摘要
AKondo-likeeffect,namely,theupturnofresistivityatlowtemperatures,isobservedinperovskitemanganitewhennonmagneticinsulatorsaredopedassecondaryphase.Inthispaper,thelow-temperatureresistivityupturneffecthasbeenarguedtooriginatefrominterfacialmagneticphasereconstruction.HeisenbergspinlatticeshavebeensimulatedusingtheMonteCarlomethodtorevealphasecompetitionaroundsecondaryphaseboundary,namely,manganite-insulatorboundarythatbehaveswithaweakantiferromagnetictendency.Moreover,theresistornetworkmodelbasedondouble-exchangeconductivemechanismreproducesthelow-temperatureresistivityupturneffect.Ourworkprovidesareasonablephysicalmechanismtounderstandthenoveltransportbehaviorsinmicrostructuresofcorrelatedelectronsystems.
出版日期
2016年06月16日（中国期刊网平台首次上网日期，不代表论文的发表时间）
