ORIGIN OF THE FINE-STRUCTURE IN THE VIBRATIONAL-SPECTRUM OF [PT(C2H8N2)2][PT(C2H8N2)2CL2](CLO4)4 - VIBRATIONAL LOCALIZATION IN A QUASI-ONE-DIMENSIONAL SYSTEM

被引:23
作者
LOVE, SP
WORL, LA
DONOHOE, RJ
HUCKETT, SC
SWANSON, BI
机构
[1] Inorganic and Structural Chemistry Group (INC-4), Los Alamos National Laboratory, Los Alamos
来源
PHYSICAL REVIEW B | 1992年 / 46卷 / 02期
关键词
D O I
10.1103/PhysRevB.46.813
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The complex fine structure in the Raman spectrum of the quasi-one-dimensional solid [Pt(C2H8N2)2][Pt(C2H8N2)2Cl2](ClO4)4 is shown, through studies of isotopically enriched materials and lattice-dynamics calculations, to originate from vibrational modes strongly localized by the positional disorder of the two naturally occurring Cl isotopes, making this an elegant example of a real material displaying vibrational localization in one dimension. The modes responsible for the observed features reside on short chain segments defined by a few statistically favored sequences of isotopes.
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页码:813 / 816
页数:4
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