Hysteresis behaviors in a cylindrical Ising nanowire


KESKİN M. , ŞARLI N., Deviren B.

SOLID STATE COMMUNICATIONS, cilt.151, ss.1025-1030, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 151
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.ssc.2011.04.019
  • Dergi Adı: SOLID STATE COMMUNICATIONS
  • Sayfa Sayısı: ss.1025-1030

Özet

The hysteresis behaviors of the cylindrical Ising nanowire are investigated within the effective-field theory with correlations at temperatures below, around and above the critical temperature. The hysteresis curves are obtained for different reduced temperatures both ferromagnetic and antiferromagnetic interactions between the shell and the core. We find that the hysteresis loop areas decrease when the reduced temperatures increase, and the hysteresis loops disappear at certain reduced temperatures. Moreover, for the antiferromagnetic nanowire the hysteresis loop areas disappear earlier than the ferromagnetic case as the reduced temperature increases. An unusual form of triple hysteresis behaviors is observed for the antiferromagnetic nanowire system. The thermal behaviors of the coercivities and remanent magnetizations are also investigated. The results are in good agreement with some experimental and theoretical results. (C) 2011 Elsevier Ltd. All rights reserved.