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cond-mat.mtrl-sci2004
Smearing of phase transition due to surface effect in ferroelectric nanostructures
A. M. Bratkovsky, A. P. Levanyuk
The boundary conditions, customarily used in the Landau-type approach to ferroelectric thin films and nanostructures, have to be modified to take into account that a surface of a f…
cond-mat.mtrl-sci2003
On phase transitions in Pb/Ge(111) and Sn/Ge(111)
A. Cano, A. P. Levanyuk
The present communication is a critical examination of two points relevant to the surface phase transitions of Pb and Sn overlayers on Ge(111). One is connected with the reading of…