The reflectivity spectra of Cd1-xFexSe (x = 0, 0.07 and 0.14) have been measured in the energy range 10-25 eV and structures have been assigned to transitions from the Cd 4d and Se 5s states to the conduction bands. The assignment has been supported by theoretical ab-initio calculations of the band structure and the optical properties of pure hypothetical zinc blende CdSe. The band structure and the density of states have been obtained using the self-consistent relativistic LMTO method. The theoretical spectrum has been calculated with the inclusion of k-dependent transition matrix elements. The energy shifts of the maxima as die Fe concentration increases have been discussed.
Cd(1-x)Fe(x)Se room temperature reflectivity in the 10-25 eV energy range / Piacentini, Mario; D., Debowska; Kisiel, A; Markowski, R; Mycielski, A; N., Zema. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - 5:(1993), pp. 3707-3716. [10.1088/0953-8984/5/22/022]
Cd(1-x)Fe(x)Se room temperature reflectivity in the 10-25 eV energy range
PIACENTINI, Mario;
1993
Abstract
The reflectivity spectra of Cd1-xFexSe (x = 0, 0.07 and 0.14) have been measured in the energy range 10-25 eV and structures have been assigned to transitions from the Cd 4d and Se 5s states to the conduction bands. The assignment has been supported by theoretical ab-initio calculations of the band structure and the optical properties of pure hypothetical zinc blende CdSe. The band structure and the density of states have been obtained using the self-consistent relativistic LMTO method. The theoretical spectrum has been calculated with the inclusion of k-dependent transition matrix elements. The energy shifts of the maxima as die Fe concentration increases have been discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.