京都大学化学研究所研究者情報   [ English | Japanese ]


森山 貴広(もりやま たかひろ)

材料機能化学研究系 ナノスピントロニクス
准教授
Ph.D. Physics
URL:http://www.kuchem.kyoto-u.ac.jp/organization/lab/nano.html
E-mail: mtaka@scl.kyoto-u.ac.jp
Tel: +81-774-38-3123
Fax:

研究・教育歴
    学歴
    2001.3 東北大学工学部材料物性学科 卒業
    2003.3 東北大学大学院工学研究科博士課程前期 修了
    2008.8 デラウェア大学(米国) 物理学科Ph.D. Course 修了
    2008.8 物理学Ph.D.(米国) 取得
    職歴
    2004.9 デラウェア大学(米国)研究助手
    2008.8 コーネル大学(米国)物理・応用物理学科 博士研究員
    2011.11 TDK-Headway Technologies, Inc. R&D (米国) Senior Engineer
    2014.9-2014.12 National Institute for Standards and Technology (米国)客員研究員
    2012.8-2016.3 京都大学化学研究所 助教
    2016.4-現在 京都大学化学研究所 准教授
専門分野
    スピントロニクス、スピンダイナミクス、磁性材料
主な研究テーマ
  1. 高周波スピントロニクスデバイス
主な論文・著書
  1. ----------------- Google Scholar data for up-to-date info ------------------,
  2. W. S. Ham, S. Kim, D.-H. Kim, K.-J. Kim, T. Okuno, H. Yoshikawa, A. Tsukamoto, T. Moriyama, and T. Ono, "Temperature dependence of spin-orbit effective fields in Pt/GdFeCo bilayers" Applied Physics Letters 110, 242405 (2017)
  3. S. Kim, P.-H. Jang, D.-H. Kim, M. Ishibashi, T. Taniguchi, T. Moriyama, K.-J. Kim, K.-J. Lee, and T. Ono, "Magnetic droplet nucleation with a homochiral Néel domain wall" Physical Review B 95, 220402 (2017)
  4. H. Kakizakai, K. Yamada, F. Ando, M. Kawaguchi, T. Koyama, S. Kim, T. Moriyama, D. Chiba, and T. Ono, "Influence of sloped electric field on magnetic-field-induced domain wall creep in a perpendicularly magnetized Co wire" Japanese Journal of Applied Physics 56, 050305 (2017)
  5. K. T. Yamada, T. Koyama, H. Kakizakai, K. Miwa, F. Ando, M. Ishibashi, K.-J. Kim, T. Moriyama, S. Ono, D. Chiba, and T. Ono, "Electrical control of superparamagnetism" Applied Physics Express 10, 013004 (2017)
  6. K.-J. Kim, Y. Yoshimura, W. -S. Ham, R. Ernst, Y. Hirata, T. Li, S. Kim, T. Moriyama, Y. Nakatani, and T. Ono, "Energy-efficient writing scheme for magnetic domain-wall motion memory" Applied Physics Express 10, 043002 (2017)
  7. H. Kakizakai, K. Yamada, F. Ando, M. Kawaguchi, T. Koyama, S. Kim, T. Moriyama, D. Chiba, and T. Ono, "Influence of sloped electric field on magnetic-field-induced domain wall creep in a perpendicularly magnetized Co wire" Japanese Journal of Applied Physics 56, 050305 (2017)
  8. K. Oda, T. Moriyama, M. Kawaguchi, M. Kamiya, K. Tanaka, K.-J. Kim, and T. Ono , "Exchange bias controlled by electric current: Interplay of Joule heating and the induced field" Japanese Journal of Applied Physics 55, 070304 (2016)
  9. T. Okuno, T. Taniguchi, S. Kim, S.-h. C. Baek, B.-G. Park, T. Moriyama, K.-J. Kim, T. Ono, "Temperature dependence of spin Hall magnetoresistance in W/CoFeB bilayer" Japanese Journal of Applied Physics 55, 080308 (2016)
  10. F. Ando, H. Kakizakai, T. Koyama, K. Yamada, M. Kawaguchi, S. Kim, K.-J. Kim, T. Moriyama, D. Chiba, and T. Ono, "Modulation of the magnetic domain size induced by an electric field" Applied Physics Letters 109, 022401 (2016)
  11. J. Stigloher, M. Decker, H. S. Körner, K. Tanabe, T. Moriyama, T. Taniguchi, H. Hata, M. Madami, G. Gubbiotti, K. Kobayashi, T. Ono, and C. H. Back, "Snell's Law for Spin Waves" Physical Review Letters 117, 037204 (2016)
  12. T. Okuno, K.-J. Kim, T. Tono, S. Kim, T. Moriyama, H. Yoshikawa, A. Tsukamoto, and T. Ono, "Temperature dependence of magnetoresistance in GdFeCo/Pt heterostructure" Applied Physics Express 9, 073001 (2016)
