scholarly journals Thermal conductivity of compound semiconductors: Interplay of mass density and acoustic-optical phonon frequency gap

2014 ◽  
Vol 116 (7) ◽  
pp. 073503 ◽  
Author(s):  
Ankit Jain ◽  
Alan J. H. McGaughey
Keyword(s):  
Thermal Conductivity ◽  
Optical Phonon ◽  
Phonon Frequency ◽  
Mass Density ◽  
Compound Semiconductors ◽  
Optical Phonon Frequency

Raman scattering on silicon nanowires: The thermal conductivity of the environment determines the optical phonon frequency

2006 ◽  
Vol 88 (23) ◽  
pp. 233114 ◽  
Author(s):  
H. Scheel ◽  
S. Reich ◽  
A. C. Ferrari ◽  
M. Cantoro ◽  
A. Colli ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Raman Scattering ◽  
Silicon Nanowires ◽  
Optical Phonon ◽  
Phonon Frequency ◽  
Optical Phonon Frequency

Strain-Induced Shift of Optical Phonon Frequency in InGaP Layers Grown on GaAs Substrates

1987 ◽  
Vol 26 (Part 2, No. 10) ◽  
pp. L1597-L1600 ◽  
Author(s):  
Takamasa Kato ◽  
Takashi Matsumoto ◽  
Mitsuru Hosoki ◽  
Tetsuro Ishida
Keyword(s):  
Optical Phonon ◽  
Phonon Frequency ◽  
Gaas Substrates ◽  
Optical Phonon Frequency

Application of the nonuniform-field treatment to the infrared properties of LiF

1969 ◽  
Vol 47 (1) ◽  
pp. 51-64 ◽  
Author(s):  
A. J. Beaulieu
Keyword(s):  
Thin Films ◽  
Optical Phonon ◽  
Phonon Frequency ◽  
Quantitative Agreement ◽  
Longitudinal Optical ◽  
Optical Frequency ◽  
Nonuniform Field ◽  
Optical Phonon Frequency ◽  
Experimental Values ◽  
Comparison Of The Results

The "nonuniform-field treatment" developed earlier for infinitely thick crystals is applied to the LiF crystal. Comparison with experimental results both at 45° and at small angles of incidence gives good quantitative agreement only when the ratio of the longitudinal optical frequency to the transverse optical frequency is assumed to be 1.7 instead of 2.2 as predicted by the Lyddane–Sach–Teller relation. An extension of the treatment to thin films is presented and the comparison of the results with Berreman's experimental values indicates that the asymmetry and the amplitude of the features which could not be explained before can be predicted in terms of the nonuniform-field treatment, again provided the optical phonon frequency ratio is 1.7.

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