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宮川 勇人(MIYAGAWA Hayato)

博士(工学)

香川大学 工学部 准教授

工学部材料創造工学科 光・電子情報学分野

Last Updated: 2009/8/1

オフィス 香川大学 工学部 材料創造工学科
〒761-0396 香川県高松市林町2217-20 (工学部 2号館 8階)
PHONE: 087-864-2396
FAX: 087-864-2438
EMAIL: miyagawa<a>eng.kagawa-u.ac.jp

専門分野 磁性薄膜材料、磁性半導体、X線磁性解析
学歴・職歴 東京大学工学部材料学科卒業 (1997.3)
東京大学大学院金属工学専攻修士課程修了 (1999.3)
東京大学大学院金属工学専攻博士課程修了 (2002.3)
東京大学生産技術研究所博士研究員 (2002.4)
理化学研究所播磨研究所連携研究員 (2002.4)
高輝度光科学研究センター協力研究員(2002.8-2003.3)
日本学術振興会特別研究員 (東京大学生産技術研究所所属) (2003.4-2004.3)
香川大学工学部助手 (2004.4-2006.9)
香川大学工学部講師 (2006.10-2009.3)
米国マサチューセッツ工科大学(MIT)海外研究員 (DMSE Rossグループ, 2007.9-2008.9)
香川大学工学部准教授 (2009.4-)
香川高等専門学校 非常勤講師 (2009.10-)
学位 博士(工学)(東京大学 2002)
研究テーマ
  1. X線領域磁気円二色性・磁気散乱法による磁性材料評価
  2. 希土類元素/遷移金属元素多層膜の構造と磁性
  3. 希薄元素ドーピング半導体中の磁気スピンと光特性に関する研究
  4. ナノ周期パタンド・ストラクチャーの作製と評価
実験技術
(試料作製・評価)
  1. 半導体超格子・磁性半導体・磁性多層金属膜の作製
    • 分子線エピタキシー(MBE)法による超高真空蒸着成膜
    • スパッタリング蒸着法、電子線(EB)蒸着法
  2. バルク合金・結晶試料の作製
    • 高周波溶解、アークプラズマ溶融溶解
    • 真空封入熱処理
  3. 磁気特性・電気特性評価
    • 振動試料磁力計(VSM)、交流勾配磁力計(AGM)
    • 超伝導量子干渉磁束計(SQUID、MPMS)
    • 磁気モーメント配向シミュレーション(MSEG)
  4. 顕微手法による構造評価
    • 電子線顕微鏡(TEM,SEM)、蛍光エネルギー分散法マッピング(EDS)
    • 原子間力顕微鏡(AFM), 走査トンネル顕微鏡(STM), 磁気力顕微鏡(MFM)
  5. X線による構造評価
    • 高分解能X線回折(HR-XRD)、X線反射率法 (XR)
    • 超格子シミュレーション・プログラムXDによる解析
  6. 放射光解析手段
    • 構造解析:EXAFS, XAS, XRD
    • 磁性解析:MCD, Magnetic Diffraction, Magnetic Compton Scattering
主要著書・論文等
  1. Fabrication of Transparent Antifouling Thin Films with Fractal Structure by Atmospheric Pressure Cold Plasma Deposition, Langmuir 28 (2012) pp 17761
  2. Fabrication of Al doped ZnO films using atmospheric pressure cold plasma, Thin Solid Films 522 (2012) 324
  3. Molecular vibrational dynamics in polyvinyl alcohol studied by femtosecond coherent Anti-Stokes Raman spectroscopy, Chem. Phys. Lett. 553 (2012) 26
  4. Magnetization Dynamics in Vortex-Imprinted Ni80Fe20/Ir20Mn80 Square Elements, IEEE Magnetic Letters 3 (2012) 3500204
  5. Structure and magnetic hysteresis of Gd/Fe multilayers patterned into periodic line patterns, Trans. Mater. Res. Soc. Jpn 37 (2012) 197
  6. Electrical and Optical Properties of GaNAs/GaAs MQW p-i-n Junctions, Trans. Mater. Res. Soc. Jpn 37 (2012) 193
  7. Fracture Behavior Transition by change of Strain Rate in Dislocation-induced Si Steels, Materials Science Forum 706-709 (2012) pp 2187
  8. Measurement of a Pauli and Orbital Paramagnetic State in Bulk Gold Using X-Ray Magnetic Circular Dichroism Spectroscopy, Phys Rev Lett, 108 (2012) 047201
  9. Electron Spin Resonance Observation of Bias-Temperature Stress-Induced Interface Defects at NO/N2O-Annealed Chemical-Vapor-Deposition SiO2 / (100) p-Si Substrates, Jpn. J. Appl. Phys. 50 (2011) 114101
  10. Effects of Mg doping on optical and electrical properties of GaNAs multiple quantum wells, Physica Status Solidi (c) 8 (2011) 420
  11. Incoherent interaction of propagating spin waves with precessing magnetic moments, Physical Review B, 81 (2010) 092404
  12. SiO2誘電体ターゲットの高周波マグネトロンスパッタリングにおける2重円環状侵食パターンの形成および均一性の検討, 精密工学会誌, 76巻, 2号 (2010) 178
  13. Dependence of Al concentration on Al Doped ZnO Films Prepared by Using Atmospheric Pressure Cold Plasma, Frontier of Applied Plasma Technology, 3, 1, (2010) pp.23
  14. Enhancement and suppression of THz emission by Fabry-Perot cavity structure with a nonlinear optical crystal, Applied Optics, 48, 36 (2009) 6934
  15. Double circular erosion patterns on dielectric target in magnetron sputtering, Review of Scientific Instruments 80 (2009) 104704
