Oral presentation

10. Spintronics and Magnetics » 10.4 Semiconductors, organic, optical, and quantum spintronics

[19p-S2-1~15] 10.4 Semiconductors, organic, optical, and quantum spintronics

Fri. Sep 19, 2014 1:15 PM - 5:15 PM S2 (S2)

△：Young Scientist Oral Presentation Award Applied
▲：English Presentation
▼：Both Award Applied and English Presentation

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1:15 PM - 1:30 PM

[19p-S2-1] Room temperature and high current density spin injection into (110) GaAs QWs using Fe/AlO_x contacts

^○Nobuhide Yokota¹, Yohei Aoshima¹, Kazuhiro Ikeda¹, Nozomi Nishizawa², Hiro Munekata², Hitoshi Kawaguchi¹ (NAIST¹, Tokyo Inst. of Tech.²)

1:30 PM - 1:45 PM

▲ [19p-S2-2] Spin injection from epitaxially grown Fe into an InAs quantum well

Yoshiaki Hashimoto¹, Taketomo Nakamura¹, Yasuhiro Iye¹, ^○Shingo Katsumoto¹ (ISSP, Univ. Tokyo¹)

1:45 PM - 2:00 PM

▼ [19p-S2-3] Electrical detection of nuclear magnetic resonance in GaAs using transient oblique Hanle signals

^○Takafumi Akiho¹, Yuya Ebina¹, Masafumi Yamamoto¹, Tetsuya Uemura¹ (Division of Electronics for Informatics, Hokkaido Univ.¹)

2:00 PM - 2:15 PM

▼ [19p-S2-4] Observation of Reflection and Tunnel Effect in Photoinduced Spin Waves by Spatio-Temporally Resolved Imaging

^○(D)Isao Yoshimine¹, Takuya Satoh², Tsutomu Shimura¹ (Univ. of Tokyo¹, Kyushu Univ.²)

2:15 PM - 2:30 PM

▼ [19p-S2-5] Observation of spin relaxation in Be-doped InGaAsP by time-resolved pump and probe measurement (10-300 K)

^○Hao Wu¹, Ryo Harasawa¹, Naoki Yamamoto¹, Takanori Aritake¹, Shulong Lu², Lian Ji², Atsushi Tackeuchi¹ (Waseda Univ.¹, SINANO-CAS²)

2:30 PM - 2:45 PM

△ [19p-S2-6] Observation of spin relaxation in Be doped GaAs by pump and probe reflectance measurement

^○Takanori Aritake¹, Ryo Harasawa¹, Naoki Yamamoto¹, Hao Wu¹, Shulong Lu², Pan Dai², Atsushi Tackeuchi¹ (Waseda Univ.¹, SINANO-CAS²)

2:45 PM - 3:00 PM

△ [19p-S2-7] Picosecond spin relaxation of band to carbon acceptor transition in low-temperature grown GaAs

^○(M2)Kazuki Honda¹, Yuya Yasue¹, Masaki Asakawa¹, Lu Shulong², Dai Pan², Atsushi Tackeuchi¹ (Waseda Univ.¹, SINANO-CAS²)

Break 15:00～15:15 (3:00 PM - 3:15 PM)

3:15 PM - 3:30 PM

▼ [19p-S2-8] Modulation of spin precession frequency by spin relaxation anisotropy in a (110) GaAs/AlGaAs quantum well

^○Asuka Aoki¹, Makoto Kohda¹, Jun Ishihara², Yuzo Ohno³, Fumihiro Matsukura^2,4, Hideo Ohno^2,4, Junsaku Nitta¹ (Tohoku Univ.¹, RIEC, Tohoku Univ.², Tsukuba Univ.³, WPI-AIMR, Tohoku Univ.⁴)

3:30 PM - 3:45 PM

▲ [19p-S2-9] Detection of the exact persistent spin helix state using drift spin transport in GaAs quantum well

^○Yoji Kunihashi¹, Haruki Sanada¹, Hideki Gotoh¹, Koji Onomitsu¹, Makoto Kohda², Junsaku Nitta², Tetsuomi Sogawa¹ (NTT BRL¹, Tohoku Univ.²)

3:45 PM - 4:00 PM

▼ [19p-S2-10] Determination of spin-orbit interaction coefficients under persistent and inverse persistent spin helix states in an InGaAs/InAlAs quantum well

^○Kohei Yoshizumi¹, Atsuya Sasaki¹, Makoto Kohda¹, Junsaku Nitta¹ (Tohoku Univ.¹)

4:00 PM - 4:15 PM

▲ [19p-S2-11] Room temperature spin relaxation in InGaAs quantum wells

^○Ken Morita^1,2, Ryota Kurosawa¹, Tatsuya Oda², Yoshihiro Ishitani¹, Takahiro Kitada², Toshiro Isu² (Chiba Univ.¹, Tokushima Univ.²)

4:15 PM - 4:30 PM

[19p-S2-12] Spatial mapping of spin polarization in InGaAs quantum wells using Monte Carlo simulation

^○(M1)Ryota Kurosawa¹, Ken Morita¹, Yoshihiro Ishitani¹ (Chiba Univ.¹)

4:30 PM - 4:45 PM

[19p-S2-13] Microscopic pump-probe measurement of electron spin relaxation time in (110) InGaAs/InAlAs MQWs

^○Nobuhide Yokota¹, Yusuke Yasuda¹, Kazuhiro Ikeda¹, Hitoshi Kawaguchi¹ (NAIST¹)

4:45 PM - 5:00 PM

▲ [19p-S2-14] Spin-injection dynamics via tunneling from InGaAs quantum wells into quantum dots; dependence of tunneling-barrier thickness

^○(M2)Takafimi Yamamura¹, Xiaojie Yang¹, Takayuki Kiba¹, Junichi Takayama¹, Subagyo Agus¹, Kazuhisa Sueoka¹, Akihiro Murayama¹ (Graduate School of Information Science and Technology, Hokkaido University¹)

5:00 PM - 5:15 PM

▲ [19p-S2-15] Magnetization Process of the n-type Ferromagnetic Semiconductor (In,Fe)As:Be Studied by X-ray Magnetic Circular Dichroism

^○Shoya Sakamoto¹, Anh Le Duc¹, Hai Pham Nam¹, Goro Shibata¹, Yukio Takahashi¹, Yukiharu Takeda², Masaki Kobayashi³, Tsuneharu Koide³, Masaaki Tanaka¹, Atsushi Fujimori¹ (Univ. of Tokyo¹, JAEA², IMSS³)