Monte-Carlo investigation of competition between uniaxial anisotropy, exchange and dipolar interactions in critical behavior of ultrathin magnetic films

Soldusova, Anna P.; Прудников, П. В.; Прудников, В. В.

doi:10.1088/1742-6596/681/1/012017

Cited by 1 publication

(2 citation statements)

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“…Previous theoretical and experimental studies have reported the appearance of magnetic configurations in geometric forms (textures), in the fundamental state of magnetic systems, for which the dipolar interaction plays an important role. For example, configurations of magnetic domains in the form of a chessboard, stripes along the field direction, or labyrinths structures have been reported [30,31].…”

Section: Magnetic Configurationsmentioning

confidence: 99%

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The Influence of Pressure on the Formation of FM/AF Configurations in LSMO Films: A Monte Carlo Approach

et al. 2020

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In this work, Monte Carlo simulations of magnetic properties of thin films, including the influence of an external pressure, are presented. These simulations were developed using a Hamiltonian composed by terms that represent the exchange interaction, dipolar interaction, Zeeman effect, monocrystalline anisotropy, and pressure influence. The term that represents the pressure influence on the magnetic properties was included, since for many applications, magnetic materials are a part of a multiferroic material together with a piezoelectric or a ferroelectric compound. Initially, the model was developed using generic parameters, in order to probe its suitable performance; after that, parameters were adjusted for simulating thin films of La0.67Sr0.33MnO3, a manganite with several technological applications because its Curie temperature is greater than room temperature. Including the pressure influence, it was observed the formation of several kind of FM/AF configurations as strip, labyrinth, and chess board forms. Furthermore, it was observed that, as the pressure increased, the critical temperature tended to decrease, and this result was in agreement with experimental reports.

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Section: Magnetic Configurationsmentioning

confidence: 99%

“…Finally, the constant g provides a measure of the intensity of the dipolar interaction between all the pairs of magnetic moments in the sample. This dipolar interaction forces nearby magnetic moments within the same plane xy to be aligned antiparallel [30].…”

Section: Magnetic Configurationsmentioning

confidence: 99%