The hysteresis loops of FM/AFM two-layer Bethe lattice


Albayrak E.

PHASE TRANSITIONS, vol.82, no.7, pp.541-550, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 82 Issue: 7
  • Publication Date: 2009
  • Doi Number: 10.1080/01411590903077619
  • Title of Journal : PHASE TRANSITIONS
  • Page Numbers: pp.541-550

Abstract

The distinct hysteresis loops (HLs) of ferromagnetic/antiferromagnetic (FM/AFM) two-layer Bethe lattice with the Ising spins of the top layer having only FM interactions and the bottom ones having only AFM interactions with the interlayer coupling is either FM or AFM type are studied by using a pairwise approach. The sublattice magnetizations are studied by increasing and decreasing the external magnetic field (H) to obtain the HLs. The shapes of the HLs are strongly dependent on the competitions among the system parameters and on the phase configurations. The HLs are formed only when the AFM-type interactions are involved. The small loops of hysteresis are also formed because of the reentrant behavior in the FM region.