Optical Properties of HgMgMnTe Crystals |
| V.M. Frasunyak, M.P. Gavaleshko and I.G. Orletskii Department of Physical Electronics, State University, 2 Kotsubinsky str., Chernivtsi, 274012, Ukraine |
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| Optical properties of new semimagnetic semiconductors of Hg1-x-yMgxMnyTe (x < 0.10, y < 0.10) in the fundamental absorption region at T = 290 K and 80 K were investigated. A shift of absorption band edge was revealed when composition and temperature changed. The energy gap and its temperature coefficient were evaluated as well as analytical expressions which describe Eg(x,y,T) for quaternary solid solutions were analysed. |
| DOI: 10.12693/APhysPolA.87.237 PACS numbers: 75.50.Pp, 78.20.Dj, 78.30.Fs |