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Effects of Electric Field on Raman Spectra in SrTi16O3 and SrTi18O3
Kohji Abe,Mitsuru Itoh,Osamu Sanaka,Ruiping Wang,Takashi Akaike,Takeshi Shigenari,Tomohiko Takemoto 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.1
Proton ordering phase transition of ice crystal was studied by Raman pectroscopy. The difference of the vibrational modes between Ih and XI phase were detected for the rst time in the translation region and in the libration region. Below Tc(= 72K), in the translation region a new intense peak was observed at 236 cm1 and the peak at 315 cm1 in Ih phase shifted to 325 cm1. In the libration region several new peaks were observed. Assignments of these modes are discussed from the polarization dependence.