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Investigation of the Cr:LiSrAlF6crystal by high-temperature Raman spectroscopy
Chinese Physics B
In this paper, Cr-doped LiSrAlF 6 crystals are investigated using high-temperature Raman spectroscopy and the single-crystal Raman spectra of Cr:LiSrAlF 6 are analysed by factor group theory and comparison with other fluorides. The results indicate that Cr:LiSrAlF 6 is stable below its melting point; Raman peaks located at 561, 322 and 250 cm −1 are assigned to the A 1g modes of AlF 6 , SrF 6 and LiF 6 octachdra, respectively; with temperature increasing, Raman peaks associated with AlF 6doi:10.1088/1674-1056/20/10/108101 fatcat:atu2yks7tzdhzpis55twd5chau