Magnetic field independence of the spin gap in YBa2Cu3O7-δ

被引：73

作者：

Gorny, K

Vyaselev, OM

Martindale, JA

Nandor, VA

Pennington, CH

Hammel, PC

Hults, WL

Smith, JL

Kuhns, PL

Reyes, AP

Moulton, WG

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.82.177

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report, for magnetic fields of 0, 8.8, and 14.8 T, measurements of the temperature dependent Cu-63 NMR spin lattice relaxation rate for near optimally doped YBa2Cu3O7-delta, near and above T-c. In sharp contrast with previous work we find no magnetic field dependence. We discuss experimental issues arising in measurements of this required precision and implications of the experiment regarding issues including the spin gap or pseudogap. [S0031-9007(98)08138-1].

引用

页码：177 / 180

页数：4

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