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

9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids (PASPS9)国際学会にて、M2の大塚、M2の植田、D2のHiep、共同研究者のAnh氏、共同研究者のTu氏が下記の発表を行いました。

<O-18>Giant spin-valve effect in (Ga,Fe)Sb/(In,Fe)As ferromagnetic p-n junctions

°Tomohiro Otsuka, Yuto Arakawa, Masaaki Tanaka, Pham Nam Hai

<O-25>High-Temperature Ferromagnetism in Heavily Fe-doped Ferromagnetic Semiconductor (Ga,Fe)Sb

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

<P1-1> Spontaneous spin-split band structure of n-type ferromagnetic semiconductor (In,Fe)As observed by tunneling spectroscopy

°Le Duc Anh, Pham Nam Hai, Masaaki Tanaka

(Young Researcher Best Poster Awardを受賞)

<P1-15> Spin transport in nanoscale silicon channels

°Duong Dinh Hiep, Masaaki Tanaka, Pham Nam Hai

<P1-48> Growth and characterization of Bi1-xSbx thin films on GaAs(111) substrates

°Yugo Ueda, Pham Nam Hai

第63回応用物理学会春季学術講演会で、B4の長峰君、M1の植田君と共同研究者のAnh氏が下記の発表を行いました。

[21a-W241-5] Epitaxial growth of Bi_1-xSb_x spin-Hall alloy on GaAs(111) substrates
〇植田 裕吾、ファム ナムハイ

[19p-P1-71] Magnetic properties of (In,Fe)As grown on vicinal GaAs substrates
〇長峰 諒英、吉田 統彦、田中 雅明、ファム ナム ハイ

[19p-W241-3] Observation of spontaneous spin-splitting in the band structure of n-type ferromagnetic semiconductor (In,Fe)As
〇Le Anh Duc、Pham Nam Hai、Tanaka Masaaki

第62回応用物理学会春季学術講演会で下記の3件の発表を行います。

[11a-A13-6] 雨宮智宏, 顧之琛, 石川篤, 庄司雄哉, ファム ナム ハイ, 田中雅明, 水本哲弥, 田中拓男, 荒井滋久.” フェムト秒レーザーによるYIG光磁気造形を利用した磁気光学回路”

[招待講演][14a-D2-2] Duc Anh Le, Nam Hai Pham, Yuichi Kasahara, Yoshihiro Iwasa, Masaaki Tanaka. [講演奨励賞記念講演] “Electrical modulation of ferromagnetism via controlling the wavefunction in n-type ferromagnetic semiconductor (In,Fe)As quantum wells”

[14a-D2-10]  Thanh Tu Nguyen, Pham Nam Hai, Le Duc Anh, Masaaki Tanaka. “Magneto-optical and magneto-transport characteristics of heavily Fe-doped ferromagnetic semiconductor (Ga,Fe)Sb”

Pham准教授が2015年3月2-6日に米国サンアントニオで開催される米国物理学会APS March meetingで下記の発表を行います。

Session S31: Focus Session: Spin-Dependent Phenomena in Semiconductors: Magnetic Semiconductors

S31.00007 : Visible-light electroluminescence in Mn-doped GaAs light-emitting diodes
Daiki Maruo , Pham Nam Hai , Masaaki Tanaka

S31.00012: Room temperature reddish-yellow electroluminescence in manganese-doped silicon light-emitting diodes
Pham Nam Hai , Daiki Maruo , Le Duc Anh , Masaaki Tanaka