Some characteristic behavior of mixed spin-1/2 and spin-1 Ising nano-tube


Canko O., Erdinc A., Taskin F., Yıldırım A. F.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.324, ss.508-513, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 324 Konu: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jmmm.2011.08.046
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Sayfa Sayıları: ss.508-513

Özet

The magnetization of a cylindrical Ising nano-tube is investigated by the use of the effective field theory with correlations. The effects of the crystal field couplings at the surface shell to the order parameters, susceptibility, internal energy, specific heat and free energy are investigated. Some characteristic phenomena are examined in the thermal variations, depending on crystal field term. Moreover, tricritical and critical points are found on the (D/J,kT/J) plane, where D/J and kT/J are reduced crystal-field and temperature, respectively. (C) 2011 Elsevier B.V. All rights reserved.