ISSN:
1572-9613
Keywords:
Bethe-Peierls and Bragg-Williams maps
;
boundary condition
;
metastability
;
residual entropy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Metastability in the ferromagneticp-state Potts model defined on the Cayley tree is discussed. It is shown that the sign of the boundary fieldH s determines the order of the transition as well as the stability of the low-temperature phase. Lowering the temperature withH s 〉0, a system withp〈2 (p〉2) will display a second (first)-order transition to a metastable (stable) phase. ForH s 〉0 a second (first)-order transition to a metastable (stable) phase occurs ifp〉2 (p〈2). In this case the system also has a residual entropy which is negative forp〈2.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01048311
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