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Raman Scattering Study of ND4+ -Ion Motion and Structural Phase Transitions in ( ND4)2PbCl6 |
SHI Jin-rong1;XU Yong-chen1;Y. Kume2;R. Arnscheidt3;J. Pelzl3;WU Xiang4 |
1Pohl Institute of Solid State Physics, Tongji University , Shanghai 200092
2Faculty of General Education , Azabu University, Fuchinobe, Sagamihara , Kanagawa 229, Japan
3Institut für Experimentalphysk IIII, AG FestKörperspektroskopie,Ruhr-Universität Bochum , 44780 Bochum , Germany
4International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
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Cite this article: |
SHI Jin-rong, XU Yong-chen, Y. Kume et al 1996 Chin. Phys. Lett. 13 394-396 |
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Abstract Raman spectra of the internal modes of ND4+-Ion in ( ND4)2PbCl6 crystal have been recorded in the temperature range of 5 - 300K. A new structural phase transition was observed at 34 K because of deuterium effect. Discontinuous behaviours of the interna1 modes of the ND4+-ion at this temperature show that the structural transition is one of first order.
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Keywords:
78.30.Hv
64.70.Kb
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Published: 01 May 1996
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