Phase Transitions in a Two-Dimensional Dipole Ferrimagnet

作者:Karetnikova I R*; Mukhamatchin K R; Nefedov I M; Sapozhnikov M V; Fraerman A A; Shereshevskii I A
来源:Journal of Experimental and Theoretical Physics, 2014, 118(3): 432-441.
DOI:10.1134/S1063776114030042

摘要

The magnetic configurations of the system of magnetic dipoles that have different values and are arranged in a staggered order on a square lattice are studied. A numerical simulation is used to study the phase transitions in the system when the mismatch between the dipoles changes. The restructuring of the magnetic configuration of the system induced by a change in the mismatch is shown to proceed via sequential second-order phase transitions between collinear and noncollinear phases. The numerical simulation results are supported by analytical calculations performed with trial functions.

  • 出版日期2014-3