Raed H. AL-Saqa, Siham J. AL-Taie, “Theoretical study of mechanical, elastic and phonon frequency spectrum properties for GaAs at high pressure”, J. Sib. Fed. Univ. Math. Phys., 2019, Volume 12, Issue 3,Pages <nobr>371

This article is cited in 3 papers

Theoretical study of mechanical, elastic and phonon frequency spectrum properties for GaAs at high pressure

Raed H. AL-Saqa^a, Siham J. AL-Taie^b

^a Tatwaan Secondary School, Directorate General of Education, Province of Nineveh, Iraq
^b Alnoor University college, Iraq

Abstract: The calculations for variations of bulk modulus $(B)$, compression volume $\Big(\frac{V_p}{V_o} \Big),$ lattice constant and phonon frequency spectrum (pfs) under high pressure up to $17$ GPa at room temperature has been carried out. Three equations of state (EOSs) including (Birch–Murnaghan, Vinet and modified Lennard–Jouns) are used in the calculations. The variations of these properties under such high pressure for GaAs are obtained and we got suitable EOS for it.

Keywords: equation of state, Bulk modulus, compression, lattice parameter, phonon frequency spectrum.

UDC: 517.9

Received: 25.12.2018
Received in revised form: 22.02.2019
Accepted: 26.03.2019

Language: English

DOI: 10.17516/1997-1397-2019-12-3-371-378