Photoluminescence of GaSb under hydrostatic pressure |
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Authors: | RA Noack WB Holzapfel |
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Institution: | IV. Phys. Inst. University of Stuttgart and Max-Planck-Institut für Festkörperforschung, 7000 Stuttgart 80 Federal Republic of Germany |
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Abstract: | Photoluminescence measurements on GaSb samples were carried out at low temperatures (2 – 5 K) and high pressures (0 – 9 kbar). The energy shift of the direct gap was determined: . At pressures above 8 kbar the spectra showed additional structure from the indirect L-conduction band minima. The energy shift of the L-conduction bands were determined: From these data the critical pressure for the inversion of the two conduction bands was calculated: . |
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