Observation of superconductivity and anomalous electrical resistivity in single-crystal Ir3Te8

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	Observation of superconductivity and anomalous electrical resistivity in single-crystal Ir3Te8
	Li, L ; Qi, TF ; Lin, LS ; Wu, XX ; Zhang, XT ; Butrouna, K ; Cao, VS ; Zhang, YH ; Hu, JP ; Yuan, SJ ; Schlottmann, P ; De Long, LE ; Cao, G
刊名	PHYSICAL REVIEW B
	2013
卷号	87 期号:17
ISSN号	1098-0121
通讯作者	Cao, G (reprint author), Univ Kentucky, Dept Phys & Astron, Ctr Adv Mat, Lexington, KY 40506 USA.
中文摘要	We observe an unusual combination of normal and superconducting state properties without any signature of strong spin fluctuations in single-crystal Ir3Te8. The electrical resistivity does not saturate by 700 K but exhibits a low-resistivity ratio, and it exhibits two extended linear regimes (approximately 20-330 and 370-700 K) with the same slope, separated by a small hysteretic interval marking a strong first-order phase transition from cubic to rhombohedral lattice symmetry at T-S = 350 K. The electronic heat-capacity coefficient (11 mJ mol(-1) K-2) is consistent with a net diamagnetic, rather than a Pauli paramagnetic, normal state that yields to superconductivity below a critical temperature T-C = 1.8 K. The size of the heat-capacity jump near T-C indicates bulk superconductivity.
资助信息	NSF [DMR-0856234, EPS-0814194]; Ministry of Science and Technology of China 973 program [2012CB821400]; US Department of Energy [DE-FG02-97ER45653, DE-FG02-98ER45707]; [NSFC-1190024]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57277]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, L,Qi, TF,Lin, LS,et al. Observation of superconductivity and anomalous electrical resistivity in single-crystal Ir3Te8[J]. PHYSICAL REVIEW B,2013,87(17).
APA	Li, L.,Qi, TF.,Lin, LS.,Wu, XX.,Zhang, XT.,...&Cao, G.(2013).Observation of superconductivity and anomalous electrical resistivity in single-crystal Ir3Te8.PHYSICAL REVIEW B,87(17).
MLA	Li, L,et al."Observation of superconductivity and anomalous electrical resistivity in single-crystal Ir3Te8".PHYSICAL REVIEW B 87.17(2013).