Electrical Transport Properties and Spin Injection in Co2FeAl0.5Si0.5/GaAs Junctions

被引：8

作者：

Saito, Tatsuya ^{[1
]}

Tezuka, Nobuki ^{[1
]}

Sugimoto, Satoshi ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2011年 / 47卷 / 10期

基金：

日本科学技术振兴机构;

关键词：

Co2FeAl0.5Si0.5; full-Heusler alloy; spin injection; spintronics; RELAXATION; SILICON;

D O I：

10.1109/TMAG.2011.2153189

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigated the electrical transport properties in Co2FeAl0.5Si0.5 (CFAS)/GaAs junctions. From current density-voltage characteristics, the formation of a schottky tunnel barrier in the CFAS/GaAs interface was indicated. Moreover, junction resistance of 2 x 10(-9) Omega . m(2) which is adequate for high magnetoresistance ratio attributable to high spin injection efficiency was obtained. Comparing the bias dependencies of conductance with samples, which CFAS ordering is lower, indicated that L2(1) ordered CFAS contributes to electrical transport. Finally, the spin injection signal was observed with 3-terminal Hanle measurement, and spin relaxation time was estimated to be 380 ps at 5 K.

引用

页码：2447 / 2450

页数：4

共 50 条

[21] The role of chemical structure on the magnetic and electronic properties of Co2FeAl0.5Si0.5/Si(111) interface
Kuerbanjiang, Balati
Nedelkoski, Zlatko
Kepaptsoglou, Demie
Ghasemi, Arsham
Glover, Stephanie E.
Yamada, Shinya
Saerbeck, Thomas
Ramasse, Quentin M.
Hasnip, Philip J.
Hase, Thomas P. A.
Bell, Gavin R.
Hamaya, Kohei
Hirohata, Atsufumi
Lazarov, Vlado K.
APPLIED PHYSICS LETTERS, 2016, 108 (17)
[22] Optimization of exchange bias in Co2FeAl0.5Si0.5 Heusler alloy layers
Hirohata, Atsufumi
Izumida, Keisuke
Ishizawa, Satoshi
Sagar, James
Nakayama, Tadachika
JOURNAL OF APPLIED PHYSICS, 2014, 115 (17)
[23] Structure and transport properties of current-perpendicular-to-plane spin valves using Co2FeAl0.5Si0.5 and Co2MnSi Heusler alloy electrodes
Furubayashi, T.
Kodama, K.
Nakatani, T. M.
Sukegawa, H.
Takahashi, Y. K.
Inomata, K.
Hono, K.
JOURNAL OF APPLIED PHYSICS, 2010, 107 (11)
[24] Correlations between structural, electronic transport, and magnetic properties of Co2FeAl0.5Si0.5 Heusler alloy epitaxial thin films
Gabor, M. S.
Belmeguenai, M.
Petrisor, T., Jr.
Ulhaq-Bouillet, C.
Colis, S.
Tiusan, C.
PHYSICAL REVIEW B, 2015, 92 (05)
[25] Spin-polarized tunneling spectroscopy of fully epitaxial magnetic tunnel junctions using Co2FeAl0.5Si0.5 Heusler alloy electrodes
Sukegawa, Hiroaki
Wang, Wenhong
Shan, Rong
Nakatani, Tomoya
Inomata, Koichiro
Hono, Kazuhiro
PHYSICAL REVIEW B, 2009, 79 (18)
[26] Interfacial and Magnetic Properties of Pt/Co2FeAl0.5Si0.5/MgO Multilayers With Perpendicular Magnetic Anisotropy
Yu, Haijie
Wu, Yong
Li, Lu
Xu, Xiaoguang
Miao, Jun
Jiang, Yong
IEEE TRANSACTIONS ON MAGNETICS, 2014, 50 (11)
[27] Enhancement of the Spin Hall Angle by Interdiffusion of Atoms in Co2FeAl0.5Si0.5/n-Ge Heterostructures
Kaneta-Takada, Shingo
Yamada, Michihiro
Sato, Shoichi
Arai, Shoma
Anh, Le Duc
Hamaya, Kohei
Ohya, Shinobu
PHYSICAL REVIEW APPLIED, 2020, 14 (02):
[28] Effect of annealing on the structure and magnetic properties of Co2FeAl0.5Si0.5 thin films on Ge(111)
Kuerbanjiang, Balati
Love, Christopher
Kepaptsoglou, Demie
Nedelkoski, Zlatko
Yamada, Shinya
Ghasemi, Arsham
Ramasse, Quentin M.
Hamaya, Kohei
Cavill, Stuart A.
Lazarov, Vlado K.
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 748 : 323 - 327
[29] Structural And Magnetic Properties Of High Energy Ball Milled Co2FeAl0.5Si0.5 Heusler Alloy
Chandra, Aarti R.
Jain, Vishal
Jain, Vivek Kumar
Jain, Rakesh
Lakshmi, N.
Venugopalan, K.
61ST DAE-SOLID STATE PHYSICS SYMPOSIUM, 2017, 1832
[30] Giant tunnel magnetoresistance at room temperature for junctions using full-heusler Co2FeAl0.5Si0.5 electrodes
Tezuka, Nobuki
Ikeda, Naomichi
Sugimoto, Satoshi
Inomata, Koichiro
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (17-19): : L454 - L456

← 1 2 3 4 5 →