光谱学与光谱分析 |
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Raman Spectra Analysis of DKDP Crystal |
ZHAO Peng1,2,XIA Hai-rui2,LING Zong-cheng2,WANG Pei-ji1,SU Yan1,ZHANG Zhong1 |
1. School of Science,Ji’nan University,Ji’nan 250022,China 2. School of Physics and Microelectronics,Shandong University,Ji’nan 250100,China |
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Abstract Based on the space group theory, the normal vibration modes of DKDP crystal were analyzed and the assigned. Raman spectra were measured at the room temperature. Results show that the lattice vibration spectra of DKDP arise mainly from the internal vibrations of D2PO-4 anionic cluster. Compared with the Raman spectra of an aqueous solution of KH2PO4 and an NaD2(PO4)2 crystal, the four internal vibration models of the D2PO-4 in DKDP were assigned as 881 cm-1(ν1),357 cm-1(ν2),514/541 cm-1(ν3),965 cm-1(ν4), respectively.
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Received: 2005-12-16
Accepted: 2006-03-26
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Corresponding Authors:
ZHAO Peng
E-mail: ss_zhaop@ujn.edu.cn
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