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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 AuthorTang, Xinfeng(tangxf@whut.edu.cn)
2022-04-21
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Pages10
AbstractUnsaturated 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.
KeywordNbP Nernst thermoelectric power factor polycrystalline quasi-linear magnetoresistance Weyl semimetal states
Funding OrganizationNational Key Research and Development Program of China ; Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI10.1002/adfm.202202143
Indexed BySCI
Language英语
Funding ProjectNational 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 AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000789584100001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/172489
Collection中国科学院金属研究所
Corresponding AuthorTang, Xinfeng
Affiliation1.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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