Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling

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	Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling
	Jiang, Jun; Liu, Guo-Qiang; Tan, Xiaojian; Mao, Li-Sha; Wang, Hong-Xiang; Xu, Jingtao; Shao, Hezhu; Hu, Haoyang
刊名	NANO ENERGY
	2018
卷号	51 页码:649-655
关键词	Augmented-wave Method Polycrystalline Snse Thermal-conductivity Transport-properties Performance Snte Pbse Pressure Crystals Phase
英文摘要	Recently, tin selenide SnSe has attracted extensive attention for the reported excellent thermoelectric performance. By alloying with AgSbSe2, we observed that SnSe undergoes a phase transition from the orthorhombic structure to a cubic phase. The cubic SnSe exhibits some anomalous thermoelectric properties compared with common IV-VI cubic semiconductors, such as PbTe and SnTe. It is proven that cubic SnSe is not a trivial band semiconductor, whereas its band gap originates in the spin-orbit coupling effects. In this nontrivial semiconductor, the competing factors, Seebeck coefficient and electrical conductivity, can be simultaneously optimized. The peak ZT reaches 0.82 at 842 K in Sn-0.4(AgSb)(0.3)Se. This study reveals that such spin-orbit semiconductors are a new class of promising thermoelectric materials, in which the thermoelectric performance strongly depends on the local spin-orbit coupling, besides the overall chemical bonding.
学科主题	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17234]
专题	2018专题
推荐引用方式 GB/T 7714	Jiang, Jun,Liu, Guo-Qiang,Tan, Xiaojian,et al. Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling[J]. NANO ENERGY,2018,51:649-655.
APA	Jiang, Jun.,Liu, Guo-Qiang.,Tan, Xiaojian.,Mao, Li-Sha.,Wang, Hong-Xiang.,...&Hu, Haoyang.(2018).Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling.NANO ENERGY,51,649-655.
MLA	Jiang, Jun,et al."Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling".NANO ENERGY 51(2018):649-655.