Journal
PHYSICA B
Volume 298, Issue 1-4, Pages 531-535Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4526(01)00377-5
Keywords
Bi2Se3; Shubnikov-de Haas effect
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The influence of magnetic impurity Fe on single crystals Bi, Se, was investigated in high magnetic fields up to 40 T by Shubnikov-de Haas (SdH) effect. The samples were characterized by measurements of the Hall coefficient and the temperature dependence of resistance. From the SdH effect and the Hall effect it was found that the doping of Bi, Se, single crystals by Fe leads to an increase in the concentration of free electrons. The effect is ascribed to the presence of point defects formed by ionized iron atoms occupying interstitial positions in the crystal lattice. We have not observed any noticeable effect of Fe as a magnetic impurity. (C) 2001 Published by Elsevier Science B.V.
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