Scale-invariant magnetoresistance in a cuprate superconductor

被引：124

作者：

Giraldo-Gallo, P. ^{[1
,2
]}

Galvis, J. A. ^{[1
,3
]}

Stegen, Z. ^{[1
,4
,10
]}

Modic, K. A. ^{[5
]}

Balakirev, F. F. ^{[6
]}

Betts, J. B. ^{[6
]}

Lian, X. ^{[1
,4
]}

Moir, C. ^{[1
,4
]}

Riggs, S. C. ^{[1
]}

Wu, J. ^{[7
]}

Bollinger, A. T. ^{[7
]}

He, X. ^{[7
,8
]}

Bozovic, I. ^{[7
,8
]}

Ramshaw, B. J. ^{[6
,9
]}

McDonald, R. D. ^{[6
]}

Boebinger, G. S. ^{[1
,4
]}

Shekhter, A. ^{[1
]}

机构：

[1] Florida State Univ, NHMFL, Tallahassee, FL 32310 USA

[2] Univ Los Andes, Dept Phys, Bogota 111711, Colombia

[3] Univ Cent, Fac Ingn & Ciencias Basicas, Dept Ciencias Nat, Bogota 110311, Colombia

[4] Florida State Univ, Dept Phys, Tallahassee, FL 32310 USA

[5] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[6] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[7] Brookhaven Natl Lab, Upton, NY 11973 USA

[8] Yale Univ, Appl Phys Dept, New Haven, CT 06520 USA

[9] Cornell Univ, Lab Atom & Solid State Phys, Ithaca, NY 14853 USA

[10] Northrop Grumman Corp, Linthicum, MD 21090 USA

来源：

SCIENCE | 2018年 / 361卷 / 6401期

关键词：

T-C SUPERCONDUCTOR; HIGH-TEMPERATURE SUPERCONDUCTIVITY; QUANTUM CRITICAL-POINT; FERMI-LIQUID BEHAVIOR; NORMAL-STATE; COPPER OXIDES; PSEUDOGAP; TRANSPORT; DENSITY; METALS;

D O I：

10.1126/science.aan3178

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The anomalous metallic state in the high-temperature superconducting cuprates is masked by superconductivity near a quantum critical point. Applying high magnetic fields to suppress superconductivity has enabled detailed studies of the normal state, yet the direct effect of strong magnetic fields on the metallic state is poorly understood. We report the high-field magnetoresistance of thin-film La2-xSrxCuO4 cuprate in the vicinity of the critical doping, 0.161 <= p <= 0.190. We find that the metallic state exposed by suppressing superconductivity is characterized by magnetoresistance that is linear in magnetic fields up to 80 tesla. The magnitude of the linear-in-field resistivity mirrors the magnitude and doping evolution of the well-known linear-in-temperature resistivity that has been associated with quantum criticality in high-temperature superconductors.

引用

页码：479 / 481

页数：3

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