Copyright (C) 2014 Hamaya Laboratory, All rights reserved.
大阪大学大学院基礎工学研究科システム創成専攻電子光科学領域 浜屋研究室
〒560-8531 大阪府豊中市待兼山町1-3 E303-05
研究成果:
国際学会

-2017年-

M. Yamada, Y. Fujita, M.Tsukahara, S. Yamada, K. Sawano, and K. Hamaya:
"Donor-Induced Spin Relaxation in n-Ge"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017.


S. Oki, Y. Fujita, M.Tsukahara, S. Yamada, K. Sawano, and K. Hamaya:
"Local Magnetoresistance in a Co2FeAl0.5Si0.5/n+-Ge lateral spin valve"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017
.

M. Ishikawa, T. Oka, Y. Fujita, H. Sugiyama, Y. Saito, and K. Hamaya:
"Spin Relaxation Mechanism in Heavily Doped n-type Silicon"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017.


K. Arima, Y. Togami, S. Yamada, and K. Hamaya:
"Anomalous Hall effect of Mn2CoAl films grown by low-temperature molecular beam epitaxy"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017.


M. Tsukahara, Y. Fujita, M. Yamada, S. Yamada, K. Sawano, and K. Hamaya:
"Giant Enhancement of Nonlocal Spin Signals in n-Ge using Co2FeAl0.5Si0.5 Electrodes"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017.


M. Ikawa, M. Kawano, S. Sakai, H. Sato, S. Yamada, and K. Hamaya:
"Spin Transport in Fully Epitaxial CoFe/p-Ge/Fe3Si Structures"
The 9th International school and conference on Spintech, Fukuoka, Japan, June 4-8, 2017.


Shuichiro Sakai, Makoto Kawano, Masahiko Ikawa, Hiroshi Sato, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Low-temperature growth of all-epitaxial CoFe/Ge/Fe3Si layers on Si for vertical-type semiconductor spintronic devices"
The 10th International Conference on Silicon Epitaxy and heterostructures, Warwick, UK, May 14-19, 2017.


Kohei Kudo, Hidenori Higashi, Mario Nakano, Shinya Yamada, Keisuke Yamamoto, Takeshi Kanashima, Isao Tsunoda, Hiroshi Nakashima, and Kohei Hamaya:
"Electrical properties of pseudo-single-crystalline Ge film grown on SiNx/SiO2 substrates"
The 10th International Conference on Silicon Epitaxy and heterostructures, Warwick, UK, May 14-19, 2017.

-2016年-

Michihiro Yamada, Yuichi Fujita, Shinya Yamada, Takeshi Kanashima, Kentarou Sawano, and Kohei Hamaya:
"Spin absorption affect at ferromagnetic alloy/n+-Ge interfaces"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.

Soichiro Oki, Takayuki Kurokawa, Syuta Honda, Shinya Yamada, Takeshi Kanashima, Hiroyoshi Itoh, and Kohei Hamaya:
"Robust spin-current injection in lateral spin valves with two-terminal Co2FeSi spin injectors"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.

Makoto Kawano, Kohei Santo, Masahiko Ikawa, Shuichiro Sakai, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Hole spin transport in epitaxial p-Ge(111) layers"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.


Yuichi Fujita, Michihiro Yamada, Shinya Yamada, Kentarou Sawano, Takeshi Kanashima, and Kohei Hamaya:
"Short spin diffusion length of n+-Ge at low temperatures"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.


Kento Yamasaki, Keisuke Arima, Togami Yuki, Tsukahara Makoto, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Magnetic and electrical properties of MBE-grown Mn2CoAl films"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.


A. M. Spiesser, H. Saito, Y. Fujita, S. Yamada, K. Hamaya, S. Yuasa and R. Jansen:
"Spin accumulation up to 10 meV in Si non-local devices with MgO/Fe tunnel contacts"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016


S. E. Glover, T. Saerbeck, B. Kuerbanjiang, Z. Nedelkoski, D. Kepaptsoglou, A. Ghasemi, S. Yamada, C. Burrows, Q. M. Ramasse, P. J. Hasnip, K. Hamaya, A. Hirohata, V. Lazarov, T.P. Hase, and G. Bell
"Nanometer resolved profiles of half-metallic full Heusler alloy thin films determined from polarised neutron"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.


B. Kuerbanjiang, Z. Nedelkoski, D. Kepaptsoglou, A. Ghasemi, S. E. Glover, S. Yamada, A. Sanchez, Q. M. Ramasse, T. P. Hase, G. Bell, K. Hamaya, A. Hirohata and V. Lazarov:
"Atomic and Electronic study of Co2FeAl0.5Si0.5/Ge(111) interface"
61st Anuual Magnetism and Magnetic Materials Conference (MMM 2016), New Orleans(Louisiana), October 31-November 4, 2016.


S. Oki, M. Kawano, Y. Fujita, M. Yamada, S. Yamada, T. Kanashima, and K. Hamaya:
"Spin transport in n-Ge and p-Ge"
International workshop on nano-spin conversion science and quantum spin dynamics, Tokyo, Japan, October 12-15, 2016.


