Nodeless superconductivity in a quasi-two-dimensional superconductor AuTe2Se4/3

被引：3

作者：

Jia, Xiao-Yu ^{[1
,2
]}

Yu, Yun-Jie ^{[1
,2
]}

Chen, Xu ^{[3
]}

Guo, Jian-Gang ^{[3
]}

Ying, Tian-Ping ^{[1
,2
]}

He, Lan-Po ^{[1
,2
]}

Chen, Xiao-Long ^{[3
,4
,5
]}

Li, Shi-Yan ^{[1
,2
,6
]}

机构：

[1] Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

[3] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China

[4] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[5] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China

[6] Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

来源：

CHINESE PHYSICS B | 2018年 / 27卷 / 06期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

superconductivity; thermal transport measurement; gap structure; two-dimensional material; UNCONVENTIONAL SUPERCONDUCTIVITY; MAGNETIC-FIELD; TRANSITION; ALLOYS; FILMS; OXIDES; SERIES;

D O I：

10.1088/1674-1056/27/6/067401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We performed ultra-low temperature thermal conductivity measurements on the single crystal of a new gold-based quasi-two-dimensional superconductor AuTe2Se4/3, which has a superconducting transition temperature Tc = 2.70 K. A negligible residual linear term k(0)/T in zero magnetic field is observed, which suggests fully gapped superconducting state. Furthermore, the field dependence of k(0)/T is similar to that of the multi-band s-wave superconductor BaFe1.9Ni0.1As2 at low field. These results reveal multiple nodeless superconducting gaps in this interesting quasi-two-dimensional superconductor with Berezinsky-Kosterlitz-Thouless topological transition.

引用

页数：5

共 50 条

[1] Nodeless superconductivity in a quasi-two-dimensional superconductor AuTe2Se4/3
贾小雨
俞云杰
陈旭
郭建刚
应天平
何兰坡
陈小龙
李世燕
Chinese Physics B, 2018, 27 (06) : 89 - 93
[2] Quasi-two-dimensional superconductivity from dimerization of atomically ordered AuTe2Se4/3 cubes
Guo, J. G.
Chen, X.
Jia, X. Y.
Zhang, Q. H.
Liu, N.
Lei, H. C.
Li, S. Y.
Gu, L.
Jin, S. F.
Chen, X. L.
NATURE COMMUNICATIONS, 2017, 8
[3] Quasi-two-dimensional superconductivity from dimerization of atomically ordered AuTe2Se4/3 cubes
J. G. Guo
X. Chen
X. Y. Jia
Q. H. Zhang
N. Liu
H. C. Lei
S. Y. Li
L. Gu
S. F. Jin
X. L. Chen
Nature Communications, 8
[4] Ultrafast photonics of two dimensional AuTe2Se4/3 in fiber lasers
Liu, Wenjun
Liu, Mengli
Chen, Xu
Shen, Tao
Lei, Ming
Guo, Jiangang
Deng, Huixiong
Zhang, Wei
Dai, Chaoqing
Zhang, Xiaofei
Wei, Zhiyi
COMMUNICATIONS PHYSICS, 2020, 3 (01)
[5] Ultrafast photonics of two dimensional AuTe2Se4/3 in fiber lasers
Wenjun Liu
Mengli Liu
Xu Chen
Tao Shen
Ming Lei
Jiangang Guo
Huixiong Deng
Wei Zhang
Chaoqing Dai
Xiaofei Zhang
Zhiyi Wei
Communications Physics, 3
[6] Reentrant Orbital Effect Against Superconductivity in the Quasi-two-dimensional Superconductor NbS2
Lebed, A. G.
JETP LETTERS, 2021, 114 (08) : 479 - 485
[7] Reentrant Orbital Effect against Superconductivity in the Quasi-Two-Dimensional Superconductor NbS2
A. G. Lebed
JETP Letters, 2021, 114 : 479 - 485
[8] Quasi-two-dimensional superconductivity at oxide heterostructures
Feng, Ran
Yan, Liang
Zhang, Jiandi
ACTA PHYSICA SINICA, 2023, 72 (09)
[9] Superconductivity in the quasi-two-dimensional Hubbard model
Yan, XZ
PHYSICAL REVIEW B, 2005, 71 (10)
[10] Layered AuTe2Se4/3 for a stable nanosecond Q-switched fiber laser
Ouyang, Yuyi
You, Tianqi
Zhou, Qin
Liu, Mengli
Hou, Huanran
Liu, Ximei
Liu, Wenjun
OPTIK, 2020, 204

← 1 2 3 4 5 →