Please wait a minute...
Chin. Phys. B, 2019, Vol. 28(12): 127401    DOI: 10.1088/1674-1056/ab50b4

Different behavior of upper critical field in Fe1-xSe single crystals

Shunli Ni(倪顺利)1,2, Wei Hu(胡卫)1,2, Peipei Shen(沈沛沛)1,2, Zhongxu Wei(魏忠旭)1,2, Shaobo Liu(刘少博)1,2, Dong Li(李栋)1,2, Jie Yuan(袁洁)1,3, Li Yu(俞理)1,2,4, Kui Jin(金魁)1,2,3,4, Fang Zhou(周放)1,2, Xiaoli Dong(董晓莉)1,2,3,4, Zhongxian Zhao(赵忠贤)1,2,3,4
1 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Key Laboratory for Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100049, China;
4 Songshan Lake Materials Laboratory, Dongguan 523808, China
Abstract  The temperature dependences of upper critical field (Hc2) for a series of iron-deficient Fe1-xSe single crystals are obtained from the measurements of in-plane resistivity in magnetic fields up to 9 T and perpendicular to the ab plane. For the samples with lower superconducting transition temperature Tc (<7.2 K), the temperature dependence of Hc2 is appropriately described by an effective two-band model. For the samples with higher Tc (≥7.2 K), the temperature dependence can also be fitted by a single-band Werthamer-Helfand-Hohenberg formula, besides the two-band model. Such a Tc-dependent change in Hc2(T) behavior is discussed in connection with recent related experimental results, showing an inherent link between the changes of intrinsic superconducting and normal state properties in the FeSe system.
Keywords:  iron-deficient Fe1-xSe superconductors      upper critical field      magnetoresistivity  
Received:  16 October 2019      Revised:  21 October 2019      Accepted manuscript online: 
PACS:  74.70.Xa (Pnictides and chalcogenides)  
  74.25.Op (Mixed states, critical fields, and surface sheaths)  
  74.62.-c (Transition temperature variations, phase diagrams)  
  74.25.F- (Transport properties)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11888101 and 11834016), the National Key Research and Development Program of China (Grant Nos. 2017YFA0303003 and 2016YFA0300300), and the Strategic Priority Research Program and Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant Nos. QYZDY-SSW-SLH001 and XDB25000000).
Corresponding Authors:  Fang Zhou     E-mail:

Cite this article: 

Shunli Ni(倪顺利), Wei Hu(胡卫), Peipei Shen(沈沛沛), Zhongxu Wei(魏忠旭), Shaobo Liu(刘少博), Dong Li(李栋), Jie Yuan(袁洁), Li Yu(俞理), Kui Jin(金魁), Fang Zhou(周放), Xiaoli Dong(董晓莉), Zhongxian Zhao(赵忠贤) Different behavior of upper critical field in Fe1-xSe single crystals 2019 Chin. Phys. B 28 127401

