| Weyl Semimetal States Generated Extraordinary Quasi-Linear Magnetoresistance and Nernst Thermoelectric Power Factor in Polycrystalline NbP | |
| Liu, Wei1; Wang, Zhaohui1; Wang, Jinhua2,3; Bai, Hui1; Li, Zhi1; Sun, Jinchang1; Zhou, Xingyuan1; Luo, Jiangfan1; Wang, Wei1; Zhang, Cheng1; Wu, Jinsong1; Sun, Yan4; Zhu, Zengwei2,3; Zhang, Qingjie1; Tang, Xinfeng1 | |
| Corresponding Author | Tang, Xinfeng(tangxf@whut.edu.cn) |
| 2022-04-21 | |
| Source Publication | ADVANCED FUNCTIONAL MATERIALS
 |
| ISSN | 1616-301X |
| Pages | 10 |
| Abstract | Unsaturated and extremely large magnetoresistance (MR), as well as the giant Nernst effect, are intriguing transport phenomena in Weyl semimetals, which are technically appealing for potential applications in magneto-electric sensors and transverse thermoelectric conversion. The prominent properties are originated from Weyl semimetal states, i.e., the coexistence of electron and hole pockets combined with linear band dispersion. However, previous studies have been focused on small-sized single crystals, rendering the practical applications of Weyl semimetals. Here, it is reported an unsaturated, quasi-linear MR as well as a very large Nernst power factor PFxy in the prepared centimeter-sized and polycrystalline Weyl semimetal NbP. An extraordinary MR of approximate to 2 x 10(4)% is observed below 60 K with a magnetic field up to 55 T and persists to elevated temperatures. The unusual quasi-linear MR behavior is explained by the theory of classical linear MR arising from structural disorder. The polycrystalline NbP exhibits state-of-the-art PFxy that reaches a maximum value of 74.81 mu W cm(-1) K-2 at 9 T and 220 K, which is 1.5 times larger than its longitudinal thermoelectric power factor PFxx. Given that polycrystalline Weyl semimetal, NbP is suitable for large-scale production, the results pave the way for its practical applications in magneto-electric sensors and transverse thermoelectric conversion. |
| Keyword | NbP Nernst thermoelectric power factor polycrystalline quasi-linear magnetoresistance Weyl semimetal states |
| Funding Organization | National Key Research and Development Program of China ; Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| DOI | 10.1002/adfm.202202143 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2019YFA0704900] ; Natural Science Foundation of China[91963120] ; Natural Science Foundation of China[52150710537] ; Natural Science Foundation of China[12004123] ; Fundamental Research Funds for the Central Universities[WUT: 2021III016GX] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000789584100001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/172489 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tang, Xinfeng |
| Affiliation | 1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China 2.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China 3.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Wei,Wang, Zhaohui,Wang, Jinhua,et al. Weyl Semimetal States Generated Extraordinary Quasi-Linear Magnetoresistance and Nernst Thermoelectric Power Factor in Polycrystalline NbP[J]. ADVANCED FUNCTIONAL MATERIALS,2022:10. |
| APA | Liu, Wei.,Wang, Zhaohui.,Wang, Jinhua.,Bai, Hui.,Li, Zhi.,...&Tang, Xinfeng.(2022).Weyl Semimetal States Generated Extraordinary Quasi-Linear Magnetoresistance and Nernst Thermoelectric Power Factor in Polycrystalline NbP.ADVANCED FUNCTIONAL MATERIALS,10. |
| MLA | Liu, Wei,et al."Weyl Semimetal States Generated Extraordinary Quasi-Linear Magnetoresistance and Nernst Thermoelectric Power Factor in Polycrystalline NbP".ADVANCED FUNCTIONAL MATERIALS (2022):10. |
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