Influence of Impurity Charge Correlation on Free-Carrier Absorption |
| W. Szuszkiewicz, P. Sobkowicz, B. Witkowska Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland W. Bardyszewski Institute of Theoretical Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland C. Julien and M. Balkanski Laboratoire de Physique des Solides (unité associé an CNRS 154), Université Pierre et Marie Curie, 4, pl. Jussieu, 75252 Paris, France |
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| Impurity-mediated free-carrier absorption was analyzed theoretically taking into account the possible spatial impurity correlations. The effect of correlations was included via the structure factor S(q) obtained from finite temperature Monte Carlo simulations of ordering in the impurity system. From the comparison of the experimental data with the results of calculations it is demonstrated that the ordering of charged centers exists for HgSe:Fe in a wide temperature range. |
| DOI: 10.12693/APhysPolA.84.559 PACS numbers: 71.45.Gm, 72.30.+q, 75.50.Pp |