The effect of a single-ion anisotropy on the phase diagram of a mixed ferro-ferrimagnetic ternary alloy

Bobák, A; Dely, J

The effect of a single-ion anisotropy on the phase diagram of a mixed ferro-ferrimagnetic ternary alloy

A Bobák and J Dely

Physica A: Statistical Mechanics and its Applications, 2004, vol. 341, issue C, 281-298

Abstract: The phase diagram of the ABpC1−p mixed ferro-ferrimagnetic ternary alloy consisting of Ising spins sA=1, sB=32, and sC=12 is investigated by the use of a mean-field theory based on the Bogoliubov inequality for the Gibbs free energy. The effect of the single-ion anisotropy on the transition temperature is discussed and topologically different kinds of phase diagrams are achieved by changing values of the parameters in the model Hamiltonian. Besides second-order transitions, lines of first-order transitions terminating either at a tricritical point, or an isolated critical point, are found. The former lines separate ferrimagnetic (or ferromagnetic) and paramagnetic phases, while the latter separate two ordered ferrimagnetic phases within the ordered region.

Keywords: Mixed Ising spins; Molecular magnets; Single-ion anisotropy; Tricritical point (search for similar items in EconPapers)
Date: 2004
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437104005357
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:341:y:2004:i:c:p:281-298

DOI: 10.1016/j.physa.2004.04.117

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().