Crystal dynamics of zinc chalcogenides I: an application to ZnSCrystal dynamics of zinc chalcogenides I: an application to ZnS

Authors

JAY PRAKASH DUBEY
RAJ KISHOR TIWARI
KRIPA SHANKAR UPADHYAYA
PRAMOD KUMAR PANDEY

DOI

10.3906/fiz-1412-11

Abstract

A van der Waals three body force rigid shell model (VTRSM) developed earlier for NaCl and CsCl structure was expanded by us for zinc blende structure (ZBS). This model includes the effect of three body interactions and van der Waals interactions in the rigid shell model where short-range interactions were considered up to the second neighbor. Our model thus developed was applied to study the phonon dispersion curves, Debye temperature variation, two phonon Raman/IR spectra, and anharmonic elastic properties of ZnS. Our results are in good agreement with the measured data wherever available.

Keywords

Phonons, van der Waals interactions, Debye temperature, combined density of states curve, Raman spectra, zinc sulfide, phonon dispersion curves, lattice dynamics

First Page

242

Last Page

253

Recommended Citation

DUBEY, JAY PRAKASH; TIWARI, RAJ KISHOR; UPADHYAYA, KRIPA SHANKAR; and PANDEY, PRAMOD KUMAR (2015) "Crystal dynamics of zinc chalcogenides I: an application to ZnSCrystal dynamics of zinc chalcogenides I: an application to ZnS," Turkish Journal of Physics: Vol. 39: No. 3, Article 3. https://doi.org/10.3906/fiz-1412-11
Available at: https://journals.tubitak.gov.tr/physics/vol39/iss3/3