Cr基シード層の成長様式および融点・酸素親和性と媒体の微細構造との関係－」
日本応用磁気学会誌, 27 (4), 234-240 (2003).
吉村哲、D. D. Djayaprawira、三上正樹、高桑雄二、高橋研
“Dependence of Thin-Film Media Properties on the Composition of a Very Thin Cr-Based Seedlayer: Relation between Growth Form, Melting Point, Affinity for Oxygen of a Cr-Based Seedlayer, and Media Microstructure”
J. Magn. Soc. Jpn., 27 (4), 234-240 (2003).
S. Yoshimura, D. D. Djayaprawira , M. Mikami, Y. Takakuwa, and M. Takahashi

“Improvement of Exchange Bias Field by Introduction of Oxygen During Deposition of Ru Layer in AFC Media”,
J. Appl. Phys., 93 (10), 7408-7410 (2003).
D. D. Djayaprawira, H. Domon, S. Yoshimura, and M. Takahashi,

“The Effect of Very Thin Cr-based Seedlayer Material with Different Affinity for Oxygen on Thin Film Media Microstructure and Recording Properties”,
J. Appl. Phys., 93 (10), 8465-8467 (2003).
S. Yoshimura, D. D. Djayaprawira , Y. Takakuwa, and M. Takahashi,

“Reduction of magnetic interaction in CoB/Pd multilayer perpendicular media using a phase-separated Pd-SiO underlayer”,
J. Appl. Phys., 93 (10), 8164-8166 (2003).
H. Domon, D. D. Djayaprawira, M. Takahashi, T. Endou, and S. Furukawa,

“Effect of Oxidation Process on Grain Size Reduction for Longitudinal Media Using Ni-baced Amorphous Seedlayer”,
IEEE Trans. Magn., 39, 2258-2260 (2003).
M. Mikami, D. D. Djayaprawira, S. Yoshimura, and M. Takahashi,

“Effect of Naturally Adsorbed Gas on Substrate Surface on the Growth of Very Thin WCr Seedlayer”,
IEEE Trans. Magn., 39, 2270-2272 (2003).
S. Yoshimura, D. D. Djayaprawira, Y. Takakuwa, and M. Takahashi

“Fabrication of monodispersive FePt nanoparticle films stabilized on rigid substrates”
Appl. Phys. Lett. 82, 4352-4354 (2003).
A. C. C. Yu, M. Mizuno, Y. Sasaki, M. Inoue, H. Kondo, I. Ohta, D. Djayaprawira, and M. Takahashi,

“Unusually high coercivity and critical single-domain size of nearly monodispersed CoFe2O4 nanoparticles”
Appl. Phys. Lett. 83, 2862-2864 (2003).
C. N. Chinnasamy, B. Jeyadevan, K. Shinoda, K. Tohji, D. J. Djayaprawira, M. Takahashi, R. Justin Joseyphus, and A. Narayanasamy

2002

“Magnetic Anisotropy of Antiferromagnet in Exchange Coupled Ni-Fe/Mn-Ni Epitaxial Bilayers”,
Phys. Stat. Sol.., 189 (2), 449-457 (2002).
M.Tsunoda, M. Konoto and M.Takahashi

“Effect of an Fe-Si buffer layer on the magnetoresistance of a Co/Cu multilayer”,
J. Appl. Phys., 91 (7), 4461-4467 (2002).
S. Miura, D. Takahashi, M.Tsunoda and M.Takahashi

「スピンバルブ膜の自由層磁化過程に及ぼす層間結合磁界の影響」
日本応用磁気学会誌, 26 (4), 418-421 (2002).
今北健一、角田匡清、高橋研
“Effect of Interlayer Coupling on the Magnetization Process of a Free Layer in Spin-Valve Films”
J. Magn. Soc. Jpn, 26 (4), 418-421 (2002).
K. Imakita, M. Tsunoda, and M. Takahashi

“Computational study in synthetic ferromagnetic coupled media”,
J. Magn. Magn. Mat., 239, 22-24 (2002).
T. Michalke, D. D. Djayaprawira, M.Tsunoda and M. Takahashi,

