NMR-STUDIES OF O-17 IN THE NORMAL STATE OF YBA2CU3O6+X

被引:112
作者
YOSHINARI, Y [1 ]
YASUOKA, H [1 ]
UEDA, Y [1 ]
KOGA, K [1 ]
KOSUGE, K [1 ]
机构
[1] KYOTO UNIV, FAC SCI, DEPT CHEM, SAKYO KU, KYOTO 606, JAPAN
关键词
D O I
10.1143/JPSJ.59.3698
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The temperature dependence of both the Knight shift (K) tensor and the nuclear spin-lattice relaxation rate (1/T1) in the normal state have been studied, by using the magnetically oriented powered samples of YBa2Cu3O6+x with x=0.96, 0.8 and 0.6. From the K–χ plot for the planer oxygen sites (O(2, 3)), we have determined the principal values of the hyperfine field tensor and found that those hardly depend on the hole concentration. The remarkable feature has emerged from the T-dependence of the 1/(T1T) at the O(2, 3) sites; i.e. it reveals almost the same T-dependence of the spin parts of the Knight shift. This observation suggests that the energy width of the spin excitations around q ~ 0 is T-independent in the normal state. The Knight shift tensor at the apical oxygen sites has also been measured and is discussed. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.
引用
收藏
页码:3698 / 3711
页数:14
相关论文
共 44 条
  • [1] Y-89 NMR-STUDY OF THE PAULI SUSCEPTIBILITY OF THE CUO2 PLANES IN YBA2CU3O6+X
    ALLOUL, H
    MENDELS, P
    COLLIN, G
    MONOD, P
    [J]. PHYSICAL REVIEW LETTERS, 1988, 61 (06) : 746 - 749
  • [2] ANDESON PW, 1990, HIGH TEMPERATURE SUP
  • [3] CU-63 KNIGHT-SHIFTS IN THE SUPERCONDUCTING STATE OF YBA2CU3O7-DELTA(TC=90-K)
    BARRETT, SE
    DURAND, DJ
    PENNINGTON, CH
    SLICHTER, CP
    FRIEDMANN, TA
    RICE, JP
    GINSBERG, DM
    [J]. PHYSICAL REVIEW B, 1990, 41 (10): : 6283 - 6296
  • [4] BERTHIER C, 1990, DYNAMICS MAGNETIC FL
  • [5] KNIGHT-SHIFTS AND NUCLEAR-SPIN-RELAXATION RATES FOR 2-DIMENSIONAL MODELS OF CUO2
    BULUT, N
    HONE, DW
    SCALAPINO, DJ
    BICKERS, NE
    [J]. PHYSICAL REVIEW B, 1990, 41 (04): : 1797 - 1811
  • [6] RANDOM-PHASE APPROXIMATION ANALYSIS OF NMR AND NEUTRON-SCATTERING EXPERIMENTS ON LAYERED CUPRATES
    BULUT, N
    HONE, D
    SCALAPINO, DJ
    BICKERS, NE
    [J]. PHYSICAL REVIEW LETTERS, 1990, 64 (22) : 2723 - 2726
  • [7] MODEL OF NUCLEAR-RELAXATION IN YBA2CU3O7-DELTA
    COX, DL
    TREES, BR
    [J]. PHYSICAL REVIEW B, 1990, 41 (16): : 11260 - 11270
  • [8] SUPERCONDUCTING PROPERTIES OF ALIGNED CRYSTALLINE GRAINS OF Y1BA2CU3O7-DELTA
    FARRELL, DE
    CHANDRASEKHAR, BS
    DEGUIRE, MR
    FANG, MM
    KOGAN, VG
    CLEM, JR
    FINNEMORE, DK
    [J]. PHYSICAL REVIEW B, 1987, 36 (07): : 4025 - 4027
  • [9] SPIN DYNAMICS AT OXYGEN SITES IN YBA2CU3O7
    HAMMEL, PC
    TAKIGAWA, M
    HEFFNER, RH
    FISK, Z
    OTT, KC
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (18) : 1992 - 1995
  • [10] HYPERFINE STRUCTURE IN GROUND MULTIPLETS OF 17O AND 19F
    HARVEY, JSM
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1965, 285 (1403): : 581 - &