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2003 Fiscal Year Final Research Report Summary

Spin injection into high quality small magnetic tunnel junctions

Research Project

Project/Area Number 13305001
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionTohoku University

Principal Investigator

MIYAZAKI Terunobu  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (60101151)

Co-Investigator(Kenkyū-buntansha) SUZUKI Yoshishige  National Institute of Advanced Industrial Science and Technology, Researcher, エレクトロニクス研究部門, 主任研究員 (50344437)
KUBOTA Hitoshi  Tohoku University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (30261605)
ANDO Yasuo  Tohoku University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (60250726)
Project Period (FY) 2001 – 2003
KeywordsFerromaanetic tunnel junction / Spin injection / nanometer size / Pulse magnetic field / LLG equation / Focused ion beam / Coplanar / Ferromagnetic resonance
Research Abstract

A process for fabricating small magnetic tunnel junctions (MTJs) by using focused ion beam (FIB)-assisted chemical vapor deposition was investigated. Deposited tungsten was used as an electrode, and deposited carbon or tungsten was used as a mask. MTJs with a junction area of 400 x 400 nm^2 showed a tunnel magneto-resistance (TMR) ratio of about 30 % at room temperature. An apparatus for MR measurement of small MTJs by using conductive AEM was set up. The MR ratio for the junction with 2 x 0.7 μm-2 was 29%.
Ferromagnetic resonance (FMR) spectra were measured for the Cu/Al-oxide/FeNi/Cu multilayers. Both FMR and the electrical detected microwave resonance (EDMR) spectra suggested that the spin was injected into non-magnetic metal layers due to the spin current generated by the spin precession.
For the electrical detection of the magnetization reversal, a homemade probing apparatus. using air-coplanar probes was set up. A pulse generator was used to create current pulses with less than 500 … More ps rise time through the upper electrode of the MTJs. The time to switch the magnetization decreased to 500 ps with increasing the field pulse amplitude up to 100 Oe with no hard axis field. The time to switch the magnetization became short and the reversal became clear with increasing the hard axis field. The transition time estimated using Landau-Lifshitz-Gilbert (LLG) equation of motion of the exact experimental conditions agreeded well with the experimental measurements.
Magnetization precession of NM/FeNi/NM (NM=Cu and Pt) multilayers was measured by time-resolved magneto-optical Kerr effect (MOKE). The MOKE measurement system equipped with a pulse laser, optical delay lines was set up and samples were combined with photoconductive switch for pulse filed generation. Clear oscillation and relaxation of the magnetization of motion in time domain were successfully observed. Gilbert damping constant α for Cu/FeNi/Cu multilayers was independent of the thickness of feNi. While α for Pt/FeNi/Pt multilayers was enhanced as FeNi layer was thinner. These experimental data were well fitted by LLG-calculation with the same α obtained by ferromagnetic resonance. Less

  • Research Products

    (82 results)

All Other

All Publications (82 results)

