Author:
Xu Hui ,Song Wei-Pu ,Li Xin-Mei ,
Abstract
Aconductancemodelofelectronictunnelingtransferissetup,andanewD .Cconductanceformulainone dimensionaldisorderedsystemisderived .BycalculatingtheD .Cconductivity,therelationshipamongtheelectricfield、temperatureandconductivityisanalyzed ,andtheeffectofdisordereddegreeontheD .Cconductanceisdiscussed .Theresultshowsthattheconductivityofadisorderedsystemdecreaseswiththeincreaseofdisordereddegree.Whentheelectricfieldisweak ,itsconductivityishighandhasaseriesofpeakvalues.Hewever,whentheelectricfieldisstrong,itsconductivityisweak.Inthelow temperatureregion,thedisorderedsystemshowsacharacteristicofnegativedifferentialdependenceofresistanceandtemperature.Onthecontrary,itsconductivitydecreaseswiththeriseoftemperatureinthehigh temperatureregion.Thisresultisingoodagreementwiththeexperiments.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
7 articles.
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