  13. H. Kakizakai, F. Ando, T. Koyama, K. Yamada, M. Kawaguchi, S. Kim, K.-J. Kim, T. Moriyama, D. Chiba, T. Ono, "Switching local magnetization by electric-field-induced domain wall motion" Applied Physics Express 9, 063004 (2016)
  14. K.-J. Kim, Y. Yoshimura, T. Okuno, T. Moriyama, S.-W. Lee, K.-J. Lee, Y. Nakatani, T. Ono, "Observation of asymmetry in domain wall velocity under transverse magnetic field" APL Materials 4, 032504 (2016)
  15. S. Takeshita, S. Matsuo, T. Tanaka, S. Nakaharai, K. Tsukagoshi, T. Moriyama, T. Ono, T. Arakawa, K. Kobayashi, "Anomalous behavior of 1/f noise in graphene near the charge neutrality point" Applied Physics Letters 108, 103106 (2016)
  16. K. Tanabe, R. Matsumoto, J.‐I. Ohe, S. Murakami, T. Moriyama, D. Chiba, K. Kobayashi, T. Ono, "Observation of magnon Hall‐like effect for sample‐edge scattering in unsaturated YIG" Physica Status Solidi (B) 253, 783 (2016)
  17. P. G. Gowtham, T. Moriyama, D. C. Ralph, and R. A. Buhrman, "Traveling surface spin-wave resonance spectroscopy using surface acoustic waves" Journal of Applied Physics 118, 233910 (2015)
  18. H. S. Korner, J. Stigloher, H. G. Bauer, H. Hata, T. Taniguchi, T. Moriyama, T. Ono, and C. H. Back, "Interfacial Dzyaloshinskii-Moriya interaction studied by time-resolved scanning Kerr microscopy" Physical Review B 92, 220413 (2015)
  19. Y. Yoshimura, K.-J. Kim, T. Taniguchi, T. Tono, K. Ueda, R. Hiramatsu, T. Moriyama, K. Yamada, Y. Nakatani, T. Ono, "Soliton-like magnetic domain wall motion induced by the interfacial Dzyaloshinskii-Moriya interaction" Nature Physics 12, 157 (2015)
  20. T. Moriyama, N. Matsuzaki, K.-J. Kim, I. Suzuki, T. Taniyama, and T. Ono, "Sequential write-read operations in FeRh antiferromagnetic memory " Applied Physics Letters 107, 122403 (2015)
  21. M. Nagata, T. Moriyama, K. Tanabe, K. Tanaka, D. Chiba, J-i Ohe, Y. Hisamatsu, T. Niizeki, H. Yanagihara, E. Kita, and T. Ono, "Spin motive force induced in Fe3O4 thin films with negative spin polarization" Applied Physics Express 8, 123001 (2015)
  22. S. Matsuo, S. Takeshita, T. Tanaka, S. Nakaharai, K. Tsukagoshi, T. Moriyama, T. Ono, and K. Kobayashi, "Edge mixing dynamics in graphene p?n junctions in the quantum Hall regime" Nature Communications 6, 8066 (2015)
  23. S. Takei, T. Moriyama, T. Ono, Y. Tserkovnyak, "Antiferromagnet-mediated spin transfer between metal and ferromagnet" Physical Review B 92, 020409R (2015)
  24. S. Matsuo, S. Nakaharai, K. Komatsu, K. Tsukagoshi, T. Moriyama, T. Ono, and K. Kobayashi, "Parity effect of bipolar quantum Hall edge transport around graphene antidots" Scientific Reports 5, 11723 (2015)
  25. N. Matsuzaki, T. Moriyama, M. Nagata, K.-J. Kim, I. Suzuki, T. Taniyama, T. Ono, "Current induced antiferro-ferromagnetic transition in FeRh nanowires" Japanese Journal of Applied Physics 54, 073002 (2015)
  26. H. Mizuno, T. Moriyama, M. Kawaguchi, M. Nagata, K. Tanaka, T. Koyama, D. Chiba, and T. Ono, "Ferromagnetic resonance measurements in sub-nanometer Fe films" Applied Physics Express 8, 073003 (2015)
  27. H. Hata, T. Moriyama, K. Tanabe, K. Kobayashi, R. Matsumoto, S. Murakami, J. Ohe, D. Chiba, and T. Ono, "Micromagnetic simulation of spin wave propagation in a ferromagnetic film with different thicknesses " Journal of the Magnetics Society of Japan 39, 151 (2015)
