Absorption Studies of the Sulphur Donor in GaSb |
| P. Kaczora, A.M. Gerritsb, L. Dobaczewskia, Z. Kalińskia and A. Wittlinb aInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland bHigh Field Magnet Laboratory - University of Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands |
| Full Text PDF |
| The shallow-deep bistability of the sulphur-related DX centre in GaSb is demonstrated. After photoexcitation of the defect with the near-band gap light the metastable inter-donor transition in the far infrared can be observed. This observation allowed us to evaluate the polaron effective mass and polaron coupling constant for the material. |
| DOI: 10.12693/APhysPolA.87.399 PACS numbers: 71.55.Eq, 71.70.Ej, 78.50.Ge |