Liquid Nitrogen Temperature Reflectivity Spectra of Zn_{1-x}Mn_{x}Se and Zn_{1-y}Fe_{y}Se Mixed Crystals

• Authors: M. Zimnal-Starnawska , D. Dębowska , A. Kisiel , M. Piacentini , F. Lama , N. Zema , W. Giriat
• Languages of publication: EN

Abstracts

EN

The liquid nitrogen temperature reflectivity spectra of the tetrahedral diluted magnetic semiconductors (DMS's) Zn_{1-y}Fe_{y}Se and Zn_{1-x}Mn_{x}Se crystallizing in the zinc-blende structure were investigated. The reflectivity measurements for different concentration of Fe (y = 0.01, 0.05, and 0.10) and Mn (x = 0.10 and 0.30) ions were taken out in a wide energy range between 4 and 30 eV using synchrotron radiation from ADONE storage ring in Frascati. The average resolution ΔE/E used for these measurements was better than 1 × 10^{-3} over the entire spectral range. The single crystals were cleaved, before being mounted inside the reflectometer, from the samples grown by the Bridgman method. The comparison between the reflectivity spectra of ternary systems and host crystal ZnSe is made. The changes of the structures of reflectivity spectra of host crystal ZnSe caused by the influence of Fe and Mn ions are discussed.

Keywords

EN

78.40.Fy

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1994
• Volume: 86
• Issue: 5
• Pages: 869-874

Dates

published

1994-11

Contributors

author

M. Zimnal-Starnawska

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

author

D. Dębowska

• 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

author

M. Piacentini

• Dipartimento di Energetica, Università "La Sapienza", via Scarpa 14, 00136 Roma, Italy

author

F. Lama

• Istituto di Struttura della Materia CNR, via E. Fermi 38, 00044 Frascati, Italy

author

N. Zema

• Istituto di Struttura della Materia CNR, via E. Fermi 38, 00044 Frascati, Italy

author

W. Giriat

• Istituto Venezolano Investigazione Cientifica, Centro de Fisica, Caracas, Apartado 21828, Venezuela