| Large violation of the Wiedemann–Franz law in Heusler, ferromagnetic, Weyl semimetal Co2MnAl | |
| Robinson,Robert A.1; Min,Lujin2; Lee,Seng Huat3; Li,Peigang4; Wang,Yu1,3; Li,Jinguo5; Mao,Zhiqiang1,3 | |
| Corresponding Author | Mao,Zhiqiang() |
| 2021-08-23 | |
| Source Publication | Journal of Physics D: Applied Physics
 |
| ISSN | 0022-3727 |
| Volume | 54Issue:45 |
| Abstract | Abstract The Wiedemann–Franz (WF) law relates the electronic component of the thermal conductivity to the electrical conductivity in metals through the Lorenz number. The WF law has proven to be remarkably robust, however violations have been observed in many topological materials. In this work, we report thermoelectric measurements conducted on Heusler, ferromagnetic, Weyl semimetal Co2MnAl which shows a drastic, temperature dependent violation of the WF law below 300 K. We then discuss our result in the context of known physical explanations for WF law violation. Both the magnitude and temperature dependence of the violation in Co2MnAl are extreme, indicating that there may be more than one effect contributing to the violation in this system. |
| Keyword | Wiedemann–Franz law Heusler alloy topological Weyl semimetal thermoelectric Wiedemann–Franz law violation ferromagnet |
| DOI | 10.1088/1361-6463/ac1cb6 |
| Language | 英语 |
| WOS ID | IOP:0022-3727-54-45-ac1cb6 |
| Publisher | IOP Publishing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166706 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Mao,Zhiqiang |
| Affiliation | 1.Department of Physics, Pennsylvania State University, University Park, PA 16802, United States of America 2.Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, United States of America 3.2D Crystal Consortium, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, United States of America 4.Department of Physics and Engineering Physics, Tulane University, New Orleans, LA 70118, United States of America 5.Superalloys Division, Institute of Metal Research, Chinese Academy of Sciences, 110016 Shenyang, People’s Republic of China |
| Recommended Citation GB/T 7714 | Robinson,Robert A.,Min,Lujin,Lee,Seng Huat,等. Large violation of the Wiedemann–Franz law in Heusler, ferromagnetic, Weyl semimetal Co2MnAl[J]. Journal of Physics D: Applied Physics,2021,54(45). |
| APA | Robinson,Robert A..,Min,Lujin.,Lee,Seng Huat.,Li,Peigang.,Wang,Yu.,...&Mao,Zhiqiang.(2021).Large violation of the Wiedemann–Franz law in Heusler, ferromagnetic, Weyl semimetal Co2MnAl.Journal of Physics D: Applied Physics,54(45). |
| MLA | Robinson,Robert A.,et al."Large violation of the Wiedemann–Franz law in Heusler, ferromagnetic, Weyl semimetal Co2MnAl".Journal of Physics D: Applied Physics 54.45(2021). |
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