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Anisotropic upper critical magnetic fields in Rb2Cr3As3 superconductor
Tang, Zhang-Tu1; Liu, Yi1; Bao, Jin-Ke1,5; Xi, Chuan-Ying2; Pi, Li2,3,4; Cao, Guang-Han1,4
2017-10-25
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
卷号29期号:42
摘要Rb2Cr3As3 is a structurally one-dimensional superconductor containing Cr3As3 chains with a superconducting transition temperature of T-c = 4.8 K. Here we report the electrical resistance measurements for Rb2Cr3As3 single crystals, under magnetic fields up to 29.5 T and at temperatures down to 0.36 K, from which the upper critical fields, H-c2(T), can be obtained in a broad temperature range. For field parallel to the Cr3As3 chains, H-c2(parallel to)(T) is paramagnetically limited with an initial slope of mu(0)dH(c2)(parallel to)/dT|T-c = - 16 T K-1 and a zero-temperature upper critical field of mu H-0(c2)parallel to(0) = 17.5 T. For field perpendicular to the Cr3As3 chains, however, H-c2(perpendicular to)(T) is only limited by orbital pair-breaking effect with mu(0)dH(c2)(perpendicular to)/dT|(Tc) = - 3 T K-1. As a consequence, the anisotropy gamma H = H-c2(parallel to)/H-c2(perpendicular to) decreases sharply near T-c and reverses below 2 K. Remarkably, the low- temperature H-c2(perpendicular to)(T) down to 0.075 T-c remains to increase linearly up to over three times the Pauli paramagnetic limit, which strongly suggests dominant spin-triplet superconductivity in Rb2Cr3As3.
文章类型Article
关键词Cr-based Superconductors Upper Critical Fields Unconventional Superconductivity
WOS标题词Science & Technology ; Physical Sciences
资助者National Science Foundation of China(11674281 ; National Science Foundation of China(11674281 ; 11574288) ; 11574288) ; National Science Foundation of China(11674281 ; National Science Foundation of China(11674281 ; 11574288) ; 11574288)
DOI10.1088/1361-648X/aa84eb
关键词[WOS]DEPENDENCE ; UPT3 ; RB ; CS ; A(2)CR(3)AS(3) ; TEMPERATURE ; CRYSTAL
收录类别SCI
语种英语
资助者National Science Foundation of China(11674281 ; National Science Foundation of China(11674281 ; 11574288) ; 11574288) ; National Science Foundation of China(11674281 ; National Science Foundation of China(11674281 ; 11574288) ; 11574288)
WOS研究方向Physics
WOS类目Physics, Condensed Matter
WOS记录号WOS:000410957900001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33671
专题中科院强磁场科学中心
作者单位1.Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
3.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
4.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
5.Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
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GB/T 7714
Tang, Zhang-Tu,Liu, Yi,Bao, Jin-Ke,et al. Anisotropic upper critical magnetic fields in Rb2Cr3As3 superconductor[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2017,29(42).
APA Tang, Zhang-Tu,Liu, Yi,Bao, Jin-Ke,Xi, Chuan-Ying,Pi, Li,&Cao, Guang-Han.(2017).Anisotropic upper critical magnetic fields in Rb2Cr3As3 superconductor.JOURNAL OF PHYSICS-CONDENSED MATTER,29(42).
MLA Tang, Zhang-Tu,et al."Anisotropic upper critical magnetic fields in Rb2Cr3As3 superconductor".JOURNAL OF PHYSICS-CONDENSED MATTER 29.42(2017).
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