Theoretical study on the origin of anomalous temperature-dependent electric resistivity of ferromagnetic semiconductor

被引：1

作者：

Shinya, Hikari ^{[1
,2
,3
,4
,5
]}

Fukushima, Tetsuya ^{[5
,6
]}

Sato, Kazunori ^{[5
,7
]}

Ohya, Shinobu ^{[1
,2
,8
]}

Katayama-Yoshida, Hiroshi ^{[1
,5
]}

机构：

[1] Univ Tokyo, CSRN, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Dept Elect Engn & Informat Syst, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138656, Japan

[3] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan

[4] Tohoku Univ, CSIS, 2-1-1 Katahira,Aobo Ku, Sendai, Miyagi 9808577, Japan

[5] Osaka Univ, CSRN, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan

[6] Natl Inst Adv Ind Sci & Technol, 1-1-1 Umezono, Tsukuba, Ibaraki 3058568, Japan

[7] Osaka Univ, Grad Sch Engn, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

[8] Univ Tokyo, Inst Nano Quantum Informat Elect NanoQuine, 4-6-1 Komaba,Meguro Ku, Tokyo 1538505, Japan

来源：

APL MATERIALS | 2023年 / 11卷 / 11期

基金：

日本科学技术振兴机构;

关键词：

COHERENT-POTENTIAL APPROXIMATION; CURIE-TEMPERATURE; P-TYPE; GAMNAS; SPINTRONICS; CONDUCTION; (GA;

D O I：

10.1063/5.0165352

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Employing Korringa-Kohn-Rostoker Green's function methodology, our investigation elucidates the previously obscure origins of the anomalous temperature-dependent electrical resistivity behavior of (Ga,Mn)As ferromagnetic semiconductors. Phonon and magnon excitations induced by temperature effects are addressed via the coherent potential approximation, while the Kubo-Greenwood formula is employed to compute transport properties. Consequently, the anomalous temperature-dependent electrical resistivity arising from the ferromagnetic-paramagnetic transition is successfully replicated. Our examination of electronic structures and magnetic interactions reveals pivotal roles played by antisite defects and interstitial Mn atoms in governing this behavior. As this approach enables both the estimation of temperature-dependent transport properties and the assessment of underlying mechanisms from a microscopic standpoint, it holds significant potential as a versatile tool across diverse fields.

引用

页数：7

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