  • [Publications] Junichirou Murai: "Magnon excitation of CoFe/Al-oxide/CoFe ferromagnetic tunnel junctions"J.Magn.Magn.Mater.. 226-230. 922-923 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Ando: "Local transport properties of ferromagnetic tunnel junctions"J.Magn.Magn.Mater.. 226-230. 924-925 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shigemi Mizukami: "Ferromagnetic resonance linewidth for NM/80NiFe/NM films (NM=Cu, Ta, Pd and Pt)"J.Magn.Magn.Mater.. 226-230. 1640-1642 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 安藤 康夫: "スピンが担うエレクトロニクスの未来"パリテイ. 16・12. 23-29 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masamitsu Hayashi: "Scanning Tunneling Microscopy Observation of the Initial State of Oxidation in Ferromagnetic Tunnel Junctions"Japanese Journal of Applied Physics. 40. L1317-L1319 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hitoshi Kubota: "Magnetoresistance and Dipole Shift of Ultrasmall Magnetic Tunnel Junctions Characterized by Conducting Atomic Force Microscopy"Japanese Journal of Applied Physics. 41. L180-L182 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Andrew C.C.Yu: "Lorentz transmission electron microscopy and magnetic force microscopy characterization of NiFe/Al-oxide/Co films"Journal of Applied Physics. 91. 780-784 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shigemi Mizukami: "Magnetic relaxation of normal-metal(NM)/80NiFe/NM films"J.Magn.Magn.Mater.. 239. 42-44 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] X.F.Han: "A self-consistent calculation of intrinsic magnetoelectric properties in magnetic tunnel junctions"J.Magn.Magn.Mater.. 239. 167-169 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 井浦 聡則: "ラジカル酸化法で作製した高耐熱強磁性トンネル接合"日本応用磁気学会誌. 26. 839-842 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Andrew C.C.Yu: "Effect of Ti seed layer on the magnetization reversal process of Co/NiFe/Al-oxide/NiFe junction films"Journal of Applied Physics. 91. 5234-5239 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Andrew C.C.Yu: "Microstructural and magnetic characteristics of IrMn exchange-biased tunnel junctions"J.Magn.Magn.Mater.. 240. 130-133 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Ando: "Growth mechanism of thin insulating layer in ferromagnetic tunnel _junctions prepared using various oxidation methods"Journal of Physics D. 35. 2415-2421 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shigemi Mizukami: "Effect of spin diffusion on Gilbert damping for a very thin permalloy layer in Cu/permalloy/Cu/Pt films"Physical Review B. 66. 104413-1-104413-9 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮崎 照宣: "スピンエレクトロニクス技術の発展と固体磁気メモリへの応用"電子情報通信学会誌. 85. 819-825 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮崎 照宣: "トンネル磁気抵抗効果とスピンエレクトロニクスの展開"固体物理. 38. 109-124 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 井浦 聡則: "下部磁性層を酸化して作製したトンネル接合の高耐熱特性"日本応用磁気学会誌. 27. 303-306 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮崎 照宣: "スピントロニクスの発展とMRAMの研究開発動向"電子技術. 5. 34-39 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Terunobu Miyazaki: "Recent Development of MRAM Technology"Journal of Magnetics. 8. 36-44 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Ando: "Interface characterization of magnetic tunnel junctions by using tunneling spectroscopy"Journal of Applied Physics. 93. 7023-7025 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hitoshi Kubota: "Hard mask fabrication for magnetic random access memory elements using focused ion beam assisted selective chemical vapor deposition"Journal of Applied Physics. 93. 8370-8372 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.H.Yu: "Magnetic tunnel junctions with high magnetoresistance and small bias voltage dependence using epitaxial NiFe(111) ferromagnetic bottom electrodes"Journal of Applied Physics. 93. 8555-8557 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.H.Yu: "Electron transport properties in magnetic tunnel junctions with epitaxial NiFe (111) ferromagnetic bottom electrodes"Appl.Phys.Lett.. 82. 4735-4737 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hitoshi Kubota: "Size dependence of switching field of magnetic tunnel junctions down to 50 nm scale"Journal of Applied Physics. 93. 8370-8372 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 水上 成美: "強磁性体/非磁性体接合におけるスピンポンピング"日本応用磁気学会誌. 27. 934-939 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomohiko Niizeki: "Nanofabrication of magnetic tunnel junctions by using side-edge thin film deposition"Science and Technology of Advanced Materials. 4. 347-352 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮崎 照宣: "スピンダイナミックス"マテリアルインテグレーション. 16・9. 23-28 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ji Hyun Lee: "Characterization of thermally annealed tunnel junctions with preoxidized CoFe pinned electrode"Journal of Applied Physics. 94. 7778-7783 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 安藤 康夫: "超高密度磁気メモリ"電子材料. 43・1. 136-141 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 安藤 康夫: "ユニバーサルメモリMRAM"応用物理. 73. 390-393 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 渡邉 大輔: "集束イオンビームを用いた微小強破性トンネル接合の作製"日本応用磁気学会誌. 