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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
Bi0.8Sb0.2 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



[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

Spintech IX 国際学会発表

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



[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


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.



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

MBE 2016国際学会発表

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



[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