Unusual Normal and Superconducting State Properties Observed in Hydrothermal Fe1-delta Se Flakes

doi:10.1088/0256-307X/38/5/057401

	Unusual Normal and Superconducting State Properties Observed in Hydrothermal Fe1-delta Se Flakes
	Liu, Shaobo 3,4,5; Ma, Sheng 3,4,5; Wang, Zhaosheng 6; Hu, Wei 3,4,5; Li, Zian 3,4; Liang, Qimei 6; Wang, Hong 3,4,5; Zhang, Yuhang 3,4,5; Lu, Zouyouwei 3,4,5; Yuan, Jie 1,2,3,4
刊名	CHINESE PHYSICS LETTERS
	2021-06-01
卷号	38
ISSN号	0256-307X
DOI	10.1088/0256-307X/38/5/057401
通讯作者	Zhou, Fang(fzhou@phy.ac.cn)
英文摘要	The electronic and superconducting properties of Fe1-delta Se single-crystal flakes grown hydrothermally are studied by the transport measurements under zero and high magnetic fields up to 38.5 T. The results contrast sharply with those previously reported for nematically ordered FeSe by chemical-vapor-transport (CVT) growth. No signature of the electronic nematicity, but an evident metal-to-nonmetal crossover with increasing temperature, is detected in the normal state of the present hydrothermal samples. Interestingly, a higher superconducting critical temperature T (c) of 13.2 K is observed compared to a suppressed T (c) of 9 K in the presence of the nematicity in the CVT FeSe. Moreover, the upper critical field in the zero-temperature limit is found to be isotropic with respect to the field direction and to reach a higher value of similar to 42 T, which breaks the Pauli limit by a factor of 1.8.
资助项目	National Key Research and Development Program of China[2016YFA0300300] ; National Key Research and Development Program of China[2017YFA0303003] ; National Natural Science Foundation of China[12061131005] ; National Natural Science Foundation of China[11834016] ; National Natural Science Foundation of China[11888101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB25000000] ; Chinese Academy of Sciences[QYZDY-SSW-SLH001]
WOS关键词	CRITICAL-FIELD ; TRANSITION
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000657491400001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123663]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, Fang
作者单位	1.Univ Chinese Acad Sci, Key Lab Vacuum Phys, Beijing 100049, Peoples R China 2.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shaobo,Ma, Sheng,Wang, Zhaosheng,et al. Unusual Normal and Superconducting State Properties Observed in Hydrothermal Fe1-delta Se Flakes[J]. CHINESE PHYSICS LETTERS,2021,38.
APA	Liu, Shaobo.,Ma, Sheng.,Wang, Zhaosheng.,Hu, Wei.,Li, Zian.,...&Zhao, Zhongxian.(2021).Unusual Normal and Superconducting State Properties Observed in Hydrothermal Fe1-delta Se Flakes.CHINESE PHYSICS LETTERS,38.
MLA	Liu, Shaobo,et al."Unusual Normal and Superconducting State Properties Observed in Hydrothermal Fe1-delta Se Flakes".CHINESE PHYSICS LETTERS 38(2021).