Low-temperature magnetization in nanofilms

Vjekoslav Sajfert, Dušan Popov and Bratislav Tošić

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 4, 325-331

Abstract: The low-temperature magnetization of a film was analyzed by the use of exact Bose representation of spin operators that does not suffer from the presence of unphysical states. The magnetization of thin films has exponentially small temperature correctness, so that Dyson’s proof about exponentially small correction coming from two bosons at ideal lattice point cannot be used in film analyses. The main conclusions of this work are that magnetic lattice of a thin film is more rigid than the macroscopic lattice and that the autoreduction process (the three layer film divides into two layer subfilms) takes place in the film.

Keywords: Ultrathin magnetic films; Low-temperature magnetization; Exact Bose representation; Two small parameters autoreduction; Qualitative difference nano and macrostructures (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:4:p:325-331

DOI: 10.1016/j.physa.2008.10.020

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