Peculiarities of Electron Transport in PbTe:Cr due to Presence of Resonant Impurity State
E. Grodzicka, W. Dobrowolski, J. Kossut, T. Story and B. Witkowska
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
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The results of transport investigation of Pb1-xCrxTe (x ≤ 0.009) in temperature range 3.5-300 K are presented. The obtained electron concentration and electron mobility vs. temperature and Cr concentration data are interpreted and discussed within the model assuming that Cr in PbTe forms a donor state resonant with the conduction band.
DOI: 10.12693/APhysPolA.84.599
PACS numbers: 72.20.Fr, 72.10.Fk, 72.80.Jc