“Exchange anisotropy of ferromagnetic/antiferromagnetic bilayers] intrinsic magnetic anisotropy of antiferromagnetic layer and single spin ensemble model”,
J. Magn. Magn. Mat., 239, 149-153 (2002).
M.Tsunoda and M. Takahashi

“Extra large unidirectional anisotropy constant of Co-Fe/Mn-Ir bilayers with ultra-thin antiferromagnetic layer”,
J. Magn. Magn. Mat., 239, 182-184 (2002).
M.Tsunoda, K. Nishikawa, T. Damm, T. Hashimoto and M. Takahashi,

“Enhanced lateral grain growth and enlarged giant magnetoresistance in Co/Cu multiplayer by Fe-Si buffer layer”,
J. Magn. Magn. Mat., 239, 282-284 (2002).
D. Takahashi, S. Miura, M.Tsunoda and M. Takahashi

“60% magnetoresistance at room temperature in Co-Fe/Al-O/Co-Fe tunnel junctions oxidized with Kr-O2 plasma”,
Appl. Phys. Lett., 80, 3135-3137 (2002).
M.Tsunoda, K. Nishikawa, S. Ogata and M. Takahashi

“Interactive effect of impurities on giant magnetoresistance of Co-Fe/Cu multilayers”,
J. Magn. Magn. Mat., 240, 189-191 (2002).
M.Tsunoda, H. Arai, D. Takahashi, S. Miura and M. Takahashi

“Correlation between the exchange bias and the degree of ordering of antiferromagnetic layer in PtMn/Co-Fe bilayers”,
J. Magn. Magn. Mat., 240, 277-279 (2002).
T. Sato, M.Tsunoda and M. Takahashi

“Magnetic anisotropy of antiferromagnet and its role on the exchange bias in ferromagnetic/antiferromagnetic bilayers”,
J. Phys. D, 35, 2365-2376 (2002).
M. Takahashi and M.Tsunoda,

“New Plasma Source with Low Electron Temperature for Fabrication of an Insulating Barrier in Ferromagnetic Tunnel Junctions”,
IEEE Trans. Magn., 38, 2718-2720 (2002).
K. Nishikawa, M.Tsunoda, S. Ogata, and M. Takahashi

“Quantitative evaluation of magnetocrystalline anisotropy of columnar grains and thickness of initial layer in CoCr-based perpendicular media”,
Appl.Phys. Lett., 80, (5), 811-813 (2002).
S. Saito, D. Hasegawa, F. Hoshi, David D. Djayaprawira and M. Takahashi

「CoCr基垂直薄膜媒体の回転ヒステリシス損失消失磁界の膜厚依存性」
日本応用磁気学会誌, 26 (4), 215-218 (2002).
齊藤　伸、佐藤好浩、星文和、高橋　研
“Thickness Dependence of the Magnetic Field Determined from the Vanishing Rotational Hysteresis Loss for CoCr-based Perpendicular Thin-Film Media”
J. Magn. Soc.　Jpn, 26 (4), 215-218 (2002).
S. Saito, Y. Sato, F. Hoshi, and M. Takahashi

「Co60Cr40/極薄C中間層を用いたCoCrPtB垂直磁気記録媒体の磁気特性と微細構造」
日本応用磁気学会誌, 26 (4), 210-214 (2002).
齊藤　伸、星文和、高橋　研
“Magnetic Properties and Microstructure of CoCrPtB Perpendicular Thin-Film Media with a Co60Cr40 Layer and a Very Thin C Layer”
J. Magn. Soc. Jpn, 26 (4), 210-214 (2002).
S. Saito, F. Hoshi, and M. Takahashi

「インラインプロセスにより制御したFeTaN薄膜の軟磁気特性ならびにノイズ特性」
日本応用磁気学会誌, 26 (4), 248-252 (2002).
齊藤　伸、平井健一、高橋　研
“Induced Magnetic Anisotropy and Noise Property for the Soft Underlayer of an FeTaN Thin Film Controlled by an In-line Process”
J. Magn. Soc. Jpn, 26 (4), 248-252 (2002).
S. Saito, K. Hirai, and M. Takahashi