[1] Coldea A I and Watson M D 2018 Annu. Rev. Condens. Matter Phys. 9 125
[2] Lee D H 2018 Annu. Rev. Condens. Matter Phys. 9 261
[3] Farrar L, Bristow M, Haghighirad A A, McCollam A, Bending S J and Coldea A I 2019 arXiv:1907.13174 [cond-mat.supr-con]
[4] Lei H, Graf D, Hu R, Ryu H, Choi E S, Tozer S W and Petrovic C 2012 Phys. Rev. B 85 094515
[5] Vedeneev S I, Piot B A, Maude D K and Sadakov A V 2013 Phys. Rev. B 87 134512
[6] Kaluarachchi U S, Taufour V, Böhmer A E, Tanatar M A, Bud'ko S L, Kogan V G, Prozorov R and Canfield P C 2016 Phys. Rev. B 93 064503
[7] Kang J H, Jung S G, Lee S, Park E, Lin J Y, Chareev D A, Vasiliev A N and Park T 2016 Supercond. Sci. Technol. 29 035007
[8] Yuan D N, Huang Y L, Ni S L, Zhou H X, Mao Y Y, Hu W, Yuan J, Jin K, Zhang G M, Dong X L and Zhou F 2016 Chin. Phys. B 25 077404
[9] Ni S L et al. submitted
[10] Lei H C, Hu R W, Choi E S, Warren J B and Petrovic C 2010 Phys. Rev. B 81 094518
[11] Lei H C, Hu R W, Choi E S, Warren J B and Petrovic C 2010 Phys. Rev. B 81 184522
[12] Wang Z S, Xie T, Kampert E, Förster T, Lu X Y, Zhang R, Gong D L, Li S L, Herrmannsdörfer T, Wosnitza J and Luo H Q 2015 Phys. Rev. B 92 174509
[13] Dong X L, Jin K, Yuan D N, Zhou H X, Yuan J, Huang Y L, Hua W, Sun J L, Zheng P, Hu W, Mao Y Y, Ma M W, Zhang G M, Zhou F and Zhao Z X 2015 Phys. Rev. B 92 064515
[14] Wang Z S, Yuan J, Wosnitza J, Zhou H X, Huang Y L, Jin K, Zhou F, Dong X L and Zhao Z X 2017 J. Phys.: Condens. Matter 29 025701
[15] Jaroszynski J, Riggs S C, Hunte F, Gurevich A, Larbalestier D C, Boebinger G S, Balakirev F F, Migliori A, Ren Z A, Lu W, Yang J, Shen X L, Dong X L, Zhao Z X, Jin R, Sefat A S, McGuire M A, Sales B C, Christen D K and Mandrus D 2008 Phys. Rev. B 78 064511
[16] Lee H S, Bartkowiak M, Park J H, Lee J Y, Kim J Y, Sung N H, Cho B K, Jung C U, Kim J S and Lee H J 2009 Phys. Rev. B 80 144512
[17] Kwok W K, Fleshler S, Welp U, Vinokur V M, Downey J, Crabtree G W and Miller M M 1992 Phys. Rev. Lett. 69 3370
[18] Blatter G, Feigel'man M V, Geshkenbein V B, Larkin A I and Vinokur V M 1994 Rev. Mod. Phys. 66 1125
[19] Gurevich A 2003 Phys. Rev. B 67 184515
[20] Werthamer N R, Helf E and Hohenberg P C 1966 Phys. Rev. 147 295
[21] Hunte F, Jaroszynski J, Gurevich A, Larbalestier D C, Jin R, Sefat A S, McGuire M A, Sales B C, Christen D K and Mandrus D 2008 Nature 453 903
[22] Kogan V G and Prozorov R 2012 Rep. Prog. Phys. 75 114502
[1] Investigation of dimensionality in superconducting NbN thin film samples with different thicknesses and NbTiN meander nanowire samples by measuring the upper critical field
Mudassar Nazir, Xiaoyan Yang(杨晓燕), Huanfang Tian(田焕芳), Pengtao Song(宋鹏涛), Zhan Wang(王战), Zhongcheng Xiang(相忠诚), Xueyi Guo(郭学仪), Yirong Jin(金贻荣), Lixing You(尤立星), Dongning Zheng(郑东宁). Chin. Phys. B, 2020, 29(8): 087401.
[2] Superconductivity with peculiar upper critical fields in quasi-one-dimensional Cr-based pnictides
Guang-Han Cao(曹光旱), Zeng-Wei Zhu(朱增伟). Chin. Phys. B, 2018, 27(10): 107401.
[3] Synthesis of large FeSe superconductor crystals via ion release/introduction and property characterization
Dongna Yuan(苑冬娜), Yulong Huang(黄裕龙), Shunli Ni(倪顺利), Huaxue Zhou(周花雪), Yiyuan Mao(毛义元), Wei Hu(胡卫), Jie Yuan(袁洁), Kui Jin(金魁), Guangming Zhang(张广铭), Xiaoli Dong(董晓莉), Fang Zhou(周放). Chin. Phys. B, 2016, 25(7): 077404.
[4] Magnetoresistivity and filamentary superconductivity in nickel-doped BaFe2As2
Wei Zhang(张威), Yao-Min Dai(戴耀民), Bing Xu(许兵), Run Yang(杨润), Jin-Yun Liu(刘金云), Qiang-Tao Sui(随强涛), Hui-Qian Luo(罗会仟), Rui Zhang(张睿), Xing-Ye Lu(鲁兴业), Hao Yang(杨浩), Xiang-Gang Qiu(邱祥冈). Chin. Phys. B, 2016, 25(4): 047401.
[5] The upper critical field in two-band layered superconductors
Liu Min-Xia(刘敏霞) and Gan Zi-Zhao(甘子钊). Chin. Phys. B, 2007, 16(3): 826-833.
[6] Anisotropy of the upper critical field in c-axis oriented MgB2 thin films
Wang Shu-Fang (王淑芳), Liu Zhen (刘震), Zhu Ya-Bin (朱亚彬), Zhou Yue-Liang (周岳亮), Chen Zheng-Hao (陈正豪), Lü Hui-Bin (吕惠宾), Yang Guo-Zhen (杨国桢). Chin. Phys. B, 2004, 13(7): 1120-1123.
No Suggested Reading articles found!