Lattice dynamic investigation of the Ram
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H. C. Gupta; V. Sharma
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Article
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2007
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John Wiley and Sons
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English
β 108 KB
## Abstract A shortβrange force constant model has been applied to investigate the Raman and the infrared wavenumbers in R~2~BaNiO~5~ (R = Y, Gd) in their orthorhombic phase of space group __Immm__. Calculations of zoneβcenter phonons are made with seven stretching and four bending force constants.