“Evaluation of thickness of initial growth layer in CoCr-based perpendicular media by perpendicular torquemetry”
J. Appl. Phys., 91, (10), 8028-8030 (2002).
S. Saito, F. Hoshi and M. Takahashi

“Study of magnetic field determined from vanishing rotational hysteresis loss in CoCrPtB perpendicular thin film media”
J. Appl. Phys., 91, (10), 8351-8353 (2002).
S. Saito, Y. Sato, F. Hoshi, D. D. Djayaprawira and M. Takahashi

“Analysis of growing mechanism for MnSb epitaxial films fabricated on a Si substrate by DC sputtering”
J. Appl. Phys., 91, (10), 8096-8098 (2002).
Y. Ashizawa, S. Saito and M. Takahashi

“Temperature dependence of perpendicular magnetic anisotropy for c-plane-oriented MnSb sputtered films”
J. Appl. Phys., 91, (10), 8240-8242 (2002).
Y. Ashizawa, S. Saito and M. Takahashi

“Effects of Very Thin Carbon Seedlayer on Formation of hcp Phase for CoCrPtB/Co60Cr40 Perpendicular Magnetic Recording Media”
IEEE Trans. Magn., 38, (5), 1985-1987 (2002).
S. Saito, F. Hoshi, and M. Takahashi

“Dependence of Exchange Bias Field on Composition of Stabilizing Layer and Sputtering Process in Synthetic Ferrimagnetic Coupled Media”,
J. Magn. Magn. Mat., 239, 396-398 (2002).
D. D. Djayaprawira, K. Komiyama, S. Yoshimura, T. Michalke, and M. Takahashi,

“Study on Increasing Coercivity in CoCrPtB Media with High Pt Content”,
J. Appl. Phys., 91 (10), 7074-7076 (2002).
M. Mikami, D. D. Djayaprawira, H. Domon, S. Yoshimura, M. Takahashi, and K. Komiyama

“Magnetic Grain Size Reduction by Using Oxygen Exposure Process onto Very Thin WCr Seedlayer in Longitudinal Media”,
J. Appl. Phys., 91 (10), 8629-8631 (2002).
S. Yoshimura, D. D. Djayaprawira, M. Mikami, M. Takahashi, K. Komiyama, A. Horii, A. Ohno, and S. Katayama

“Effect of Ge addition on postannealed CoCrGePt thin film media”,
J. Appl. Phys., 91 (10), 8632-8634 (2002).
H. Domon, D. D. Djayaprawira, M. Takahashi, T. Endo, and S. Furukawa

“Dependence of thin film media microstructure and recording properties on composition of very thin Cr-based seedlayer”,
IEEE Trans. Magn., 38 (5), 1958-196 (2002).
S. Yoshimura, D. D. Djayaprawira, M. Mikami, Y. Takakuwa, and M. Takahashi

「α’-FeCo-Cスパッタ薄膜の構造と磁気特性」
日本応用磁気学会誌, 26, 433-436 (2002),
須永和晋、高橋有紀子、荘司弘樹、高橋　研
“Structure and Magnetic Properties of α’-FeCo-C Sputtered Films”
J. Magn. Soc. Jpn, 26, 433-436 (2002).
K. Sunaga, Y.K.Takahashi,H .Shoji, and M. Takahashi

“Magnetic properties and microstructure of CoGeCr-based thin film media”
J. Magn. Magn. Mat., 239, 406-408 (2002).
H. Domon, D. D. Djayaprawira,and M. Takahashi

“New soft magnetic materials of α’-Fe-C with high Bs”
J. Magn. Magn. Mat., 239, 479-483 (2002).
M. Takahashi, Y. Takahashi, K. Sunaga, and H. Shoji

