Superconductivity in efficient thermoelectric material Cu3Sb0.98Al0.02Se4

doi:10.1016/j.jallcom.2021.161828

	Superconductivity in efficient thermoelectric material Cu3Sb0.98Al0.02Se4
	Zhao, Xiaomiao 1,2; Zhou, Yonghui 3; Struzhkin, Viktor V.2; Mao, Ho-Kwang 2,4; Gavriliuk, Alexander G.5,6,7; Qin, Xiaoying 3; Chen, Xiaojia 2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-01-15
卷号	890
关键词	High-pressure Superconductivity Structural transition Hall coefficient
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.161828
通讯作者	Chen, Xiaojia(xjchen@hpstar.ac.cn)
英文摘要	Inspired by the rich physical properties of thermoelectric materials, we have investigated the electrical transport, vibrational, and structural properties of efficient thermoelectric material Cu3Sb0.98Al0.02Se4 under pressure up to 40.1 GPa. At a critical pressure of 8.5 GPa, a superconducting phase sets in and persists in the pressure range studied. A superconducting dome in the temperature-pressure phase diagram of Cu3Sb0.98Al0.02Se4 was observed. Meanwhile, pressure-induced structural transition from its initial phase to disorder body-centered cubic structure in Cu3Sb0.98Al0.02Se4 has been verified by the X-ray diffraction and Raman scattering measurements. Interestingly, the onset of superconductivity coincides with the structural transition, accompanied with the reduction of volume. The superconducting phase was observed in the ultimate formation of the Cu-Sb-Al-Se alloy and was determined to be Im-3m. Based on Hall coefficient measurements, we evaluated the carrier concentration of Cu3Sb0.98Al0.02Se4, which shows a dramatic increase in the superconducting state. These results suggest that the novel superconductor is realized through the charge transfers and the first-order structural transformation. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Key Scientific and Technological Research Projects in Henan Province[212102210114]
WOS关键词	TEMPERATURE ; CU3SBSE4 ; TRANSITION ; HYDRIDE ; KELVIN ; SN ; CU
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000706379700001
资助机构	Key Scientific and Technological Research Projects in Henan Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125513]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Xiaojia
作者单位	1.Henan Univ Technol, Coll Mat Sci & Engn, Zhengzhou 450001, Peoples R China 2.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 4.Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA 5.Russian Acad Sci, Inst Nucl Res, Troitsk 108840, Russia 6.Russian Acad Sci, FSRC Crystallog & Photon, Moscow 119333, Russia 7.Immanuel Kant Baltic Fed Univ, REC Funct Nanomat, Kaliningrad 236041, Russia
推荐引用方式 GB/T 7714	Zhao, Xiaomiao,Zhou, Yonghui,Struzhkin, Viktor V.,et al. Superconductivity in efficient thermoelectric material Cu3Sb0.98Al0.02Se4[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,890.
APA	Zhao, Xiaomiao.,Zhou, Yonghui.,Struzhkin, Viktor V..,Mao, Ho-Kwang.,Gavriliuk, Alexander G..,...&Chen, Xiaojia.(2021).Superconductivity in efficient thermoelectric material Cu3Sb0.98Al0.02Se4.JOURNAL OF ALLOYS AND COMPOUNDS,890.
MLA	Zhao, Xiaomiao,et al."Superconductivity in efficient thermoelectric material Cu3Sb0.98Al0.02Se4".JOURNAL OF ALLOYS AND COMPOUNDS 890(2021).