Phase diagram of the Ising model with next-nearest-neighbour interactions

Ganikhodjaev, Nasir and Zakaria, Siti Fatimah (2011) Phase diagram of the Ising model with next-nearest-neighbour interactions. Australian Journal of Basic and Applied Sciences, 5 (2). pp. 173-181. ISSN 1991-8178

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Abstract

We study the phase diagram of the Ising model on a Cayley tree with competing prolonged next-nearest neighbour Jp and one-level next-nearest neighbour interactions J0. Vannimenus proved that the phase diagram of Ising model with competing neareast-neighbour interaction J1 and prolonged next-nearest neighbour interactions Jp contains a modulated phase, as found for similar models on periodic lattices. Later Mariz et al generalized this result for Ising model with Jo … 0. For given lattice model on a Cayley tree, i.e., Jp … 0; Jo … 0 with J1 = 0 we describe phase diagram and clarify the role of nearest-neighbour interaction J1 and show that the class of modulated phases consists of socalled antiphase with period 4 only.

Item Type:	Article (Journal)
Additional Information:	4430/7136
Uncontrolled Keywords:	Lattice models, Cayley tree, prolonged next-nearest neighbour, one-level next-nearest neighbour, modulated phase.
Subjects:	Q Science > QA Mathematics Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Computational and Theoretical Sciences
Depositing User:	Prof. Nasir Ganikhodjaev
Date Deposited:	18 Nov 2011 12:27
Last Modified:	20 Nov 2019 16:07
URI:	http://irep.iium.edu.my/id/eprint/7136

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