2001

「CoCr基垂直薄膜媒体におけるコラム状結晶と初期層の磁気特性の分離評価」
日本応用磁気学会誌, 25, 583-586 (2001).
齊藤　伸、長谷川　大二、D. D. ジャヤプラウィラ、高橋　研
“Evaluation for Separating Magnetic Properties of Columnar Structure and Initial layer in CoCr-based Perpendicular Thin-Film Media”
J. Magn. Soc. Jpn, 25, 583-586 (2001).
S.Saito, D.Hasegawa, D.D.Djayaprawira and M.Takahashi

「光学的手法による垂直薄膜媒体磁化過程の膜厚方向解析」
日本応用磁気学会誌, 25, 587-590 (2001).
齊藤　伸、八田芳仁、高橋　研
“Optical Analysis of Magnetization Process Dependence on Film Depth for Perpendicular Thin-Film Media”
J. Magn. Soc. Jpn, 25, 587-590 (2001).
S.Saito, Y.Hatta, and M.Takahashi

「極薄高融点WCrシード層による薄膜磁気記録媒体の結晶粒細化 －高HｋGrain 媒体における低ノイズ化－」
日本応用磁気学会誌, 25, 627-630 (2001).
吉村　哲、D.D.Djayaprawira、堀井　明、三上正樹、荘司弘樹、高橋　研
“Grain Size Reduction by Utilizing a Very Thin, High-melting-point WCr Seedlayer in Longitudinal Media: Media Noise Reduction in High HｋGrain Media”
J. Magn. Soc. Jpn., 25, 627-630 (2001).
S. Yoshimura, D.D.Djayaprawira, A.Horii, M.Mikami, H.Shoji, and M.Takahashi.

「スピンバルブ膜の構造と磁気特性に影響を及ぼすTa/NiFe下地層の成長過程」
日本応用磁気学会誌, 25, 811-814(2001).
屋上公二郎、今北健一、角田匡清、高橋　研
“Effects of Initial Growth of Ni-Fe Layer on Ta Films on the Structure and Magnetic Properties of Spin Valves Grown on It”
J. Magn. Soc. Jpn, 25, 811-814 (2001).
K.Yagami, K.Imakita, M.Tsunoda, and M.Takahashi

「微量酸素添加スパッタ雰囲気で作製したCo-Fe/Cu多層膜のGMR効果」
日本応用磁気学会誌, 25, 815-818 (2001).
三浦　聡、新井秀雄、角田匡清、高橋　研
“GMR in Co-Fe/Cu Multilayers Fabricatd under Sputtering Atmosphere with a SmallOxygen Impurity Introduced”
J. Magn. Soc. Jpn, 25 (2001), 815-818.
S.Miura, H.Arai, M.Tsunoda, and M.Takahashi

「磁界中熱処理による強磁性反強磁性多結晶積層膜の交換磁気異方性の可逆的方向制御」
日本応用磁気学会誌, 25, 827-830 (2001).
角田匡清、橋本崇彦、甲野藤 真、高橋　研
“Reversible Change of Direction of the Exchange Anisotropy of Polycrystalline Ferromagnetic /Antiferromagnetic Bilayers by Thermal Annealing in Magnetic Field.”
J. Magn. Soc. Jpn., 25, 827-830 (2001).
M.Tsunoda, T.Hashimoto, M.Konoto, and M.Takahashi

「スパッタリング法により作製したc面配向MnSb薄膜の平坦化」
日本応用磁気学会誌, 25, 855-858 (2001).
齊藤　伸、芦沢好人、荘司弘樹、高橋　研
“Decrease in Surface Roughness of c-Plane-oriented MnSb Films Prepared by Sputtering.”
J. Magn. Soc. Jpn., 25, 855-858 (2001).
S. Saito, Y. Ashizawa, H. Shoji, and M.Takahashi

“Role of oxygen in the film growth and giant magnetoresistance of Co/Cu multilayers”
J. Appl. Phys., 89, 6308-6313 (2001).
S. Miura, M. Tsunoda, and M. Takahashi