  28. T. Taniguchi, K.-J. Kim, T.i Tono, S. Kim, T. Moriyama, and T. Ono, "Dimensional crossover characterized by distribution of magnetic domain wall creep velocity" Applied Physics Express 8, 073004 (2015)
  29. T. Tono, T. Taniguchi, K.-J. Kim, T. Moriyama, A. Tsukamoto, and T. Ono, "Chiral magnetic domain wall in ferrimagnetic GdFeCo wires" Applied Physics Express 8, 073001 (2015)
  30. T. Taniguchi, K.-J. Kim, T. Tono, T. Moriyama, Y. Nakatani, T. Ono, "Precise control of magnetic domain wall displacement by a nanosecond current pulse in Co/Ni nanowires" Applied Physics Express 8, 073008 (2015)
  31. T. Moriyama, S. Yoon, and R.D. McMichael, "Ferromagnetic resonance measurement using stroboscopic magneto-optical Kerr effect" Journal of Applied Physics 117, 213908 (2015)
  32. T. Moriyama, S. Takei, M. Nagata, Y. Yoshimura, N. Matsuzaki, T. Terashima, Y. Tserkovnyak, and T. Ono, "Anti-damping spin transfer torque through epitaxial nickel oxide" Applied Physics Letters 106, 162406 (2015)
  33. M. Kawaguchi, T. Moriyama, T. Koyama, D. Chiba and T. Ono, "Layer thickness dependence of current induced effective fields in ferromagnetic multilayers" Journal of Applied Physics 117, 17C730 (2015)
  34. M. Madami, G. Gubbiotti, T. Moriyama, K. Tanaka, G. Siracusano, M. Carpentieri, G. Finocchio, S. Tacchi, T. Ono, and G. Carlotti, "Micro-focused Brillouin light scattering study of the magnetization dynamics driven by Spin Hall effect in a transversely magnetized rectangular NiFe nanowire" Journal of Applied Physics 117, 17D504 (2015)
  35. K. Ueda, K.-J. Kim, T. Taniguchi, T. Tono, T. Moriyama, and T. Ono, "In-plane field-driven crossover in the spin-torque mechanism acting on magnetic domain walls in Co/Ni" Physical Review B 91, 060405 (2015)
  36. K. Ueda, R. Hiramatsu, K.-J. Kim, T. Taniguchi, T. Tono, T. Moriyama, and T. Ono, "Temperature dependence of current-induced magnetic domain wall motion in an asymmetric Co/Ni nanowire " Japanese Journal of Applied Physics 54, 038004 (2015)
  37. R. Hiramatsu, K.-J. Kim, T. Taniguchi, T. Tono, T. Moriyama, S. Fukami, M. Yamanouchi, H. Ohno, Y. Nakatani, and T. Ono, "Localized precessional mode of domain wall controlled by magnetic field and dc current" Applied Physics Express 8, 023003 (2015)
  38. K.-J. Kim, R. Hiramatsu, T. Moriyama, H. Tanigawa, T. Suzuki, E. Kariyada, and T. Ono, "Tradeoff between low-power operation and thermal stability in magnetic domain-wall-motion devices driven by spin Hall torque" Applied Physics Express 7, 053003 (2014)
  39. K. Ueda, K.-J. Kim, Y. Yoshimura, R. Hiramatsu, T. Moriyama, D. Chiba, H. Tanigawa, T. Suzuki, E. Kariyada, and T. Ono, "Transition in mechanism for current-driven magnetic domain wall dynamics" Applied Physics Express 7, 053006 (2014)
  40. K. Tanabe, R. Matsumoto, J. Ohe, S. Murakami, T. Moriyama, D. Chiba, K. Kobayashi, and T. Ono, "Real-time observation of Snell's law for spin waves in thin ferromagnetic films" Applied Physics Express 7, 053001 (2014)
  41. T. Taniguchi, K.-J. Kim, Y. Yoshimura, T. Moriyama, H. Tanigawa, T. Suzuki, E. Kariyada, and T. Ono, "Different stochastic behaviors for magnetic field and current in domain wall creep motion " Applied Physics Express 7, 053005 (2014)
  42. K. Tanaka, T. Moriyama, M. Nagata, T. Seki, K. Takanashi, S. Takahashi, and T. Ono, "Linewidth broadening of optical precession mode in synthetic antiferromagnet" Applied Physics Express 7, 063010 (2014)
