Hayato Miyagawa Associate Professor, Doctor of Engineering Department of Advanced Materials Science Faculty of Engineering, Kagawa University

Field of Specialization:

• Magnetic Materials, Magnetic Thin Films, Multilayers
• Diluted Magnetic Semiconductors, III-V Semiconductor Superlattices
• Magnetic Analyses using X-ray, Spin Alignment Simulation
• Patterned Nano-structures

Profile:

• B.S. : Department of Materials, Faculty of Engineering, University of Tokyo (1997.3)
• M.S. : Department of Metallurgical Engineering, Faculty of Engineering, University of Tokyo (1999.3)
• Dr. Eng. : Department of Metallurgical Engineering, Faculty of Engineering, University of Tokyo (2002.3)
• Research Associate : Institute of Industrial Science, University of Tokyo (2002.4)
• Research Associate : RIKEN (2002.4)
• Postdoctoral Fellow : Japan Synchrotron Research Institute (2002.8-2003.3)
• Postdoctoral Fellow : Japanese Society of the Promotion of Science (2003.4-2004.4)
• Research Assistant : Faculty of Engineering, Kagawa University (2004.4-2006.9)
• Lecturer : Faculty of Engineering, Kagawa University (2006.10-2009.3)
• Visiting Scientist : Department of Materials Science and Engineering, Massachusettes Institute of Technology (Ross group, 2007.9-2008.9)
• Associate Professor : Faculty of Engineering, Kagawa University (2009.4-)
• Adjunct Lecturer : Kagawa National Colledge of Technology (2009.10-)

Research Subjects:

1. Study of Magnetic Properties by means of X-ray Magnetic Dichroism and/or X-ray Magnetic Scattering Method
2. Nano-structures and Magnetism of Rare-Earth/Transition-Metal Hybrid Multilayers.
3. Spin Orientations and Electro-Optical Properties in Rare-Earth Doped Diluted Magnetic Semiconductors.
4. Fabrication and Characterization of Nano-scaled Patterned Structures

Publications:

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. Formation and uniformity of double circular erosion patterns on SiO2 dielectric target in radio freqencty magnetron sputtering, J. Jpn. Soc. Precision Eng. 76, 2 (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
    

Membership in Societies:

• The Physical Society of Japan (JPS)
• The Japan Institute of Metals (JIM)
• The Japanese Society for Synchrotron Radiation Research(JSSRR)
• Material Research Society (MRS)
• Japanese Material Research Society (MRS-J)