Pressure Dependence of the Raman Modes Related to the Phase Transitions in Cyclohexane

• Authors: H. Yurtseven , A. Cebeci
• Languages of publication: EN

Abstracts

EN

The pressure dependence of the Raman frequencies for the ν_{21} mode is studied by using the volume data at room temperature close to the transitions among the phases of III, IV and V in cyclohexane. By determining the pressure dependence of the mode Grüneisen parameter γ_{T} in the phases and taking the average values, the Raman frequencies of those modes associated with the phase transitions are predicted through the volume data in cyclohexane. Our predicted Raman frequencies agree with those observed experimentally in this organic molecule. The Raman frequencies of the other modes can be calculated in cyclohexane and also in some molecular crystals using the method given here.

Keywords

EN

63.70.+h; 64.70.Dv

Discipline

• 63.70.+h: Statistical mechanics of lattice vibrations and displacive phase transitions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 3
• Pages: 744-747

Dates

published

2015-03

received

2014-03-15

(unknown)

2015-01-15

(unknown)

2015-02-10

Contributors

author

H. Yurtseven

• Department of Physics, Middle East Technical University, 06531 Ankara, Turkey

author

A. Cebeci

• Department of Physics, Middle East Technical University, 06531 Ankara, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.744