title: Optical characterization of a Cd(0.85)Mg(0.15)Se mixed crystal.
abstract: We present an optical characterization of a Bridgman-grown wurtzite-type Cd(0.85)Mg(0.15)Se mixed crystal in the near-band-edge interband transitions using temperature-dependent contactless electroreflectance (CER) and photoreflectance (PR) in the temperature range 15-400 K. The interband excitonic transitions A and C originating from the band edge and spin-orbital splitting critical points of the sample, respectively, have been observed in the CER/PR spectra. The transition energies and broadening function of the excitonic features are determined via a lineshape fit to the CER/PR spectra. The parameters that describe the temperature dependence of the transition energies of excitons A and C, and the broadening function of exciton A, are evaluated and discussed.
authors.affiliation: Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
authors.forename: P J
authors.initials: PJ
authors.lastname: Huang
authors.forename: Y S
authors.initials: YS
authors.lastname: Huang
authors.forename: F
authors.initials: F
authors.lastname: Firszt
authors.forename: S
authors.initials: S
authors.lastname: Lęgowski
authors.forename: H
authors.initials: H
authors.lastname: Męczyńska
authors.forename: K K
authors.initials: KK
authors.lastname: Tiong