| Thermoelectric performance of a metastable thin-film Heusler alloy | |
| Hinterleitner, B.1,2; Knapp, I.1,2; Poneder, M.1,2; Shi, Yongpeng3,4; Mueller, H.1; Eguchi, G.1; Eisenmenger-Sittner, C.1; Stoeger-Pollach, M.1,5; Kakefuda, Y.6; Kawamoto, N.6; Guo, Q.6,7; Baba, T.6,7; Mori, T.6,7,8; Ullah, Sami3; Chen, Xing-Qiu3,4; Bauer, E.1,2 | |
| 通讯作者 | Bauer, E.(bauer@ifp.tuwien.ac.at) |
| 2019-12-05 | |
| 发表期刊 | NATURE
 |
| ISSN | 0028-0836 |
| 卷号 | 576期号:7785页码:85-+ |
| 摘要 | Thermoelectric materials transform a thermal gradient into electricity. The efficiency of this process relies on three material-dependent parameters:the Seebeck coefficient, the electrical resistivity and the thermal conductivity, summarized in the thermoelectric figure of merit. A large figure of merit is beneficial for potential applications such as thermoelectric generators. Here we report the thermal and electronic properties of thin-film Heusler alloys based on Fe2V0.8W0.2Al prepared by magnetron sputtering. Density functional theory calculations suggest that the thin films are metastable states, and measurements oft he power factor-the ratio of the Seebeck coefficient squared divided by the electrical resistivity-suggest a high intrinsic figure of merit for these thin films. This may arise from a large differential density of states at the Fermi level and a Weyl-like electron dispersion close to the Fermi level, which indicates a high mobility of charge carriers owing to linear crossing in the electronic bands. |
| 资助者 | Christian Doppler Laboratory for Thermoelectricity ; JST, CREST ; National Science Fund for Distinguished Young Scholars ; National Natural Science Foundation of China ; Science Challenging Project ; Shanghai Nuclear Engineering Research & Design Institute |
| DOI | 10.1038/s41586-019-1751-9 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Christian Doppler Laboratory for Thermoelectricity ; JST, CREST[JPMJCR15Q6] ; JST, CREST[JPMJCR19Q4] ; National Science Fund for Distinguished Young Scholars[51725103] ; National Natural Science Foundation of China[51671193] ; Science Challenging Project[TZ2016004] ; Shanghai Nuclear Engineering Research & Design Institute[2018ZX06002004] |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000501599200045 |
| 出版者 | NATURE PUBLISHING GROUP |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/136247 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Bauer, E. |
| 作者单位 | 1.Tech Univ Wien, Inst Solid State Phys, Vienna, Austria 2.Tech Univ Wien, Christian Doppler Lab Thermoelect, Vienna, Austria 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China 5.Tech Univ Wien, Univ Serv Ctr Transmiss Electron Microscopy, Vienna, Austria 6.NIMS, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki, Japan 7.NIMS, CFSN, Tsukuba, Ibaraki, Japan 8.Univ Tsukuba, Tsukuba, Ibaraki, Japan |
| 推荐引用方式 GB/T 7714 | Hinterleitner, B.,Knapp, I.,Poneder, M.,et al. Thermoelectric performance of a metastable thin-film Heusler alloy[J]. NATURE,2019,576(7785):85-+. |
| APA | Hinterleitner, B..,Knapp, I..,Poneder, M..,Shi, Yongpeng.,Mueller, H..,...&Bauer, E..(2019).Thermoelectric performance of a metastable thin-film Heusler alloy.NATURE,576(7785),85-+. |
| MLA | Hinterleitner, B.,et al."Thermoelectric performance of a metastable thin-film Heusler alloy".NATURE 576.7785(2019):85-+. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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