  43. M. Nagata, K. Tanabe, T. Moriyama, D. Chiba, J. Ohe, M. Myoka, T. Niizeki, H. Yanagihara, E. Kita, and T. Ono, "Ferromagnetic Resonance in Magnetite Thin Films" IEEE Transactions on Magnetics 50, 1400203 (2014)
  44. Y. Yoshimura, T. Koyama, D. Chiba, Y. Nakatani, S. Fukami, M. Yamanouchi, H. Ohno, K.-J. Kim, T. Moriyama, and T. Ono, "Effect of spin Hall torque on current induced precessional domain wall motion" Applied Physics Express 7, 033005 (2014)
  45. H. Hata, T. Taniguchi, H.-W. Lee, T. Moriyama, and T. Ono, "Spin-wave-induced domain wall motion in perpendicularly magnetized system" Applied Physics Express 7, 033001 (2014)
  46. M. Carpentieri, T. Moriyama, B. Azzerboni, and G. Finocchio, "Injection locking at zero field in two free layer spin-valves" Applied Physics Letters 102, 102413 (2013)
  47. T. Koyama, H. Hata, K.-J. Kim, T. Moriyama, H. Tanigawa, T. Suzuki, Y. Nakatani, D. Chiba, and T. Ono, "Current-Induced Magnetic Domain Wall Motion in a Co/Ni Nanowire with Structural Inversion Asymmetry" Applied Physics Express 6, 033001 (2013)
  48. T. Moriyama, G. Finocchio, M. Carpentieri, B. Azzerboni, D. C. Ralph, and R. A. Buhrman, "Phase locking and frequency doubling in spin-transfer-torque oscillators with two coupled free layers" Physical Review B 86, 060411R (2012)
  49. G. Jan, Y. J. Wang, T. Moriyama, Y. J. Lee, M. Lin, T. Zhong, R. Y. Tong, T. Torng, and P. K. Wang, "High Spin Torque Efficiency of Magnetic Tunnel Junctions with MgO/CoFeB/MgO Free Layer" Applied Physics Express 5, 093008 (2012)
  50. D. C. Ralph, Y.-T. Cui, L. Q. Liu, T. Moriyama, C. Wang, and R. A. Buhrman,, "Spin-transfer torque in nanoscale magnetic devices" Philosophical Transactions of the Royal Society A 369, 3617 (2011)
  51. L. Q. Liu, T. Moriyama, D. C. Ralph, and R. A. Buhrman,, "Spin torque ferromagnetic resonance induced by the Spin Hall Effect" Physical Review Letters 106, 036601 (2011)
  52. X. Fan, Y. Zhang, X. Kou, R. Cao, T. Moriyama, H. Zhang, J. Q. Xiao, "On-Chip Detection of Magnetic Dynamics for SingleMicroscopic Magnetic Dot" IEEE Transactions on Magnetics 47, 359 (2011)
  53. T. Moriyama, T. Gudmundsen, P. Y. Huang, L. Liu , D. A. Muller, R. A. Buhrman , D. C. Ralph,, "Tunnel Magnetoresistance and Spin Torque Switching in MgO-based Magnetic Tunnel Junctions with a Co/Ni Multilayer Electrode" Applied Physics Letters 97, 072513 (2010)
  54. L. Liu, T. Moriyama, D. C. Ralph, and R. A. Buhrman,, "Reduction of the spin-torque critical current by partially canceling the free layer demagnetization field" Applied Physics Letters 94, 122508 (2009)
  55. X. Fan, R. Cao, T. Moriyama, W. Wang, H. W. Zhang, J. Q. Xiao,, "Magnetic tunnel junction based microwave detector" Applied Physics Letters 95, 122501 (2009)
  56. T. Moriyama, X. Fan, Y. Q. Wen, H. W. Zhang, and J. Q. Xiao,, "FMR spectroscopy with very large precessioin cone angle in magnetic tunnel junctions" IEEE Transactions on Magnetics 45, 2047 (2009)
  57. R. Cao, T. Moriyama, W. G. Wang, X. Fan, J. Kolodzey, S. H. Chen, C. R. Chang, Y. Tserkovnyak, B. K. Nikolic, J. Q. Xiao,, "Spin-Polarized Transport and Dynamics in Magnetic Tunneling Structures" IEEE Transactions on Magnetics 45, 3434 (2009)