Shinya Yamada, Tomoyasu Taniyama, and Kohei Hamaya:
"Exchange coupling induced by epitaxial B2-FeRh layers grown on ferromagnets"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Soichiro Oki, Shinya Yamada, Takeshi Kanashima, Yukio Nozaki, and Kohei Hamaya:
"Damping constant modulation of Fe3Si by a giant pure spin current"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Makoto Kawano, Kohei Santo, Masahiko Ikawa, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Spin transport in p-Ge up to 125 K using a Ge/Fe3Si structure"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Yuichi Fujita, Michihiro Yamada, Shinya Yamada, Kentarou Sawano, Takeshi Kanashima, and Kohei Hamaya:
"Electrical spin injection and detection at room temperature in n-Ge based lateral spin valves with Co2FeSi0.5Al0.5/n+-Ge Schottky tunnel contacts"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Keisuke Arima, Michihiro Yamada, Yuichi Fujita, Kentarou Sawano, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Electrical properties in Co2FeSi1-xAlx/n+-Ge contacts with phosphorous δ-doping and silicon-layer insertions"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Kento Yamasaki, Keisuke Arima, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Molecular beam epitaxy of Mn2CoAl films on MgAl2O4 (100)"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Takayuki Kurokawa, Soichiro Oki, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Pure spin current transport in a Kondo alloy Cu(Fe)"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Takayasu Oka, Mizue Ishikawa, Yuichi Fujita, Shinya Yamada, Takeshi Kanashima, Yoshiaki. Saito, and Kohei Hamaya:
"Enhancement of room-temperature spin signals in n+-Si-based lateral spin devices"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Kohei Santo, Makoto Kawano, Masahiko Ikawa, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Spin-dependent transport in all-epitaxial Fe3Si/Ge/ Fe3Si spin valves"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Shuichiro Sakai, Masahiko Ikawa, Makoto Kawano, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Epitaxial growth of Fe3Si films on low-temperature-grown Ge layers"
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids, Kobe, Japan, August 8-11, 2016.


Masahiko Ikawa, Shuichiro Sakai, Makoto kawano, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Magnetic properties of Fe3Si films on low-temperature-grown germanium layers"
The 18th International Conference on Crystal Growth and Epitaxy, Nagoya, Japan, August 7-12, 2016.


Kenji Kasahara, Hidenori Higashi, Mario Nakano, Yuta Nagatomi, Keisuke Yamamoto, Hiroshi Nakashima, and Kohei Hamaya:
"Effect of post annealing on hole mobility of pseudo-single-crystalline germanium thin-film-transistors on glass substrate"
7th International Symposium on Control of Semiconductor Interfaces/International SiGe Technology and Device Meeting, Nagoya, Japan, June 7-11, 2016


Michihiro Yamada, Yuichi Fujita, Shinya Yamada, Kentarou Sawano, and Kohei Hamaya:
"Control of electrical properties in Heusler-alloy/Ge Schottky tunnel contacts formed by phosphorous δ-doping with Si-layer insertion"
7th International Symposium on Control of Semiconductor Interfaces/International SiGe Technology and Device Meeting, Nagoya, Japan, June 7-11, 2016.


Yuichi Fujita, Michihiro Yamada, Shinya Yamada, Kentarou Sawano, Takeshi Kanashima, and Kohei Hamaya:
"Room-temperature electrical spin injection and detection in n-Ge through Co2Fe0.5SiAl0.5/n+-Ge Schottky tunnel contacts"
7th International Symposium on Control of Semiconductor Interfaces/International SiGe Technology and Device Meeting, Nagoya, Japan, June 7-11, 2016.


Hidenori Higashi, Mario Nakano, Kenji Kasahara, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"High hole mobility in pseudo-single-crystalline germanium films on flexible substrates"
2016 MRS Spring Meeting, EP-14, Phoenix, Alizona, USA, March 28-April 1, 2016.


Takayuki Kurokawa, Soichiro Oki, Shinya Yamada, Takeshi Kanashima, Tomoyasu Taniyama, and Kohei Hamaya:
"Nonlocal spin transport in a Kondo alloy Cu(Fe) in lateral spin valves with Co2FeSi electrodes"
2016 Joint MMM-intermag Conference, GD-08, San Diego, California, USA, January 11-15, 2016.


Shinya Yamada, Kohei Tanikawa, Junya Hirayama, Takeshi Kanashima, Tomoyasu Taniyama, and Kohei Hamaya:
"Exchange coupling in epitaxially grown multilayers with B2-FeRh"
2016 Joint MMM-intermag Conference, GS-06, San Diego, California, USA, January 11-15, 2016.


-2015年-

Yuichi Fujita, Takayasu Oka, Yuta Nagatomi, Keisuke Yamamoto, Michihiro Yamada, Kentarou Sawano, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Low-temperature Fabrication of a Gate Stack Structure for Ge-based Spin-MOSFET"
2015 International Workshop on DIELECTRIC THIN FILMS FOR FUTURE ELECTRON DEVICES -SCIENCE AND TECHNOLOGY- (2015 IWDTF), P-5, Tokyo, Japan, November 2-4, 2015.


