Analysis of the Raman frequencies close
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H. Yurtseven; T.U. Tuzer
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Article
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2007
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Elsevier Science
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English
⚖ 137 KB
This study gives our analysis of the Raman frequencies for the lattice modes of m 5 TO(174 cm À1 ), m 5 TO(144 cm À1 ) and m 7 TA(93 cm À1 ), and an internal mode of m 2 (1708 cm À1 ) as functions of temperature in NH 4 Cl close to its k-phase transition (T k = 241.2 K, P = 0). This analysis is perf