Raman phonon spectroscopic study of phas
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Subhasis Chakrabarti; Uttam K. Sarkar; T. N. Misra
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Article
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1991
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John Wiley and Sons
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English
β 276 KB
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## Abstract Raman phonon spectroscopy in the 10β150 cm^β1^ shift range was used to study the phase transition in an __o__βaminobenzoic acid crystal (II). At 77 K, twelve distinct phonon modes are observed whereas at 300 K the spectrum shows ten phonon bands. The temperature dependence of the phonon