The Tunable Electronic, Magnetic and Curie Temperature by Co Doping Fe2-xCox MnAl Alloys
文献类型：期刊论文
| 作者 | Wei, Xiao-Ping1; Ma, Sheng-Ming1; Sun, Xiao-Wei1; Gao, Peifeng2; Zhang, Ya-Ling3
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| 刊名 | ACTA PHYSICA POLONICA A
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| 出版日期 | 2019-09-01 |
| 卷号 | 136期号:3页码:520-526 |
| ISSN号 | 0587-4246 |
| DOI | 10.12693/APhysPolA.136.520 |
| 通讯作者 | Wei, Xiao-Ping(weixp2008@gmail.com) |
| 英文摘要 | Using the spin-polarized relativistic Korringa-Kohn-Rostoker method, we study the electronic, magnetic, and Curie temperature of Fe2-xCoxMnAl alloys. Results indicate that the Fe2-xCoxMnAl alloys preserve the ferromagnetic metallic nature, and the spin polarization is close to 80% when the Co concentration attains to 30%. The calculated total magnetic moment increases linearly as the increase of Co doping concentration, only small changes are observed for Fe(A), Mn(B), and Fe(C) atomic magnetic moments, while for the Al atom, the magnetic moment always nearly approach to zero. The Heisenberg exchange calculations imply that the Co(A)-Mn(B) exchange plays a leading role in interactions, in contrast to the Mn(B)-Mn(B) exchange in pure Fe2MnAl. We further calculate the sum of exchange coupling parameters between the constituents, and evaluate the Curie temperature of Fe2-xCoxMnAl alloys. It is found that the Mn(B)-Mn(B) and Fe/Co(A)-Mn(B) coupling parameters increase evidently with the increase of Co content, and then leading to the Curie temperature above room temperature when the Co doping concentration is over 60%, the change is also in good consistence with calculated total magnetic moment. |
| WOS关键词 | EXCHANGE INTERACTIONS ; HEUSLER ALLOYS ; FE2MNSI |
| 资助项目 | National Natural Science Foundation of China[11864021] ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; China Postdoctoral Science Foundation[2018M633604] ; Fundamental Research Funds for the Central Universities[lzujbky-2018-it01] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000495445400021 |
| 出版者 | POLISH ACAD SCIENCES INST PHYSICS |
| 资助机构 | National Natural Science Foundation of China ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; China Postdoctoral Science Foundation ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://119.78.100.186/handle/113462/141591]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wei, Xiao-Ping |
| 作者单位 | 1.Lanzhou Jiaotong Univ, Sch Math & Phys, Lanzhou 730070, Gansu, Peoples R China 2.Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Western Disaster & Environm, MoE, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Xiao-Ping,Ma, Sheng-Ming,Sun, Xiao-Wei,et al. The Tunable Electronic, Magnetic and Curie Temperature by Co Doping Fe2-xCox MnAl Alloys[J]. ACTA PHYSICA POLONICA A,2019,136(3):520-526. |
| APA | Wei, Xiao-Ping,Ma, Sheng-Ming,Sun, Xiao-Wei,Gao, Peifeng,&Zhang, Ya-Ling.(2019).The Tunable Electronic, Magnetic and Curie Temperature by Co Doping Fe2-xCox MnAl Alloys.ACTA PHYSICA POLONICA A,136(3),520-526. |
| MLA | Wei, Xiao-Ping,et al."The Tunable Electronic, Magnetic and Curie Temperature by Co Doping Fe2-xCox MnAl Alloys".ACTA PHYSICA POLONICA A 136.3(2019):520-526. |
入库方式： OAI收割
来源：近代物理研究所
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