EPR and dielectric spectroscopy of reorienting Cr3+-Li+ pair centres in Li2Ge7O15 crystal

Condensed Matter Physics

关键词: impurity ions;    electron paramagnetic resonance;    dielectric loss and relaxation;   

DOI  :  

来源: DOAJ

【 摘 要 】

Earlier it has been shown that in the lithium heptagermanate Li₂Ge₇O₁₅ structure the chromium doping ions substitute the germanium hosts and create Cr³⁺-Li⁺ pair centres. In the paper EPR and dielectric spectra of Li₂Ge₇O₁₅:Cr³⁺ crystal are studied in the temperature range 300-500 K. The thermally activated reorientation of Cr³⁺-Li⁺ pairs has been detected through EPR line width broadening and dielectric relaxation.

【 授权许可】

Unknown