Author/Authors :
Urban، نويسنده , , D.F. and Bürki، نويسنده , , J. and Yanson، نويسنده , , A.I. and Yanson، نويسنده , , I.K. and Stafford، نويسنده , , C.A. and van Ruitenbeek، نويسنده , , J.M. and Grabert، نويسنده , , Hermann، نويسنده ,
Abstract :
Experimental conductance histograms for Na nanowires are analyzed in detail and compared to recent theoretical results on the stability of cylindrical and elliptical nanowires, using the free-electron model. We find a one-to-one correspondence between the peaks in the histograms and the most stable nanowire geometries, indicating that several of the commonly observed nanowires have elliptical cross sections.