Ground-state properties and high-pressure phase of beryllium chalcogenides BeSe, BeTe, and BeS
- 1 November 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (17), 11861-11864
- https://doi.org/10.1103/physrevb.54.11861
Abstract
We present an ab initio pseudopotential study within the local density approximation of the ground-state and high-pressure phases of BeSe, BeTe, and BeS. We analyze the zinc-blende, NaCl, CsCl, NiAs, and β-Sn structures. By calculating the total energy, atomic forces, and stress tensors we determine the structural parameters (lattice constants, bulk moduli, etc.) of these compounds and the transition pressure from the zinc-blende (B3) to the NiAs (B8) phase. The structural parameters and transition pressure for BeSe and BeTe compare quite well with recent experimental results. For BeS our results are predictions. © 1996 The American Physical Society.Keywords
This publication has 18 references indexed in Scilit:
- Phase transformation of BeSe and BeTe to the NiAs structure at high pressurePhysical Review B, 1995
- First-principles calculations of the structural properties, stability, and band structure of complex tetrahedral phases of germanium: ST12 and BC8Physical Review B, 1993
- High-pressure phase of gallium nitridePhysical Review B, 1991
- High-pressure phases of III-V zinc-blende semiconductorsPhysical Review B, 1987
- High-pressure phase transitions and the equations of state of BaS and BaOPhysical Review B, 1986
- Structural and electronic properties of the high-pressure hexagonal phases of SiPhysical Review B, 1984
- Structural properties of III-V zinc-blende semiconductors under pressurePhysical Review B, 1983
- High pressure phases of III–V semiconductors: A microscopic theorySolid State Communications, 1982
- One-Particle Properties of an Inhomogeneous Interacting Electron GasPhysical Review B, 1966
- Self-Consistent Equations Including Exchange and Correlation EffectsPhysical Review B, 1965