“Effect of oxygen on the formation of Fe16N2sputtered films”
J. Magn. Magn. Mat., 232, 18-26 (2001).
Y. Takahashi, M. Katou, H. Shoji, and M. Takahashi

“Correlation Between Activation Volume and Intergranular Magnetic Interaction in Longitudinal Media”
IEEE Trans. Magn., 37, 1484-1487 (2001).
M.Mikami,D.D.Djayaprawira,T.K.Kong,S.Yoshimura,A.Horii,and M.Takahashi

“Improvement of Magnetic and R/W Properties in Longitudinal Media by Using CrX/Cr Dual Underlayer”
IEEE Trans. Magn., 37, 1497-1499 (2001).
D.D.Djayaprawira,A.Horii,K.Komiyama,S.Yoshimura,M.Mikami, H.Domon,and M.Takahashi

“Magnetocrystalline Anisotropy for α’-Fe-C and α’-Fe-N Films”
IEEE Trans. Magn., 37, 2179-2181 (2001).
M. Takahashi,Y. Takahashi,and H. Shoji

“Variation of magnetic properties along the film thickness in perpendicular thin film media investigated by optical method”
J. Magn. Magn. Mat., 235, 120-125 (2001).
S. Saito, Y. Hatta, and M. Takahashi

“Anisotropic magnetic field-effect on martensitic transformation for Co and Co alloys”
J. Phys. IV France, 11, 269-274 (2001).
T. Tanaka, M. Takahashi, and S. Kadowaki

2000

“α”- Fe16N2 problem?giant magnetic moment or not?”
J. Magn. Magn. Mat.ls, 208, 145-157 (2000).
M. Takahashi and H.Shoji

“α”-Fe16N2 : giant magnetic moment or not?”
PHILOSOPHICAL MAGAZINE B, 80, 215-226 (2000).
M. Takahashi and H.Shoji

“Extremely clean sputtering process for spin valves: exchange anisotropy and spin-dependent transport”
J. Magn. Magn. Mat.s, 209, 65-70 (2000).
M. Takahashi, M. Tsunoda, and K. Uneyama

“Impurity effect of carbon on structure and saturation magnetization of Fe-N films”
J. Magn. Magn. Mat., 210, 333-340 (2000).
Y.Takahashi, H.Shoji, M.Takahashi

「α’-(Fe100-xNix)-N(x=5-30)薄膜の構造と飽和磁化」
日本応用磁気学会誌, 24, 531-534 (2000).
高橋有紀子、荘司弘樹、高橋　研
“Structure and Saturation Magnetization for a’-(Fe100-xNix)-N(x=5-30) Films”
J. Magn. Soc. Jpn., 24, 531-534 (2000).
Y.Takahashi, H.Shoji, and M.Takahashi

「プレーナ配置式スパッタリング法によるMnSbエピタキシャル薄膜の作製
―エピタキシャル成長に及ぼす基板温度ならびに基板バイアスの効果―」
日本応用磁気学会誌, 24, 531-534 (2000).
齊藤　伸、芦沢好人、荘司弘樹、高橋　研、宮崎照宣
“Epitaxial Growth of MnSb Films fabricated by Planar Sputtering : Effect of Substrate Temperature and Bias on Epitaxial Growth”
J. Magn. Soc. Jpn., 24, 547-550 (2000).
S.Saito, Y.Ashizawa, H.Shoji, M.Takahashi, and T.Miyazaki

「対向ターゲット式スパッタ法によるMgO単結晶基板上へのNi-Fe/Mn-Ni積層膜のエピタキシャル成長」
日本応用磁気学会誌, 24, 631-634 (2000).
甲野藤　真、角田匡清、高橋　研
“Epitaxial Growth of Ni-Fe/Mn-Ni Bilayers on MgO Single-Crystal Substrates by Facing Targets Sputtering Method”
J. Magn. Soc. Jpn., 24, 631-634 (2000).
M.Konoto, M.Tsunoda, and M.Takahashi

