Electron Paramagnetic Resonance of Tb3+ Ions in YBa2Cu3O6

被引：0
作者：
M. R. Gafurov
V. A. Ivanshin
I. N. Kurkin
M. P. Rodionova
H. Keller
M. Gutmann
U. Staub
机构：
[1] Kazan State University,MRS Laboratory
[2] Physik-Institut der Universität Zürich,Laboratory for Neutron Scattering
[3] ETH Zürich; and Paul Scherrer Institute,undefined
来源：
Journal of Superconductivity | 2000年 / 13卷
关键词：
EPR; YBCO; rare-earth ions; impurities;
D O I：
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中图分类号：
学科分类号：
摘要：
The first observation of electron paramagnetic resonance (EPR) of Tb3+ doped into YBa2Cu3O6 is reported. EPR is used to determine the local symmetry of the rare-earth ion and to study the effect of suppression of high-Tc superconductivity by doping. The distance between the lowest singlets of Tb3+ ion Δ ≅ 7.1 GHz ≡ 0.24 cm−1 and g-factor g∥ ≃ 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.
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页码：895 / 897
页数：2
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