Author/Authors :
Katagiri، نويسنده , , Masahiko and Nozue، نويسنده , , Yasuo and Terasaki، نويسنده , , Osamu and Kubo، نويسنده , , Momoji and Miyamoto، نويسنده , , Akira and Vessal، نويسنده , , Behnam and R. Coley، نويسنده , , Terry and Sean Li، نويسنده , , Yongsheng and M. Newsam، نويسنده , , John، نويسنده ,
Abstract :
We present the anharmonicity and roughening of Cu surfaces derived from the derivatives of the layer spacings and the surface energies with respect to temperature using the embedded-atom molecular dynamics method. The anharmonicity and roughening of the Cu(110) surface started to increase rapidly around 600 K and 1000 K respectively. In addition, we present the dependence of the surface energy on the temperature for the heteroepitaxial Au/Ag(110) system. The slope of the surface energy was found to be less pronounced compared with that of the free Ag(110) surface system.
