High-Temperature Anomalous Metal States in Iron-Based Interface Superconductors

被引：8

作者：

Li, Yanan ^{[1
,6
]}

Liu, Haiwen ^{[2
]}

Ji, Haoran ^{[1
]}

Ji, Chengcheng ^{[1
,9
]}

Qi, Shichao ^{[1
]}

Jiao, Xiaotong ^{[3
,5
]}

Dong, Wenfeng ^{[3
]}

Sun, Yi ^{[1
]}

Zhang, Wenhao ^{[3
,8
]}

Cui, Zihan ^{[4
]}

Pan, Minghu ^{[5
]}

Samarth, Nitin ^{[6
]}

Wang, Lili ^{[3
]}

Xie, X. C. ^{[1
,9
,10
,11
]}

Xue, Qi-Kun ^{[3
,9
,12
]}

Liu, Yi ^{[4
,7
]}

Wang, Jian ^{[1
,9
,10
]}

机构：

[1] Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China

[2] Beijing Normal Univ, Ctr Adv Quantum Studies, Dept Phys, Beijing 100875, Peoples R China

[3] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China

[4] Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Dept Phys, Beijing 100872, Peoples R China

[5] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China

[6] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[7] Renmin Univ China, Key Lab Quantum State Construction & Manipulat, Minist Educ, Beijing, Peoples R China

[8] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[9] Hefei Natl Lab, Hefei 230088, Peoples R China

[10] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[11] Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China

[12] Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 22期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

RESISTIVE TRANSITION; QUANTUM DYNAMICS; CRITICAL-POINT; GROUND-STATE; PHASE; TRANSPORT; DISSIPATION; RESISTANCE; BEHAVIOR; ARRAYS;

D O I：

10.1103/PhysRevLett.132.226003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nature of the anomalous metal state has been a major puzzle in condensed matter physics for more than three decades. Here, we report systematic investigation and modulation of the anomalous metal states in high-temperature interface superconductor FeSe films on SrTiO3 substrate. Remarkably, under zero magnetic field, the anomalous metal state persists up to 20 K in pristine FeSe films, an exceptionally high temperature standing out from previous observations. In stark contrast, for the FeSe films with nanohole arrays, the characteristic temperature of the anomalous metal state is considerably reduced. We demonstrate that the observed anomalous metal states originate from the quantum tunneling of vortices adjusted by the Ohmic dissipation. Our work offers a perspective for understanding the origin and modulation of the anomalous metal states in two-dimensional bosonic systems.

引用

页数：7

共 80 条

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