Selenium doping NaCl-type superconductor: SnAs1-xSex (x=0-0.13)

doi:10.1016/j.jssc.2017.04.040

CORC > 北京大学 > 化学与分子工程学院

	Selenium doping NaCl-type superconductor: SnAs1-xSex (x=0-0.13)
	He, Jianqiao ; Zhang, Xian ; Lai, Xiaofang ; Huang, Fuqiang
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2017
关键词	SnAs1-xSex Superconductivity Compressive strain HIGH-PRESSURE TEMPERATURE SNAS
DOI	10.1016/j.jssc.2017.04.040
英文摘要	Selenium doped NaCl-type superconductor SnAs1-xSex (x=0-0.13) were made through solid state reaction. EDS results show that Se content increases with Se doping until over doped in SnAs0.9Se0.1 and SnAs0.87Se0.13 (around 2.7%). PXRD patterns confirmed the main phase of the six doped samples are SnAs. The cell parameters of doped SnAs were calculated using Rietveld refinements. Their cell parameters increase almost linearly with x until x reaches 13%. Single crystal diffraction measurement results show that there are no interstitial atom in doped SnAs. We conclude that Se atoms are substitutional atoms in SnAs. The superconducting onset temperatures (T-c(onset), under a magnetic field of 10 Oe) of SnAs increased from 3.8 K to 4.5 K by 10% Se doping. rho-T curves of 1%, 5% and 10% Se doped samples show that all the three samples are metallic. Upper critical field H-c2(0) of 1%, 5% and 10% Se doped samples are 294 Oe, 649 Oe and 1011 Oe, respectively.; Chinese Academy of Sciences [XDB04040200]; CAS Center for Excellence in Superconducting Electronics; National key research and development program [2016YFB0901600]; NSF of China [61376056]; Science and Technology Commission of Shanghai [16JC1401700, 14520722000]; SCI(E); ARTICLE; 106-110; 252
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471949]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	He, Jianqiao,Zhang, Xian,Lai, Xiaofang,et al. Selenium doping NaCl-type superconductor: SnAs1-xSex (x=0-0.13)[J]. JOURNAL OF SOLID STATE CHEMISTRY,2017.
APA	He, Jianqiao,Zhang, Xian,Lai, Xiaofang,&Huang, Fuqiang.(2017).Selenium doping NaCl-type superconductor: SnAs1-xSex (x=0-0.13).JOURNAL OF SOLID STATE CHEMISTRY.
MLA	He, Jianqiao,et al."Selenium doping NaCl-type superconductor: SnAs1-xSex (x=0-0.13)".JOURNAL OF SOLID STATE CHEMISTRY (2017).