CU NQR STUDY OF THE SPIN DYNAMICS IN HIGH-TC SUPERCONDUCTOR LA2-XSRXCUO4

被引:93
作者
OHSUGI, S
KITAOKA, Y
ISHIDA, K
ASAYAMA, K
机构
[1] Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka
关键词
D O I
10.1143/JPSJ.60.2351
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The nuclear spin-lattice relaxation time T1 of Cu-63 in La2-xSr(x)CuO4 was measured in the concentration range of x = 0.075 approximately 0.15 near the magnetic phase boundary around x = 0.05. At low Sr concentration and low temperature, (T1T)-1 was found to increase markedly with a development of strong antiferromagnetic (AF) spin correlation among Cu spins. In normal state, (T1T)-1 exhibits a temperature dependence of C/(T + theta) associated with the Curie-Weiss law of the staggered susceptibility chi-Q (T) at the zone boundary, Q = (pi/a, pi/a), above 60 K and approaches a nearly constant value in a narrow T-region just above T(c). T(c) decreases with decreasing theta, becoming zero at x = 0.05 when theta is extrapolated to zero. The rapid decrease of 1/T1 below T(c) has commonly been observed irrespectively of further development of the AF correlation with decreasing Sr content.
引用
收藏
页码:2351 / 2360
页数:10
相关论文
共 23 条
  • [1] ANTIFERROMAGNETIC SPIN CORRELATIONS IN INSULATING, METALLIC, AND SUPERCONDUCTING LA2-XSRXCUO4
    BIRGENEAU, RJ
    GABBE, DR
    JENSSEN, HP
    KASTNER, MA
    PICONE, PJ
    THURSTON, TR
    SHIRANE, G
    ENDOH, Y
    SATO, M
    YAMADA, K
    HIDAKA, Y
    ODA, M
    ENOMOTO, Y
    SUZUKI, M
    MURAKAMI, T
    [J]. PHYSICAL REVIEW B, 1988, 38 (10): : 6614 - 6623
  • [2] 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
  • [3] FUKUYAMA H, IN PRESS J PHYS SOC
  • [4] 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
  • [5] NUCLEAR SPIN RELAXATION IN NORMAL AND SUPERCONDUCTING ALUMINUM
    HEBEL, LC
    SLICHTER, CP
    [J]. PHYSICAL REVIEW, 1959, 113 (06): : 1504 - 1519
  • [6] ANALYSIS OF NUCLEAR-RELAXATION EXPERIMENTS IN HIGH-TC OXIDES BASED ON MILA-RICE HAMILTONIAN
    IMAI, T
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (07) : 2508 - 2521
  • [7] CU-63 NMR-STUDY OF SPIN DYNAMICS IN LA2-X(SR,BA)XCUOY(0.04-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.16,3.99-LESS-THAN-OR-EQUAL-TOY-LESS-THAN-OR-EQUAL-TO-4.03)
    IMAI, T
    YOSHIMURA, K
    UEMURA, T
    YASUOKA, H
    KOSUGE, K
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (11) : 3846 - 3849
  • [8] NUCLEAR-QUADRUPOLE RESONANCE OF CU IN SUPERCONDUCTING (LA0.925SR0.075)2CUO4
    ISHIDA, K
    KITAOKA, Y
    ASAYAMA, K
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (01) : 36 - 38
  • [9] Ishida K., UNPUB
  • [10] SPIN CORRELATION IN (LA1-XSRX)2CUO4-63CU NQR STUDY
    KITAOKA, Y
    ISHIDA, K
    KONDO, K
    ASAYAMA, K
    [J]. PHYSICA B, 1990, 165 : 1309 - 1310