第６5回応用物理学会春季学術講演会で、博士研究員のTin氏、D3のHiep君、D2のKhang君、B4の白倉君、共同研究者のNguyen氏、小林氏、および坂本氏が下記の発表を行います。

[17p-D104-3] Room-temperature colossal spin Hall effect in topological insulator Bi_0.9Sb_0.1(012) thin films for ultra-low-power spin-orbit-torque switching
〇Nguyen HuynhDuy Khang、Yugo Ueda、Hai Pham Nam

[17p-P10-89] Inverse spin valve effect in nano-scale Si-based spin-valve devices
〇Dinhhiep Duong、Masaaki Tanaka、Nam Hai Pham

[17p-D104-4] Temperature dependence of the colossal spin hall effect in a BiSb(001)/MnAs bi-layer
〇Takanori Shirokura、Kenichiro Yao、Pham Nam Hai

[20a-D104-3] Electrical control of ferromagnetism in the n-type ferromagnetic semiconductor (In,Fe)Sb with high Curie temperature
〇Tu Thanh Nguyen、Nam Hai Pham、Duc Anh Le、Masaaki Tanaka

[20a-D104-9] Magneto-thermopower in Ferromagnetic Semiconductor In_1-xFe_xSb
〇CONG TINH BUI、CHRISTINA GARCIA、NGUYEN THANH TU、MASAAKI TANAKA、PHAM NAM HAI

[20a-D104-1] Effect of Be Doping on the Electronic Structure of n-Type Ferromagnetic Semiconductor (In,Fe)As
〇MASAKI KOBAYASHI、HISAO KIUCHI、HIDEHARU NIWA、JUN MIYAWAKI、ATSUSHI FUJIMORI、LE DUC ANH、PHAM NAM HAI、MASAAKI TANAKA、MASAHARU OSHIMA、YOSHIHISA HARADA

[20a-D104-7] Magnetization process of the insulating ferromagnetic semiconductor (Al,Fe)Sb
〇Shoya Sakamoto、Duc Anh Le、Nam Hai Pham、Yukiharu Takeda、Masaki Kobayashi、Ryosho Nakane、Yuki Wakabayashi、Yosuke Nonaka、Keisuke Ikeda、Zhendong Chi、Yuxuan Wan、Masahiro Suzuki、Yuji Saitoh、Hiroshi Yamagami、Masaaki Tanaka、Atsushi Fujimori

D3のHiep君、D1のKhang君、共同研究者のAnh氏および田中教授がJunjirou Kanamori Memorial International Symposium – New Horizon of Magnetism- (Sep. 27-29 2017)に下記の発表を行いました。

[P71] Tuning of Magnetoconductance by Electrical Control of Band Alignment in a n⁺-(In,Fe)As/p⁺-InAs Esaki Diode
Le Duc Anh, Pham Nam Hai and Masaaki Tanaka

[P82] Inverse spin-valve effect in spin-valve devices with nanoscale Si channels
D. D. Hiep, M. Tanaka, and P. N. Hai

[P83] Magnetic and structural properties of MnGa thin films grown on
Bi_0.8Sb_0.2 topological insulator
N. H. D. Khang, Y. Ueda, and P. N. Hai

[S2] (Invited) Recent progress and topics in semiconductor spintronics and ferromagnetic semiconductors
M. Tanaka, S. Ohya, L.D. Anh, N.T. Tu, I. Muneta, and P.N. Hai

D3のHiep君が国際学会SSDM2017で下記の研究成果を発表しました。

[PS-12-08] Inverse spin-valve effect in MBE-grown nanoscale Si spin-valve devices
D. H. Duong, M. Tanaka, N. H. Pham

Pham准教授がThe 29th International Conference on Defects in Semiconductors(ICDS-29)の国際学会で下記の招待講演を行いました。

[ThA3-I2 (Invited)] Fe-doped ferromagnetic semiconductors for high-performance semiconductor spin devices
Pham Nam Hai, Tomohiro Ostuka, Munehiko Yoshida, Nguyen Thanh Tu, Le Duc Anh, and Masaaki Tanaka

9th International School and Conference on Spintronics and Quantum Information Technology (Spintech IX)の国際学会にD1のKhang君、共同研究者のAnh氏とNguyen氏が下記の発表を行いました。

[A 65] MnGa thin films with perpendicular magnetic anisotropy grown on BiSb topological insulator.

Nguyen Huynh Duy Khang, Yugo Ueda, Pham Nam Hai

 [A 15] Tuning of  Magnetoconductance by electrical control of band alignment in n+(In,Fe)As/p+InAs Esaki diode.

Le Duc Anh, Pham Nam Hai, Masaaki Tanaka

 [B 76] High-temperature ferromagnetism in n-type and p-type Fe-doped ferromagnetic semiconductors.

