简介：

简介：

简介：

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简介：

简介：TheadsorptionanddiffusionofNatomsonthethreelow-indexCuplaneswerestudiedusing5-parameterMorsepotential(5-MP)method,andthebesttheory-experimentagreementwasobtained.NatomsofCu(100)surfacesitonthefourfoldhollowsitewiththeverticalheightof0.018nmcloselycoplanarwiththetopmostcopperlayer,andthefourCu-Nbondlengthsare0.182nmandthefifthCu-Ndistanceis0.199nm.ForCu(111)system,theexistenceofaberrantCu(100)reconstructedstructureisapprovedathighercoverage,andatlowcoveragethestructureisalmostanidealCu(111)surfacestructure.WithrespecttoCu(110)system,theNatomsareadsorbedatLBandH3sites,notatSBsite.ThediffusionpassageanddiffusionbarrierofadsorbedNatomswerealsostudied.