EPR studies of low-temperature phase transition in KDy(MoO4)2 in submillimeter and millimeter wavelength ranges
V. A. BagulyaPhysicotechnical 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, KharkovM. I. KobetsPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. A. StepanovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. S. ZaikaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
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A spectrometer intended for studies of EPR spectra in the submillimeter range is developed. The angular dependences of the position of EPR line for KDy(MoO4)2 single crystals in an external magnetic field are determined. The principal values of the g-tensors of Dy3+ ion are obtained in the vicinity of the structural phase-transition temperature, and the symmetry of the low-temperature phase is determined.
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