EPR of Gd3+ with g≈6.0 in glasses: a reinterpretation
作者： L Cugunov , J Kliava
DOI: 10.1088/0022-3719/15/26/010
关键词: Crystallography 、 Electron paramagnetic resonance 、 Field (physics) 、 Spin hamiltonian 、 Nuclear magnetic resonance 、 Crystal 、 Physics 、 Spectral line
摘要: Gd3+ in glasses exhibit sharp g approximately=6.0 features the EPR spectra. It is demonstrated that these can be adequately accounted for by using 'rhombic' spin Hamiltonian H=gc beta H.S+D(Sz2-(S/3)(S+1))+E(Sx2-Sy2) strong crystal field case. Computer simulations of experimental spectra phosphate result following estimates mean values D and E: mod D0 approximately=1 cm-1, E0 approximately=0.2 cm-1. The short-range order rather well preserved at sites responsible features.
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