The Influence of Pressure on the Formation of FM/AF Configurations in LSMO Films: A Monte Carlo Approach
| Autor: | Francy Nelly Jiménez-García, J.D. Agudelo-Giraldo, Hugo Hernán Ortíz-Álvarez, Carolina Márquez-Narváez, Elisabeth Restrepo-Parra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
General Computer Science dipolar interaction Monte Carlo method strips 02 engineering and technology manganites 01 natural sciences lcsh:QA75.5-76.95 Theoretical Computer Science symbols.namesake Condensed Matter::Materials Science pressure 0103 physical sciences Thin film Anisotropy 010302 applied physics Zeeman effect Condensed matter physics Applied Mathematics Exchange interaction 021001 nanoscience & nanotechnology Manganite Ferroelectricity Heisenberg labyrinths Modeling and Simulation symbols Curie temperature lcsh:Electronic computers. Computer science 0210 nano-technology |
| Zdroj: | Computation Volume 8 Issue 4 Computation, Vol 8, Iss 93, p 93 (2020) |
| ISSN: | 2079-3197 |
| DOI: | 10.3390/computation8040093 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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