Reflectivity Spectra of Cd_{1-x}Mn_{x}F_{2} in the 5-35 eV Energy Range

• Authors: R. Francini , M. Zimnal-Starnawska , N. Zema , B. Orłowski
• Languages of publication: EN

Abstracts

EN

The reflectivity spectra of Cd_{1-x}Mn_{x}F_{2} crystals, in the 5-35 eV energy range at 300 and 77 K, were investigated. The observed changes in the shape of spectra, caused by increase of the Mn content, are compared with the calculated band structure of pure CdF_{2} and with the already available results of XPS experiments for these crystals. The increasing concentration of Mn results in the blurring of the reflectivity structures and shifts the energy of direct exciton (as compared to pure CdF_{2}). Qualitative arguments (hybridization of Mn^{2+} 3d and F^{-} 2p states) can describe these effects but a quantitative explanation would require a detailed band structure calculation for these compounds.

Keywords

EN

78.40.Ha

Discipline

• 78.40.Ha: Other nonmetallic inorganics

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 80
• Issue: 3
• Pages: 453-456

Dates

published

1991-09

Contributors

author

R. Francini

• Dipartimento di Fisica della Seconda Universita, Via Orazio Raimondo, 00173 Roma, Italy

author

M. Zimnal-Starnawska

• Dipartimento di Fisica della Seconda Universita, Via Orazio Raimondo, 00173 Roma, Italy

author

N. Zema

• Istituto di Struttura della Materia del C.N.R., Via E. Fermi 38, 00044 Frascati, Italy

author

B. Orłowski

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

Identifiers

DOI

10.12693/APhysPolA.80.453