Electron paramagnetic resonance in the system Er<i>x</i>Y1–<i>x</i>Ba2Cu3O<i>y</i>
A. G. AndersPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovS. V. VolotskiĭPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. I. ZvyaginPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovN. M. ChaikovskayaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
The resonance absorption spectra of the Er3+ ion in a 1–2–3 ceramic and in ErBa2Cu3Oy single crystals in normal and superconducting states are studied, and the data on the values of the g-factor and resonance linewidth obtained. The results of calculations of the parameters of the intracrystalline field are discussed for the system 1–2–3 (Er) and used for obtaining the values of the g-factor described in a number of works. The spin-spin interaction parameters in the rare-earth subsystem are calculated.
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