Thermodynamic Stability of Two Rhombohedral Phases of Si_{0.5}Ge_{0.5} Alloy

• Authors: P. Bogusławski
• Languages of publication: EN

Abstracts

EN

Thermodynamic stability of two ordered phases, RS1 and RS2, of Si_{0.5}Ge_{0.5} alloy is considered. Bulk and surface formation enthalpies are calculated using the model Tersoff's potential. RS2 structure is unstable, but its (001) ordered surface is stable against segregation. Properties of RS1 are just the opposite.

Keywords

EN

61.55.Hg; 68.35.Md; 68.60.Dv

Discipline

• 68.60.Dv: Thermal stability; thermal effects
• 68.35.Md: Surface thermodynamics, surface energies(see also 05.70.Np Interface and surface thermodynamics in statistical physics, thermodynamics and nonlinear dynamical systems; 65.40.gp Surface energy in thermal properties of condensed matter)

• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 80
• Issue: 2
• Pages: 299-302

Dates

published

1991-08

Contributors

author

P. Bogusławski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.80.299