Pre-Melting in Cubic Structure with Relaxation
T. Gwizdałła and J. Czerbniak
Solid State Physics Dept., University of Łódź, Pomorska 149/153, 90-236 Łódź, Poland
Received: July 6, 1998; in final form September 29, 1998
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We study the effect of melting of well-defined crystal surface within the frame of theory of atomic vibrations in harmonic approximation. We find that for two types of cubic crystal lattice: face centered cubic and body centered cubic, we may expect the existence of pre-melting. It is also shown that the occurrence or absence of surface melting depends strongly on the relaxation of lattice constant.
DOI: 10.12693/APhysPolA.94.785
PACS numbers: 63.20.-e, 68.35.Ja