Specific heat related to the Raman frequency shifts for the rotatory mode in ammonia solid I close to the melting point

Karacali, H; Yurtseven, HASAN

doi:10.1016/j.jqsrt.2005.05.072

Specific heat related to the Raman frequency shifts for the rotatory mode in ammonia solid I close to the melting point

Atıf İçin Kopyala

Karacali H., Yurtseven H.

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, cilt.98, sa.1, ss.57-67, 2006 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 98 Sayı: 1
Basım Tarihi: 2006
Doi Numarası: 10.1016/j.jqsrt.2005.05.072
Dergi Adı: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.57-67
Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This study gives an evidence for the validity of our spectroscopic modification of the Pippard relation as apphed to ammonia solid I close to the melting point. We use our calculated frequencies for the rotatory lattice (librational) mode in ammonia solid I for the pressures of 0, 1.93 and 3.07 kbars. We obtain that the specific heat C-p varies linearly with the frequency shifts 1/v(delta v/delta T)(p) for this Raman mode at those pressures studied in this crystalline system. Our values of the slope dP(m)/dT that we deduced from the linear plots, are not in satisfactory agreement with the experimental values in ammonia solid I near the melting point. (c) 2005 Elsevier Ltd. All rights reserved.