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Exact thermodynamic behavior of a generalized spin-isospin ising system on the Bethe lattice
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1989
(EN)
EKT historical period
Title
Exact thermodynamic behavior of a generalized spin-isospin ising system on the Bethe lattice (EN)
Creator
Papatriantafillou, C (EN)
Krikos, C (EN)
Paraskevaidis, CE (EN)
Panagopoulos, P (EN)
Description
We study a generalized Ising system consisting of a Bethe lattice on every site of which two spin-1/2 and two isospin-1/2 (or atomic species A) states can be realized, the spin-species interacting with appropriate nearest neighbor couplings. The system is equivalent to that of four states per site and we obtain its exact thermodynamic behavior. The case of a fixed concentration of species is the annealed or liquid magnetic binary alloy. The temperature dependence of the short-range-order (SRO) parameter of such systems is obtained as an application of the theory and discussed in connection with relevant material from the literature. When fixing both the concentration and the nearest neighbor spatial correlation of the species, we obtain Eggarter's formulas for the ""frozen-in"" species problem, which therefore are only approximately valid even on the Bethe lattice. © 1989 Plenum Publishing Corporation. (EN)
Type
journalArticle (EN)
Subject
Ising (EN)
binary alloy (EN)
Bethe (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Journal of Statistical Physics (EN)
Issued
1989 (EN)
Identifier
http://hdl.handle.net/123456789/10001
200 (EN)
1-2 (EN)
00224715 (EN)
191 (EN)
10.1007/BF01023478 (EN)
54 (EN)
Publisher
Kluwer Academic Publishers-Plenum Publishers (EN)
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