28. 569-572 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中田 淳: "Co_2MnAlホイスラー合金を用いた強磁性トンネル接合"日本応用磁気学会誌. 28. 573-576 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Xiu Feng Han: "Switching properties and dynamic domain structures in double barrier magnetic tunnel junctions"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Ando: "Time-resolved magnetization precession and reversal dynamics investigated using tunneling current and Kerr effect"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Ando: "Ferromagnetic tunnel junctions with high thermal stability"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomohiko Niizeki: "Nanofabrication of magnetic tunnel junctions using electron beam lithography"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hitoshi Kubota: "CO+NH_3 plasma etching for magnetic thin films"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Mikihiko Oogane: "Tunnel spectra for Al/Al-oxide/Ni_<80>Fe_<20> junctions under the superconducting transition temperature of Al films"Journal of Magnetics and Magnetic Materials. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Mikihiko Oogane: "Tunnel Conductance in Ni_<80>Fe_<20>/Al-oxide/Al Junctions below the superconducting temperature of Al films"Transactions of Material Research Society. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiroaki Nakamura: "Measurement of magnetization precession for NM/Ni_<80>Fe_<20>/NM (NM=Cu and Pt) using time-resolved Kerr effect"Japanese Journal of Applied Physics. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masamitsu Hayashi: "Spin-dependent inelastic electron tunneling spectroscopy of magnetic tunnel junctions"Japanese Journal of Applied Physics. (In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.Murai, Y.Ando, T.Daibou, K.Yaoita, H.F.Han, T.Miyazaki: "Magnon excitation of CoFe/Al-oxide/CoFe ferromagnetic tunnel junctions"J.Magn.Magn.Mater.. 226-230. 922-923 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, M.Hayashi, M.Kamijo, H.Kubota, T.Miyazaki: "Local transport properties of ferromagnetic tunnel junctions"J.Magn.Magn.Mater.. 226-230. 924-925 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Mizukami, Y.Ando, T.Miyazaki: "Ferromagnetic resonance linewidth for NM/80NiFe/NM films (NM=Cu, Ta, Pd and Pt)"J.Magn.Magn.Mater.. 226-230. 1640-1642 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando: "Future of electronics pioneered by spin"Parity. 16-12. 23-29 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Hayashi, Y.Ando, T.Miyazaki: "Scanning Tunneling Microscopy Observation of the Initial State of Oxidation in Ferromagnetic Tunnel Junctions"Jpn.J.Appl.Phys.. 40. L1317-L1319 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kubota, G Reiss, H.Brucki, W.Schepperi, J.Weckker, G.Gieres: "Magnetoresistance and Dipole Shift of Ultrasmall Magnetic Tunnel Junctions Characterized by Conducting Atomic Force Microscopy"Jpn.J.Appl.Phys.. 41. L180-L182 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Andrew C.C.Yu, C.C.H.Lo, A.Petford-Long, D.Jiles, T.Miyazaki: "Lorentz transmission electron microscopy and magnetic force microscopy characterization of NiFe/Al-oxide/Co films"J.Appl.Phys.. 91. 780-784 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Mizukami, Y.Ando, T.Miyazaki: "Magnetic relaxation of normal-metal(NM)/80NiFe/NM films"J.Magn.Magn.Mater.. 239. 42-44 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] X.F.Han, W.Y Lai, J.-Q.Wang, C.J.O'Connor, T.Miyazaki: "A self-consistent calculation of intrinsic magnetoelectric properties in magnetic tunnel junctions"J.Magn.Magn.Mater.. 239. 167-169 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Lura, H.Kubota, Y.Ando, T.Miyazaki: "Enhancement of Thermal Stability in Ferromagnetic Tunnel Junctions Prepared by the Radical Oxidation Method"J.Magn.Soc.Jpn.. 26. 839-842 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Andrew C.C.Yu, A.K.Petford-Long, K.O'Grady, T.Miyazaki: "Effect of Ti seed layer on the magnetization reversal process of Co/NiFe/Al-oxide/NiFe junction films"J.Magn.Magn.Mater.. 91. 5234-5239 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Andrew C.C.Yu, X.F.Han, J.Murai, Y.Ando, T.Miyazaki, K.Hiraga: "Microstructural and magnetic characteristics of IrMn exchange-biased tunnel junctions"J.Appl.Phys.. 240. 130-133 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, M.Hayashi, S.Iura, K.Yaoita, C.C.Yu, H.Kubota, T.Miyazaki: "Growth mechanism of thin insulating layer in ferromagnetic tunnel junctions prepared using various oxidation methods"J.Phys.D. 35. 2415-2421 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Mizukami, Y.Ando, T.Miyazaki: "Effect of spin diffusion on Gilbert damping for a very thin Ni_<80>Fe_<20> layer in Cu/Ni_<80>Fe_<20>/Cu/Pt films"Physical Review B. 66. 104131-1-104131-9 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki: "Development of Spin-electronics Technology and Application for Solid Magnetic Random Access Memory"J.Inst.Elec.Inf.Comm.. 85. 819-825 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki, Y.Ando, H.Kubota: "Tunnel magnetoresistance and spinelectronics"Solid State Physics. 