Nguyen Thanh Tu, Pham Nam Hai, Le Duc Anh, Masaaki Tanaka

第６４回応用物理学会春季学術講演会で、D2のHiep君、D1のKhang君、M2の大塚君、B4の八尾君、共同研究者のNguyen氏が下記の発表を行います。

[14p-P10-12] Electrical properties of Bi1-xSbx spin Hall thin films grown on GaAs(111)A substrates
〇八尾 健一郎、植田 裕吾、ゲィン フン ユイ カン、ファム ナム ハイ

[14p-P10-84] Spin valve effect in Si-based spin valve devices with a nano-scale Si channel
〇Duong Dinhhiep、Tanaka Masaaki、Pham Namhai

[14p-P10-87] Growth and characterization of MnGa thin films on BiSb topological insulator
〇Khang Nguyen HuynhDuy、Hai Pham Nam

[15a-501-1] Bias and temperature dependence of giant magnetoresistance in (In,Fe)As/(Ga,Fe)Sb spin diode
〇大塚 友絢、荒川 雄斗、西嶋 健人、田中 雅明、ファム ナムハイ

[15a-501-2] High-temperature ferromagnetism in a new n-type Fe-doped ferromagnetic semiconductor (In,Fe)Sb
〇Nguyen Tu Thanh、Pham Nam Hai、Le Duc Anh、Tanaka Masaaki

一方、米国物理学会(APS)にて、共同研究者のAnh氏が下記の発表を行います。

E42.00008: Observation of large spin splitting in the conduction band of n-type ferromagnetic semiconductor (In,Fe)As
Le Duc Anh , Pham Nam Hai , Masaaki Tanaka

M2の大塚君と吉田君、共同研究者のAnh氏が米国で開催される61st Annual Conference on Magnetism and Magnetic Materialsで、下記の発表を行います。

[EF-06] Giant spin-valve effect in (Ga,Fe)As/(In,Fe)As spin diodes.

Y. Otsuka, Y. Arakawa, M. Tanaka, P. Nam Hai.

[ES-07] High Temperature Ferromagnetism in (In,Fe)As Grown on Vicinal GaAs Susbtrates.

M. Yoshida, A. Nagamine, M. Tanaka, P. Nam Hai.

[EE-01] (Invited) N-type carrier-induced ferromagnetic semiconductor and electrical control of ferromagnetism by wavefunction engineering.

L. D. Anh, P. N. Hai, Y. Kasahara, Y. Iwasa, M. Tanaka.

一方、Pham准教授はHanoiで開催されるInternational Workshop on Advanced Materials and Nanotechnology 2016 (IWAMN 2016)で、下記の招待講演を行います。

(Invited) High-performance Fe-doped ferromagnetic semiconductors.

P. N. Hai, L. D. Anh, N. T. Tu, M. Tanaka.

SSDM2016国際学会で、D2のHiep君が下記の発表を行いました。

[PS-12-03] Spin-valve Effect in Nanoscale Si-based Devices with Ferromagnetic Electrodes
○ D.H. Duong , M. Tanaka, N.H. Pham

M2の植田君と共同研究者のTu氏がフランスのモンペリエに開催されている国際学会MBE2016 (19th International Conference on Molecular Beam Epitaxy)で下記の研究成果を発表します。

[Th‐B11] Epitaxial Growth and Characterization of Bi1‐xSbx Spin Hall Alloy on GaAs(111) Substrates
Yugo Ueda and Pham Nam Hai

[Tu‐C4] High‐Temperature Ferromagnetism in Heavily Fe‐doped Ferromagnetic Semiconductor (Ga,Fe)Sb
Nguyen Thanh Tu, Pham Nam Hai, Le Duc Anh, and Masaaki Tanaka

第77回応用物理学会秋季学術講演会で、M1の荒川君、共同研究者のAnh氏、共同研究者の坂本氏が下記の発表を行います。

[14a-C41-12] Giant spin dependent transport characteristics in Fe-doped ferromagnetic semiconductor p-n junctions
〇Yuto Arakawa、Tomohiro Otsuka、Masaaki Tanaka、Pham Nam Hai

[14p-C41-2] Bias-dependent magneto-conductance in n-type ferromagnetic semiconductor (In,Fe)As-based Esaki diodes
〇Anh Duc Le、Nam Hai Pham、Masaaki Tanaka

[14a-C41-10] Electronic Structure of the p-type Ferromagnetic Semiconductor (Ga,Fe)Sb
〇(D)Shoya Sakamoto、Thanh Tu Nguyen、Yukiharu Takeda、Shin-ichi Fujimori、Nam Hai Pham、Duc Anh Le、Yuki Wakabayashi、Goro Shibata、Masafumi Horio、Keisuke Ikeda、Yuji Saitoh、Hiroshi Yamagami、Masaaki Tanaka、Atsushi Fujimori