Electron paramagnetic resonance of Tb3+ ions in YBa2Cu3O6

被引:1
|
作者
Gafurov, MR [1 ]
Ivanshin, VA
Kurkin, IN
Rodionova, MP
Keller, H
Gutmann, M
Staub, U
机构
[1] Kazan State Univ, MRS Lab, Kazan 420008, Russia
[2] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
[3] ETH Zurich, Neutron Scattering Lab, CH-5232 Villigen, Switzerland
[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源
JOURNAL OF SUPERCONDUCTIVITY | 2000年 / 13卷 / 06期
关键词
EPR; YBCO; rare-earth ions; impurities;
D O I
10.1023/A:1026477519347
中图分类号
O59 [应用物理学];
学科分类号
摘要
The first observation of electron paramagnetic resonance (EPR) of Tb3+ doped into YBa2 Cu3O6 is reported. EPR is used to determine the local symmetry of the rare-earth ion and to study the effect of suppression of high-T-c superconductivity by doping. The distance between the lowest singlets of Tb3+ ion Delta congruent to 7.1 GHz 0.24 cm(-1) and g-factor g parallel to similar or equal to 17.9 have been estimated from measurements. Both these parameters are in a good agreement with the corresponding calculated values. No evidence of Tb4+ ions was found.
引用
收藏
页码:895 / 897
页数:3
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