84. 109-124 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Iura, H.Kubota, Y.Ando, T.Miyazaki: "Thermal Stability of Tunnel Junctions with additional oxidation at the surface of the bottom electrode"J.Magn.Soc.Jpn.. 27. 303-306 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki: "Development of Spin-electronics Technology and Application for Magnetic Random Access Memory"Denshi-gijutsu. 2003-5. 34-39 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki, Y.Ando, H.Kubota: "Recent Development of MRNM Technology"Journal of Magnetics. 8. 36-44 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, M.Hayashi, M.Oogane, H.Kubota, T.Miyazaki: "Interface characterization of magnetic tunnel junctions by using tunneling spectroscopy"J.Appl.Phys.. 93. 7023-7025 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kubota, M.Hamada, Y Ando, T.Miyazaki: "Hard mask fabrication for magnetic random access memory elements using focused ion beam assisted selective chemical vapor deposition"J.Appl.Phys.. 93. 8370-8372 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.H.Yu, H.Lee, M.Hayashi, H.Kubota, Y.Ando, T.Miyazaki: "Magnetic tunnel junctions with high magnetoresistance and small bias voltage dependence using epitaxial NiFe(111) ferromagnetic bottom electrodes"J.Appl.Phys.. 93. 8555-8557 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.H.Yu, H.M.Lee, Y.Ando, T.Miyazaki: "Electron transport properties in magnetic tunnel junctions with epitaxial NiFe (111) ferromagnetic bottom electrodes"Appl.Phys.Lett.. 82. 4735-4737 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kubota, Y.Ando, T.Miyazaki, G.Reiss, H.Bruckl, W.Schepper: "Size dependence of switching field of magnetic tunnel junctions down to 50 nm scale"J.Appl.Phys.. 93. 8370-8372 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Mizukami, Y.Ando, T.Miyazaki: "Spin Pumping in Ferromagnetic-Metal/Normal-Metal Junctions"J.Magn.Soc.Jpn.. 27. 934-939 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Niizeki, H.Kubota, Y.Ando, T.Miyazaki: "Nanofabrication of magnetic tunnel junctions by using side-edge thin film deposition"Science and Technology of Advanced Materials. 4. 347-352 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki, Y Ando, S.Mizukami, H.Nakamura: "Spin Dynamics"Materials Integration. 16. 23-28 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.H.Lee, D.H.Im, C.S.Yoon, C.K.Kim, Y.Ando, H.Kubota, T.Miyazaki: "Characterization of thermally annealed tunnel junctions with preoxidized CoFe pinned electrode"J.Appl.Phys.. 94. 7778-7783 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, N.Teduka, Y.Ohno, H.Kurino, H.Kubota, H.Ohno: "High Density Magnetic memory"Denshi-zairyou. 43-1. 136-141 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando: "Universal memory MRAM"OYO BUTURI. 73. 390-393 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D.Watanabe, H.Kubota, Y.Ando, T.Miyazaki: "Fabrication of Small Magnetic Tunnel Junctions Using a Focused Ion Beam"J.Magn.Soc.Jpn. 28. 569-572 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Nakata, M.Oogane, H.Kubota, Y Ando, H.Kato, T.Miyazaki: "Ferromagnetic Tunnel Junctions Using Co_2MnAl Heusler Alloy"J.Magn.Soc.Jpn. 28. 573-576 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] X.F.Han, S.F.Zhao, F.F.Li, T.Daibou, H.Kubota, Y.Ando, T.Miyazaki: "Switching properties and dynamic domain structures in double barrier magnetic tunnel junctions"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, H.Nakamura, S.Mizukami, H.Kubota, T.Miyazaki: "Time-resolved magnetization precession and reversal dynamics investigated using tunneling current and Kerr effect"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ando, S.Iura, H.Kubota, T.Miyazaki, C.S.Yoon, J.H.Lee, D.H.Im, C.K.Kimf: "Ferromagnetic tunnel junctions with high thermal stability"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Niizeki, H.Kubota, Y.Ando, T.Miyazaki: "Nanofabrication of magnetic tunnel junctions by using electron beam lithography"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kubota, Y.Ando, T.Miyazaki: "CO+NH_3 plasma etching for magnetic thin films"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oogane, T.Daibou, H.Kubota, Y.Ando, T.Miyazaki: "Tunnel spectra for Al/Al-oxide/Ni_<80>Fe_<20> junctions under the superconducting transition temperature of Al films"J.Magn.Magn.Mater.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oogane, T.Daibou, H.Kubota, Y.Ando, T.Miyazaki: "Tunnel Conductance in Ni_<80>Fe_<20>/Al-oxide/Al Junctions below the superconducting temperature of Al films"Trans.Mat.Res.Soc.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nakamura, Y.Ando, H.Kubota, S.Mizukami, T.MiyazakiA: "Measurement of magnetization precession for NM/Ni_<80>Fe_<20>/NM (NM=Cu and Pt) using time-resolved Kerr effect"Jpn.J.Appl.Phys.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Hayashi, Y.Ando, M.Oogane, H.Kubota, T.Miyazaki: "Spin-dependent inelastic electron tunneling spectroscopy of magnetic tunnel junctions"Jpn.J.Appl.Phys.. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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