气候变化领域集成服务门户(CCPortal): Large Nernst power factor over a broad temperature range in polycrystalline Weyl semimetal NbP

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DOI	10.1039/c8ee02077a
	Large Nernst power factor over a broad temperature range in polycrystalline Weyl semimetal NbP
	Fu C.; Guin S.N.; Watzman S.J.; Li G.; Liu E.; Kumar N.; Süb V.; Schnelle W.; Auffermann G.; Shekhar C.; Sun Y.; Gooth J.; Felser C.
发表日期	2018
ISSN	17545692
起始页码	2813
结束页码	2820
卷号	11 期号:10
英文摘要	The discovery of topological materials has provided new opportunities to exploit advanced materials for heat-to-electricity energy conversion as they share many common characteristics with thermoelectric materials. In this work, we report the magneto-thermoelectric properties and Nernst effect of the topological Weyl semimetal NbP. We find that polycrystalline, bulk NbP shows a significantly larger Nernst thermopower than its conventional thermopower under magnetic field. As a result, a maximum Nernst power factor of ∼35 × 10-4 W m-1 K-2 is achieved at 9 T and 136 K, which is 4 times higher than its conventional power factor and is also comparable to that of state-of-the-art thermoelectrics. Moreover, the Nernst power factor maintains relatively large value over a broad temperature range. These results highlight that the enhancement of thermoelectric performance can be achieved in topological semimetals based on the Nernst effect and transverse transport. © 2018 The Royal Society of Chemistry.
英文关键词	Electric power factor; Energy conversion; Metalloids; Niobium compounds; Thermoelectric energy conversion; Thermoelectric equipment; Thermoelectric power; Thermoelectricity; Topology; Advanced materials; Broad temperature ranges; Conventional power; State of the art; Thermo-Electric materials; Thermoelectric performance; Thermoelectric properties; Topological materials; Phosphorus compounds; electrical property; electricity; inorganic compound; magnetic field; performance assessment; polymer; temperature effect; thermal power; topology
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190088
作者单位	Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, Dresden, 01187, Germany; Department of Mechanical and Aerospace Engineering, Ohio State University, Columbus, OH 43210, United States
推荐引用方式 GB/T 7714	Fu C.,Guin S.N.,Watzman S.J.,et al. Large Nernst power factor over a broad temperature range in polycrystalline Weyl semimetal NbP[J],2018,11(10).
APA	Fu C..,Guin S.N..,Watzman S.J..,Li G..,Liu E..,...&Felser C..(2018).Large Nernst power factor over a broad temperature range in polycrystalline Weyl semimetal NbP.Energy & Environmental Science,11(10).
MLA	Fu C.,et al."Large Nernst power factor over a broad temperature range in polycrystalline Weyl semimetal NbP".Energy & Environmental Science 11.10(2018).