Comment on "Weak localization in GaMnAs: evidence of impurity band transport" by L. P. Rokhinson et. al. (Phys. Rev. B, 76, 161201 R; arXivCond-mat:0707.2416)
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❄️ cond-mat.mes-hall
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arxivcond-matbandcommentdiscussionevidencefieldsgamnasimpurity
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We suggest that negative magnetoresistance in small magnetic fields at temperatures lower than 3 K reported in the paper under discussion may be related to superconducting transition in In leads (with Tc = 3.4 K).
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