X-Ray Absorption Near Edge Spectra for CdTe - Theoretical Study

• Authors: J. Oleszkiewicz , R. Markowski , A. Kisiel
• Languages of publication: EN

Abstracts

EN

The theoretical band structure of the CdTe was calculated using conventional, ab initio, self-consistent, relativistic LMTO method. The projected density of states and the dielectric function were produced within the local density approximation. Spin-orbit coupling was included in the perturbation approach. X-ray absorption spectra for the Cd L_{1,3}- and Te L_{1,3}-edges were calculated and the results compared with experimental data. The teoretical results were obtained from the calculations with inclusion of k-dependent transition matrix elements, spin-orbit coupling, extended set of basis functions and finite lifetime of initial and final states. They were compared with other calculations which use common constant matrix element approximation. The work presents final conclusion concerning validity of using constant matrix element approximation within one-electron scheme.

Keywords

EN

78.70.Dm; 78.20.Bh; 78.20.Dj

Discipline

• 78.70.Dm: X-ray absorption spectra
• 78.20.Bh: Theory, models, and numerical simulation

• Journal: Acta Physica Polonica A
• Year: 1992
• Volume: 82
• Issue: 2
• Pages: 323-328

Dates

published

1992-08

Contributors

author

J. Oleszkiewicz

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

R. Markowski

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

A. Kisiel

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

Identifiers

DOI

10.12693/APhysPolA.82.323