Pseudo-spin-gap and slow spin fluctuation in La2-xSrxCuO4 (x=0.13 and 0.18) via 63Cu and 139La nuclear quadrupole resonance -: art. no. 184503

被引：13

作者：

Itoh, Y

Machi, T

Koshizuka, N

Murakami, M

Yamagata, H

Matsumura, M

机构：

[1] Int Superconduct Technol Ctr, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan

[2] Japan Soc Promot Sci, Tokyo 1028471, Japan

[3] Kochi Univ, Fac Sci, Dept Mat Sci, Kochi 7808520, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.69.184503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyzed nonexponential Cu-63 nuclear spin-lattice relaxation curves for Cu-63-enriched high-T-c superconductors: La2-xSrxCuO4 with x=0.13 (slightly underdoped) and 0.18 (slightly overdoped), and studied the applicability of an impurity-induced nuclear spin-lattice relaxation theory. We found a remnant of pseudo-spin-gap effect on the host Cu-63 nuclear spin-lattice relaxation time and slow inhomogeneous spin fluctuation via the impurity-induced relaxation time. The effect of slow spin dynamics was also observed in La-139 nuclear spin-lattice relaxation. The inhomogeneous electron-spin fluctuation, which is associated with randomly distributed staggered moments on the CuO2 plane, smears the pseudo-spin-gap. The fact that the optimal T(c)similar to38 K is smaller than T(c)similar to96 K of HgBa2CuO4+delta can be attributed to the depairing effect due to the slow spin fluctuation.

引用

页码：184503 / 1

页数：8

共 29 条

[21] Theory for the Gaussian Component of the 63Cu Nuclear Spin-Echo Decay Rate 1/T2G in La2−xSrxCuO4
I. A. Larionov
Applied Magnetic Resonance, 2014, 45 : 1141 - 1146
[22] Field-induced magnetic order in La2-xSrxCuO4 (x=0.10,0.115,0.13) studied by in-plane thermal conductivity measurements -: art. no. 014503
Kudo, K
Yamazaki, M
Kawamata, T
Adachi, T
Noji, T
Koike, Y
Nishizaki, T
Kobayashi, N
PHYSICAL REVIEW B, 2004, 70 (01) : 014503 - 1
[23] Field induced magnetic order in La2-xSrxCuO4 (x=0.10,0.115,0.13) studied by in-plane thermal conductivity measurements (vol 70, art no 014503, 2004) -: art. no. 019901
Kudo, K
Yamazaki, M
Kawamata, K
Adachi, T
Noji, T
Koike, Y
Nishizaki, T
Kobayashi, N
PHYSICAL REVIEW B, 2004, 70 (01):
[24] Slow spin-glass and fast spin-liquid components in quasi-two-dimensional La2(Cu,Li)O4 -: art. no. 184401
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Bao, W
Qiu, Y
Lorenzo, JE
Sarrao, JL
Ho, DL
Lin, MY
PHYSICAL REVIEW B, 2005, 72 (18)
[25] Muon-spin-relaxation and magnetic-susceptibility studies of the effects of the magnetic impurity Ni on the Cu-spin dynamics and superconductivity in La2-xSrxCu1-yNiyO4 with x=0.13 -: art. no. 060504
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Yairi, S
Koike, Y
Watanabe, I
Nagamine, K
PHYSICAL REVIEW B, 2004, 70 (06): : 060504 - 1
[26] Muon-spin-relaxation study of the effect of nonmagnetic impurities on the Cu-spin fluctuations in La2-xSrxCu1-yZnyO4 around x=0.115 -: art. no. 180516
Watanabe, I
Adachi, T
Takahashi, K
Yairi, S
Koike, Y
Nagamine, K
PHYSICAL REVIEW B, 2002, 65 (18) : 1 - 4
[27] Quantum skyrmions and the destruction of long-range antiferromagnetic order in the high-Tc superconductors La2-xSrxCuO4 and YBa2Cu3O6+x -: art. no. 092511
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PHYSICAL REVIEW B, 2001, 64 (09):
[28] Muon spin relaxation and magnetic susceptibility studies of the effects of nonmagnetic impurities on the Cu spin dynamics and superconductivity in La2-xSrxCu1-yZnyO4 around x=0.115 -: art. no. 184507
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Yairi, S
Takahashi, K
Koike, Y
Watanabe, I
Nagamine, K
PHYSICAL REVIEW B, 2004, 69 (18) : 184507 - 1
[29] SPIN FLUCTUATIONS IN UNDOPED, HOLE-DOPED AND ELECTRON-DOPED CUO2 PLANES OF HIGH T-C CUPRATE SUPERCONDUCTORS - CU-63 NMR AND NQR STUDIES OF LA2-XSRXCUO4 (0-LESS-THAN-X-LESS-THAN-0.15) AND SR0.9LA0.1CUO2 (T-C=42K)
IMAI, T
SLICHTER, CP
YOSHIMURA, K
KATOH, M
KOSUGE, K
COBB, JL
MARKERT, JT
PHYSICA C, 1994, 235 : 1627 - 1628

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