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

Canko, Osman; Erdinc, Ahmet; Taskin, Ferhat; Yıldırım, Ali

doi:10.1016/j.jmmm.2011.08.046

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, sa.4, ss.508-513, 2012 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 324 Sayı: 4
Basım Tarihi: 2012
Doi Numarası: 10.1016/j.jmmm.2011.08.046
Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.508-513
Erciyes Üniversitesi Adresli: Evet

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.