Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10638316 | Materials Chemistry and Physics | 2005 | 5 Pages |
Abstract
The normal vibration modes of deuterated potassium dihydrogen phosphate (DKDP) crystals were analyzed basing on the space group theory. The lattice vibration spectra of DKDP, which arise mainly from internal vibrations of P-O tetrahedrons, were recorded by a micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the D2PO4 anion in KD2PO4 are assigned as 880Â cmâ1 (Ï
1, asymmetrical P(OD)2 stretching vibration), 356Â cmâ1 (Ï
2, in-plane P(OD)2 bending vibration), 512/540Â cmâ1 (Ï
3, PO2 bending vibration) and 967Â cmâ1 (Ï
4, in-plane PO2 symmetrical stretching vibration). Excellent agreement has been obtained between the theoretical studies and experimental investigations.
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Authors
W.L. Liu, H.R. Xia, X.Q. Wang, H. Han, G.W. Lu,