  58. R. Cao, X. Fan, T. Moriyama, and J. Q. Xiao,, "Nonlinear effective spin-mixing conductance in Pt/Ni80Fe20/Pt thin films" Journal of Applied Physics 105, 07C705 (2009)
  59. T. Moriyama, R. Cao, X. Fan, G. Xuan, B. K. Nikolic, Y. Tserkovnyak, J. Kolodzey, and J. Q. Xiao,, "Tunnel barrier enhanced voltage signal generated by magnetization precession of a single ferromagnetic layer" Physical Review Letters 100, 067602 (2008)
  60. Y. Tserkovnyak, T. Moriyama, and J. Q. Xiao,, "Tunnel-barrier enhanced voltage induced by magnetization dynamincs" Physical Review B 78, 020401R (2008)
  61. T. Moriyama, R. Cao, J. Q. Xiao, J. Lu, X. R. Wang, Q. Wen, and H. W. Zhang,, "Magnetization reversed by microwave in magnetic tunnel junctions" Journal of Applied Physics 103, 07A906 (2008)
  62. W. G. Wang, C. Ni, A. Rumaiz, Y. Wang, X. Fan, T. Moriyama, R. Cao, Q. Y. Wen, H. W. Zhang, and J. Q. Xiao,, "Real-time evolution of tunneling magnetoresistance during annealing in CoFeB/MgO/CoFeB magnetic tunnel junctions" Applied Physics Letters 92, 152501 (2008)
  63. W. G. Wang, K. J. Yeeb, D. H. Kimc, X. R. Wang, C. Ni, T. Moriyama, A. Mathew, R. Opilae, T. Zhu, and J. Q. Xiao,, "Microstructure, magnetic, and spin-dependent transport properties of (Zn,Cr)Te films fabricated by magnetron sputtering" Physical Review B 77, 155207 (2008)
  64. Y. Z. Liu, W. G. Wang, T. Moriyama, J. Q. Xiao, and Z. Zhang,, "Direct measurement of barrier asymmetry in AlOx/ZrOy magnetic tunnel junctions using off-axis electron holography" Physical Review B 75, 134420 (2007)
  65. T. Moriyama, R. Cao, J. Q. Xiao, J. Lu, X. R. Wang, Q. Wen, and H. W. Zhang,, "Microwave-assisted magnetization switching of Ni80Fe20 in magnetic tunnel junctions" Applied Physics Letters 90, 152503 (2007)
  66. M. J. Bonder, B. Srinivasan, G. Poirier, T. Moriyama, K. L. Kiick, and G. C. Hadjipanayis,, "In vitro heating with polyethylene glycol coated Fe nanoparticles" Ieee Transactions on Magnetics 42, 3602 (2006)
  67. W. G. Wang, C. Ni, T. Moriyama, J. Wan, E. Nowak, and J. Q. Xiao,, "Spin-polarized transport in hybrid (ZnCr)Te/Al2O3/Co magnetic tunnel junctions" Applied Physics Letters 88, 202501 (2006)
  68. T. Moriyama, C. Ni, W. G. Wang, X. Zhang, and J. Q. Xiao,, "Tunneling magnetoresistance in (001)-oriented FeCo/MgO/FeCo magnetic tunneling junctions grown by sputtering deposition" Applied Physics Letters 88, 222503 (2006)
  69. T. Moriyama, S. Mitani, T. Seki, T. Shima, K. Takanashi, and A. Sakuma,, "Magnetic tunnel junctions with L1(0)-ordered FePt alloy electrodes" Journal of Applied Physics 95, 6789 (2004)
  70. S. Mitani, T. Moriyama, and K. Takanashi,, "Fe/MgO/FeCo(100) epitaxial magnetic tunnel junctions prepared by using in situ plasma oxidation" Journal of Applied Physics 93, 8041 (2003)
  71. S. Mitani, T. Moriyama, and K. Takanashi,, "Structure and tunnel magnetoresistance in Fe/MgF2/Co junctions with an oxide seed layer on an Fe bottom electrode" Journal of Applied Physics 91, 7200 (2002)
  72. T. Moriyama, S. Mitani, and K. Takanashi,, "Tunnel Magnetoresistance in Fe/MgO/MgF2/Co Junctions" Journal of the Magnetics Society of Japan 26, 405 (2002)
  73. 森山貴広, 小野輝男, "反強磁性体スピントロニクスとデバイスへの展望" 日本磁気学会誌「まぐね」 11, 143 (2016)
  74. 森山貴広, 小野輝男, "反強磁性体へのスピン注入およびスピントルク効果" 新学術領域研究ナノスピン変換科学「ニュースレター」 1, 14 (2015)
  75. 河口真志, 森山貴広, 小野輝男, "強磁性金属多層膜における電流誘起有効磁場のホール測定による決定" ナノ学会会報 13, 3 (2014)
  76. internal,


Update: Sep 20,2017