NUCLEAR-MAGNETIC-RESONANCE OF PLANE CU IN PARAMAGNETIC YBA2CU3O6

被引：22

作者：

MALI, M

MANGELSCHOTS, I

ZIMMERMANN, H

BRINKMANN, D

机构：

[1] Phusik-Institut, Universität Zurich, CH-8001 Zürich

来源：

PHYSICA C | 1991年 / 175卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(91)90268-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The first observation of the NMR of plane Cu in the paramagnetic state of YBa2Cu3O6 is reported. The NQR frequency and the anisotropies of the magnetic shift tensor and of the spin-lattice and spin-spin relaxation times have been measured. Evidence for a strong indirect spin-spin coupling of plane Cu nuclei mediated by the exchange coupled electrons has been found. The spin-lattice relaxation rate anisotropy is close to the value expected for purely dipolar interaction between the nuclear spin and the electronic spin of the Cu(2) 3d(x2-y2) hole. An "extra" anistropy observed in the superconductor YBa2Cu3O7 seems to arise from carriers and should be therefore dependent on their concentration.

引用

页码：581 / 586

页数：6

共 18 条

[11] ANTIFERROMAGNETISM IN YBA2CU3O6+X
TRANQUADA, JM
MOUDDEN, AH
GOLDMAN, AI
ZOLLIKER, P
COX, DE
SHIRANE, G
SINHA, SK
VAKNIN, D
JOHNSTON, DC
ALVAREZ, MS
JACOBSON, AJ
LEWANDOWSKI, JT
NEWSAM, JM
[J]. PHYSICAL REVIEW B, 1988, 38 (04): : 2477 - 2485
[12] ANISOTROPIC NUCLEAR-RELAXATION IN YBA2CU3O7
WALSTEDT, RE
WARREN, WW
BELL, RF
BRENNERT, GF
ESPINOSA, GP
CAVA, RJ
SCHNEEMEYER, LF
WASZCZAK, JV
[J]. PHYSICAL REVIEW B, 1988, 38 (13): : 9299 - 9302
[13] ANISOTROPIC CU-63 NUCLEAR-RELAXATION IN MAGNETICALLY ORIENTED POWDERED SAMPLES OF YBA2CU3O7
WALSTEDT, RE
WARREN, WW
BELL, RF
ESPINOSA, GP
[J]. PHYSICAL REVIEW B, 1989, 40 (04): : 2572 - 2574
[14] WONGNG W, 1987, ADV CERAM MATER, V2, P565
[15] OBSERVATION OF ANTIFERROMAGNETIC NUCLEAR-RESONANCE OF CU IN YBA2CU3O6
YASUOKA, H
SHIMIZU, T
UEDA, Y
KOSUGE, K
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (08) : 2659 - 2662
[16] [No title captured]
[17] [No title captured]
[18] [No title captured]

← 1 2 →