GD-3+ - EPR STUDY OF GDBA2(CU1-XMX)3O7 (M = FE, CO, NI, ZN)

被引：10

作者：

SHIMIZU, H ^{[1
]}

KIYAMA, T ^{[1
]}

NAKAMURA, F ^{[1
]}

机构：

[1] HIROSHIMA UNIV,FAC SCI,DEPT PHYS,HIROSHIMA 724,JAPAN

来源：

PHYSICA C | 1993年 / 207卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90303-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Gd3+-EPR measurements were carried out for samples of GdBa2(Cu1-xMx)3O7(M = Fe, Co, Ni, Zn). The Gd3+-linewidths of Fe- and Co-doped samples increase remarkably with decreasing temperature. However, this low-temperature rise is suppressed in Ni- and Zn-doped samples. This suggest that Gd-Gd correlation is disturbed by Ni spin in the Ni-doped sample and Zn-induced spin in the Zn-doped sample, respectively. On the other hand, the linewidth of the Ni-doped sample increases when temperature and Ni concentration increase. The increasing part of linewidth can be explained by the increase of relaxation rate of the Ni moment to the lattice via Ni-spin-lattice coupling. The increase of linewidth is, however, not observed i n the Zn-doped sample. This is interpreted as the weak spin-lattice coupling of induced Cu moment.

引用

页码：225 / 230

页数：6

共 23 条

[1] THE MAGNETIC-FIELD DEPENDENCE OF THE LOW-TEMPERATURE SPECIFIC-HEAT IN SINGLE-CRYSTALS OF YBA2CU3O7
BAAK, J
MULLER, CJ
BROM, HB
MENKEN, MJV
KADOWAKI, K
MENOVSKY, AA
[J]. PHYSICA C, 1990, 168 (3-4): : 363 - 369
[2] BOCKSTALL LV, 1989, PHYSICA B, V155, P193
[3] CRYSTAL-FIELD INTERACTION IN THE GDXEU1-XBA2CU3O7-DELTA SUPERCONDUCTORS
CAUSA, MT
FAINSTEIN, C
NIEVA, G
SANCHEZ, R
STEREN, LB
TOVAR, M
ZYSLER, R
VIER, DC
SCHULTZ, S
OSEROFF, SB
FISK, Z
SMITH, JL
[J]. PHYSICAL REVIEW B, 1988, 38 (01): : 257 - 261
[4] EVIDENCE FOR THE DEPENDENCE OF THE MAGNETIC-ORDERING ON THE OXYGEN OCCUPANCY IN THE HIGH-TC SUPERCONDUCTOR GDBA2CU3O7-DELTA
CHATTOPADHYAY, T
MALETTA, H
WIRGES, W
FISCHER, K
BROWN, PJ
[J]. PHYSICAL REVIEW B, 1988, 38 (01): : 838 - 840
[5] CHIN L, 1990, PHYS REV B, V42, P2554, DOI 10.1103/PhysRevB.42.2554
[6] COLLOCOTT SJ, 1990, PHYS REV B, V41, P63
[7] IMPURE EXCHANGE-COUPLED PARAMAGNETS - ELECTRON-PARAMAGNETIC-RESONANCE STUDIES
GULLEY, JE
JACCARINO, V
[J]. PHYSICAL REVIEW B-SOLID STATE, 1972, 6 (01): : 58 - +
[8] SUPERCONDUCTIVITY ABOVE 90 K IN THE SQUARE-PLANAR COMPOUND SYSTEM ABA2CU3O6+X WITH A = Y, LA, ND, SM, EU, GD, HO, ER, AND LU
HOR, PH
MENG, RL
WANG, YQ
GAO, L
HUANG, ZJ
BECHTOLD, J
FORSTER, K
CHU, CW
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (18) : 1891 - 1894
[9] HIGH-TC SUPERCONDUCTIVITY IN NEW OXIDE SYSTEMS
HOSOYA, S
SHAMOTO, S
ONODA, M
SATO, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (04): : L325 - L326
[10] GD-3+ ELECTRON-PARAMAGNETIC-RES OF HIGH-TEMPERATURE SUPERCONDUCTOR GDBA2CU3OX
KIKUCHI, H
AJIRO, Y
UEDA, Y
KOSUGE, K
TAKANO, M
TAKEDA, Y
SATO, M
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (06) : 1887 - 1890

← 1 2 3 →