Phenomenological Theory of the Incommensurate Phase Transition in Thin Films

Authors: Charnaya E.V.¹; Ktitorov S.A.²; Pogorelova O.S.³

Source: Ferroelectrics, Volume 297, Number 1, 2003 , pp. 29-37(9)

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Abstract:

The phenomenological theory of the incommensurate phase transition in thin films is presented for the case of the single-component order parameter. The distribution of the order parameter over the film was obtained under the assumption of slowly-varying amplitude. The size effect on the temperature of the phase transition into the incommensurate phase was considered.

Keywords: Incommensurate phase; thin film; phase transition; Landau theory

Document Type: Research article

Affiliations: 1: Institute of Physics, St. Petersburg State University, Petrodvorets, St. Petersburg 198504, Russia 2: A.F. Ioffe Physico-Technical Institute RAS, St. Petersburg 194021, Russia 3: Department of Physics, St. Petersburg State Medical University, St. Petersburg 195067, Russia

Publication date: 2003-01-01