Author:
Xiao Xi-Feng ,Kang Jun-Yong ,
Abstract
VoltagetransientsduetothethermalelectroncaptureandemissionofDXcentersinn typeSn dopedAl0 . 2 6 Ga0 .74Aswere
measuredbytheconstantcapacitancetechniqueandtransformedbyLaplacedefectspectroscopy (LDS) .Byanalyzingthevariationsofdiscreteemissionrateswithdifferentcaptureperiods,correspondingrelationsbetweendiscretecaptureandemissionratesandcapturecoefficientsweredetermined .ThefinestructuresofelectroncapturebarriersoftheSn relatedDXcenterswereobtainedbylinearfittingthedataoftemperature dependencesofthecapturecoefficients.TheresultscalcuatedbyusingthefirstprinciplepseudopotentialmethodshowthatthefinestructuresofthecapturebarriersmainlycontributetoAl GaatdifferentlocalconfigurationsnearSnatomsduetothealloyrandomeffect.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
4 articles.
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