Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Pressure-induced Phase Transition In -liio3|
|Abstract:||We report the first observation of a pressure-induced phase transition in LiIO3. A new phase appears when -LiIO3 is compressed hydrostatically at room temperature, beyond 50 kbar. This is a reversible first-order transition with negligible hysteresis. The new phase -LiIO3 cannot be obtained by heating or cooling either - or -LiIO3 or by compressing the former. We observe the transition by studying the evolution of the Raman spectrum of -LiIO3 as a function of pressure (1 bar-95 kbar). We also report a detailed study of the pressure dependence of Raman frequencies for -LiIO3. The regularities observed in the mode-Gr̈neisen parameters and other pressure coefficients for thephase give insight into the probable structure of the high-pressure phase. © 1983 The American Physical Society.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.