「面内高配向Ni-Fe/Mn-Ni交換結合膜の磁気トルク解析から求めた反強磁性層の磁気異方性」
日本応用磁気学会誌, 24, 635-638 (2000).
甲野藤　真、角田匡清、高橋　研
“Magnetic Anisotropy of the Antiferromagnetic Layer of Ni-Fe/Mn-Ni Exchange-Couplied Epitaxial Bilayers Determined by Magnetic Torque Analysis.”
J. Magn. Soc. Jpn., 24, 635-638 (2000).
M.Konoto, M.Tsunoda, and M.Takahashi

「蒸着法で作製したNi-Fe/Mn-(Ni-Fe)積層膜の構造と交換磁気異方性」
日本応用磁気学会誌, 24, 639-642 (2000).
甲野藤　真、佐藤　岳、角田匡清、高橋　研
“Structure and Exchange Anisotropy of Evaporated Ni-Fe/Mn-(Ni-Fe) Films”
J. Magn. Soc. Jpn., 24, 639-642 (2000).
M.Konoto, T.Sato, M.Tsunoda, and M.Takahashi

“Magnetic anisotropy and rotational hysteresis loss in exchange coupled Ni-Fe/Mn-Ir films”
J. Appl. Phys., 87, 4375-4388 (2000).
M. Tsunoda, Y. Tsuchiya, T. Hashimoto, and M. Takahashi.

“Magnetic anisotropy in antiferromagnetic layers affecting exchange bias of Ni-Fe/Mn-Ir bilayers”
J. Appl. Phys., 87, 4930-4932 (2000).
K. Yagami, M. Tsunoda, and M. Takahashi

“Single spin ensemble model for the change of unidirectional anisotropy constant by annealing on polycrystalline ferromagnetic/antiferromagnetic bilayers”
J. Appl. Phys., 87, 4957-4959 (2000).
M. Tsunoda and M. Takahashi

“Field independent rotational hysteresis loss on exchange coupled polycrystalline Ni-Fe/Mn-Ir bilayers”
J. Appl. Phys., 87, 6415-6417 (2000).
M. Tsunoda and M. Takahashi

“Grain size reduction by utilizing a very thin CrW seedlayer and dry-etching process in CoCrTaNiPt longitudinal media”
J. Appl. Phys., 87, 6860-6862 (2000).
S. Yoshimura, D.D.Djayaprawira, T. K. Kong, Y. Masuda, H. Shoji, and M. Takahashi.

“Magnetic and structural properties of CoCrTaNiPt longitudinal thin-film media”
J. Appl. Phys., 87, 6866-6868 (2000).
S. Yoshimura, D.D.Djayaprawira, H. Shoji, and M. Takahashi

“Saturation magnetization and uniaxial magnetocrystalline anisotropy for Co-based binary and Co-Ge-Cr ternary alloys”
Appl. Phys. Lett., 76, 3457-3459 (2000).
M. Takahashi, H. Shoji, S. Kadowaki, D.D.Djayaprawira, Y. Komori, and H. Domon

“Novel Sputtering Process to Reduce the Grain Size and Its Distribution in Co-based Longitudinal Thin Film Media－New Seedlayer and High KuGrain Material”
IEEE Trans. Magn., 36, 2315-2320 (2000).
M. Takahashi, H. Shoji, D.D.Djayaprawira, and S. Yoshimura

“Media Noise Reduction in Co-based Longitudinal Media with New Co Co-Precipitated NiP/Al Substrate”
IEEE Trans. Magn., 36, 2363-2365 (2000).
S.Yoshimura, D.D.Djayaprawira, T. K. Kong, Y.Masuda, H.Shoji, and M.Takahashi

“Ultra-clean sputtering process for magnetic thin films on hard disk drives”
Vacuum, 59, 814-824 (2000).
M. Takahashi, M. Tsunoda, and H. Shoji.

“Evolution of Magnetic Domain Patterns Associated with Field-Induced DHCP-HCP Transformation of Co-1.2%Fe Alloy”
Materials Transactions, JIM, 41, 950-954 (2000).
T. Tanaka, M. Takahashi, and S. Kadowaki