학술논문
Optical and transport properties of Fe-doped [Cd.sub.x][Hg.sub.1-x]Se (x = 0.35)
Document Type
Author abstract
Author
Source
Inorganic Materials. May, 2007, Vol. 43 Issue 5, p466, 5 p.
Subject
Language
English
ISSN
0020-1685
Abstract
The optical and transport properties of Fe.sup.2+-doped [Cd.sub.x][Hg.sub.1-x]Se crystals with a midgap Fe.sup.2+ level have been studied. The results demonstrate that Fe.sup.2+ ions influence both the optical and transport properties of [Cd.sub.x][Hg.sub.1-x]Sea(c)[Fe.sup.2+]aa. The observed optical absorption bands are due to a donor Fe.sup.2+ level in the band gap, with a depth E .sub.Fe = 0.21 eV, and to band-band transitions. Thermal anneals in Hg and Se vapors have different effects on the carrier concentration and mobility in the crystals. The effect of annealing on the transport properties of the Fe.sup.2+-doped crystals differs from that for undoped crystals and is governed by the state of point defects.