Takeshi Kanashima, Hiroshi Nohira, Masato Zenitaka, Taro Kobayashi, Riku Yamashiro, Shinya Yamada,
and Kohei Hamaya:

"Study of Epitaxial La2O3 High-k/Ge(111) Interface by X-ray Photoelectron Spectroscopy"
2015 International Workshop on DIELECTRIC THIN FILMS FOR FUTURE ELECTRON DEVICES -SCIENCE AND TECHNOLOGY- (2015 IWDTF), P-4, Tokyo, Japan, November 2-4, 2015.


Kento Yamasaki, Soichiro Oki, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Spin dependent Peltier effect in a lateral spin-valve device with epitaxial Heusler-compound electrodes"
20th International Conference on Magnetism (ICM2015), Th.H-P2, Barcelona, Spain, July 5-10, 2015.


Makoto Kawano, Kohei Santo, Soichiro Oki, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Spin transport through high-quality epitaxial Ge/Fe3Si heterostructures in Cu-based lateral spin valves"
20th International Conference on Magnetism (ICM2015), MO.D-P19, Barcelona, Spain, July 5-10, 2015.

Kohei Hamaya, Yuichi Fujita, Makoto Kawano, Kenji Kasahara, and Shinya Yamada:
"Germanium-based spintronics with high-quality Heusler compounds"
The 1st 【ImPACT】International Symposium on Spintronic Memory, Circuit and Strage, Tokyo, Japan, June 21-22,2015.

Kento Yamasaki, Soichiro Oki, Shinya Yamada, Takeshi Kanashima, and Kohei Hamaya:
"Spin dependent Peltier effect in Co2FeSi/Cu lateral spin-valve devices"
New Perspectives in Spintronics and Mesoscopic Physics, PS-38, Tokyo, Japan, June 10-12,2015.

Makoto Kawano, Kohei Santo, Soichiro Oki, Shinya Yamada, Takeshi Kanashima and Kohei Hamaya:
"Electrical spin injection and detection across epitaxial Ge/Fe3Si heterointerfaces"
New Perspectives in Spintronics and Mesoscopic Physics, PS-36, Tokyo, Japan, June 10-12,2015.

-2014年-

Yoshiaki Saito, Mizue Ishikawa, Tetsufumi Tanamoto, Tomoaki Inokuchi, Hideyuki Sugiyama, Kohei Hamaya, and Nobuki Tezuka:
"Correlation between amplitude of spin accumulation signals investigated by Hanle effect measurement and effective junction barrier height in CoFe/MgO/n+-Si junctions"
59th Anuual Magnetism and Magnetic Materials Conference (MMM 2014), ES-05, Honolulu, Hawaii, November 3-7,2014.

Mizue Ishikawa, Hideyuki Sugiyama, Tomoaki Inokuchi, Tetsufumi Tanamoto, Kohei Hamay, Nobuki Tezuka, and Yoshiaki Saito:
"Influence of interface roughness in CoFe/MgO/n+-Si junctions on spin accumulation and spin transport signals"
59th Anuual Magnetism and Magnetic Materials Conference (MMM 2014), FB-12, Honolulu, Hawaii, November 3-7,2014.


R. Ohshima, A. Sakai, Y. Ando, T. Shinjo, K. Hamaya, K. Kawahara, H. Ago, and M. Shiraishi:
"Spin-charge conversion in CVD-grown single-layer graphene at room temperature"
59th Anuual Magnetism and Magnetic Materials Conference (MMM 2014), FB-03, Honolulu, Hawaii, November 3-7,2014.

M. Kawano, S. Yamada, M. Miyao, and K. Hamaya:
"Low-temperature grown Ge1-xSnx layers on a metallic sillicide"
International SiGe Technology and Device Meeting (ISTDM 2014), P3, Sigapore, June 2-4, 2014.

H. Higashi, Y. Fujita, M. Kawano, J. Hirayama, S. Yamada, J.-H Park, T. Sadoh, M. Miyao, and K. Hamaya:
"Effect of Sn-doped Ge insertion layers on epitaxial growth of ferromagnetic Fe3Si films on a flexible substrate"
International SiGe Technology and Device Meeting (ISTDM 2014), 7.3, Sigapore, June 2-4, 2014.

J. Hirayama, K. Tanikawa, M. Kawano, S. Yamada, M. Miyao, and K. Hamaya:
"An all epitaxial Fe3Si/FeSi/Co2FeSi trilayer grown by room-temperature molecular beam epitaxy"

IEEE International Magnetics Conference (Intermag 2014), CT-6, Dresden, Germany, May 4-8, 2014.

K. Kasahara, Y. Fujita, S. Yamada, K. Sawano, M. Miyao, and K. Hamaya:
"Generation and detection of pure spin current in n-Ge using L21-ordered Co2FeSi electrodes"
IEEE International Magnetics Conference (Intermag 2014), BE-6, Dresden, Germany, May 4-8, 2014.

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