EPR of the ferroelectric phase transition in Li2Ge7O15:Cr3+ crystals |
| |
| Authors: | M P Trubitsyn M D Volnyanskii I A Busoul |
| |
| Institution: | (1) Dnepropetrovsk State University, 320625 Dnepropetrovsk, Ukraine |
| |
| Abstract: | A Cr3+ EPR study of lithium heptagermanate crystals, Li2Ge7O15 (LHG), close to the phase transition is reported. Orientation dependences of the spectra in the paraelectric phase of LHG
have been measured. An anomalous broadening of the resonant lines accompanied by a crossover in their shape was found in the
vicinity of the transition point. Doublet splitting of the EPR lines was observed to occur below T
C
as a result of emergence of two structurally nonequivalent positions for Cr3+ ions.
Fiz. Tverd. Tela (St. Petersburg) 40, 1102–1105 (June 1998) |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