  16. Structure and magnetic properties of Gd/Fe layers grown by MBE, J. Crystal Growth 311 (2009) 2143
  17. The effects of GaAs interval layer on GaNAs/GaAs superlattice structure grown by RF-MBE using modulated N radical beam sequence, Physica Status Solidi (c)5 (2008) 2750
  18. MBE Growth of Diluted Magnetic Semiconductor Gadolinium-doped GaAs, Trans. Mater. Res. Soc. Jpn 33 (2008) 299
  19. Optimization of Well Width and N Content for Optical Properties of GaNAs/GaAs Multiple Quantum Well Grown by RF-Molecular Beam Epitaxy, Jpn. J. Appl. Phys. 47 (2008) 2991
  20. Slow dephasing and local field effects of exciton-biexciton transition in β-ZnP2 detected by femtosecond degenerate four-wave mixing, J. Luminescence 124 (2007) 321
  21. Structural and optical studies of (AlAs)m/(GaAs)n type-I ultra short-period superlattices with fractional monolayer, J. Crystal Growth 301 (2007) 168
  22. GaNAs/GaAs multiple quantum well grown by modulated N radical beam sequence of RF-MBE: Effect of growth interruption, J. Crystal Growth 301 (2007) 583
  23. Transmission Spectra of Terahertz Region Hybrid One-Dimensional Photonic Crystals, AIP conf. proc. 902 (2007) 79
  24. Development of an Ultra-Thin 100 μm Diametrical Coaxial Cable using a Coating Technique, Proc. 11th Int. Conf. Precision Engineering (2006) 339
  25. Growth of GaNAs/GaAs multiple quantum well by molecular beam epitaxy using modulated N radical beam source, Jpn. J. Appl. Phys. 45 (2006) 3540
  26. Ultrafast exciton dynamics in (AlAs)0.3/(GaAs)0.7 ultrashort-period superlattice, Jpn. J. Appl. Phys. 45 (2006) 3652
  27. Structural Analyses of Fractional Monolayer (GaAs)m/(AlAs)n Superlattices by X-ray Resonant/Off-Resonant Scattering, Jpn. J. Appl. Phys. 45 (2006) 3548
  28. Hard X-ray Photoelectron Emission Microscopy as Tool for Studying Buried Layers, Jpn. J. Appl. Phys. 45 (2006) 1886
  29. Depth profile of spin and orbital magnetic moments in a subnanometer Pt film on Co, Phys. Rev. B 72 (2005) 054430
  30. 100μm-Diametrical Thin Coaxial Cable for Elecctronics and Mechatronics in Upcoming Information Society, Proc. 2004 Int. Sympo. Micro-NanoMechatronics Human Sci. Jpn, (2004) 109
  31. Direct Observation of Ferromagnetic Spin Polarization in Gold Nanoparticles, Phys. Rev. Lett. 93 (2004) 116801
  32. Temperature Dependence of X-ray Magnetic Circular Dichroism in Rare Earth Iron Garnets (Rare Earth = Gd, Dy and Sm), Physica Scripta T115 (2004) 616
  33. X-ray magnetic circular dichroism study of gold nanoparticles protected by polymer, J. Magn. Magn. Mater. 272 (2004) e1183
  34. Temperature Dependence of the Rare-Earth Sublattice Magnetic Moments in R3Fe5O12 (R=Sm, Gd, and Dy) investigated by X-ray Magnetic Circular Dichroism, Tran. Mater. Res. Soc. Jpn, 29 (2004) 1501
  35. Lifetime-broadening-suppressed/free XANES spectroscopy by high-resolution resonant inelastic x-ray scattering, Phys. Rev. B 68 (2003) 045122
  36. Magnetic Compton profiles of DyCo4B and DyCo3B2, J. Phys. IV France 104 (2003) 503
  37. Orbital and spin moments in SmFe2 studied by means of white-x-ray magnetic diffraction, J. Phys. Condens. Matter, 14 (2002) 9525
  38. Temperature Dependence of Magnetic Compoton Profile in DyCo5, Material Research Society Symp. Proc. 658 (2000) GG5.10
  39. X-ray Magnetic Bragg Scattering of SmFe2, Jpn. J. Appl. Phys. 38 (1999) Suppl. 38-1, 440
    ほか
主要所属学会 日本物理学会、日本金属学会、日本放射光学会、MRS(Material Research Society)、日本MRS

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