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
收藏
页码：177 / 180
页数：4
相关论文
共 16 条
  • [1] MAGNETIC-FIELD EFFECT ON CU-63 NUCLEAR-RELAXATION RATES IN YBA2CU3O7 AND IN LA1.85SR0.15CUO4 ABOVE AND BELOW TC
    BORSA, F
    RIGAMONTI, A
    CORTI, M
    ZIOLO, J
    HYUN, OB
    TORGESON, DR
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (05) : 698 - 701
  • [2] Effect of superconducting fluctuations on Cu-63 NQR-NMR relaxation in UBa2Cu3O7
    Carretta, P
    Livanov, DV
    Rigamonti, A
    Varlamov, AA
    [J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS, 1997, 19 (8-9): : 1131 - 1136
  • [3] Superconducting fluctuations and Cu-63 NQR-NMR relaxation in YBa2Cu3O7-delta: Effect of magnetic field and a test for the pairing-state symmetry
    Carretta, P
    Livanov, DV
    Rigamonti, A
    Varlamov, AA
    [J]. PHYSICAL REVIEW B, 1996, 54 (14) : R9682 - R9685
  • [4] CRITICAL FACTORS IN DESIGN OF SENSITIVE HIGH-RESOLUTION NUCLEAR MAGNETIC-RESONANCE SPECTROMETERS
    HOULT, DI
    RICHARDS, RE
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1975, 344 (1638): : 311 - 340
  • [5] NUCLEAR-SPIN-LATTICE RELAXATION-RATE MEASUREMENTS IN YBA2CU3O7
    MARTINDALE, JA
    BARRETT, SE
    DURAND, DJ
    OHARA, KE
    SLICHTER, CP
    LEE, WC
    GINSBERG, DM
    [J]. PHYSICAL REVIEW B, 1994, 50 (18): : 13645 - 13652
  • [6] Oxygen nuclear magnetic resonance on the 90 K plateau of YBa2Cu3O7-delta
    Martindale, JA
    Hammel, PC
    [J]. PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1996, 74 (05): : 573 - 578
  • [7] MITROVIC VF, 1998, B AM PHYS SOC, V43, P966
  • [8] MITROVIC VF, IN PRESS
  • [9] NUCLEAR SPIN-LATTICE RELAXATION IN HEXAGONAL TRANSITION METALS - TITANIUM
    NARATH, A
    [J]. PHYSICAL REVIEW, 1967, 162 (02): : 320 - &
  • [10] RANDERIA M, CONDMAT9710223
12