Interpreting quantum oscillation experiments on underdoped YBa2Cu3O6+x

被引：17

作者：

Tranquada, J. M. ^{[1
]}

Basov, D. N. ^{[2
]}

LaForge, A. D. ^{[2
]}

Schafgans, A. A. ^{[2
]}

机构：

[1] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 06期

基金：

美国国家科学基金会;

关键词：

HIGH-T-C; HIGH-TEMPERATURE SUPERCONDUCTORS; FERMI-SURFACE; PSEUDOGAP; POCKETS; STATE;

D O I：

10.1103/PhysRevB.81.060506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

On the basis of negative transport coefficients, it has been argued that the quantum oscillations observed in underdoped YBa2Cu3O6+x in high magnetic fields must be due to antinodal electron pockets. We point out a counterexample in which electronlike transport in a hole-doped cuprate is associated with Fermi-arc states. We also present evidence that the antinodal gap in YBa2Cu3O6.67 is robust to modest applied magnetic fields. We suggest that these observations should be taken into account when interpreting the results of the quantum oscillation experiments.

引用

页数：3

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