On the energy spectrum and thermodynamics of decorated quasi-one-dimensional magnetic systems with uniaxial anisotropy

This paper is devoted to the study of thermodynamics of the quasi-1D spin models with Ising interaction between complex unit cells by transfer-matrix method. The field and the temperature dependences of the main thermodynamic characteristics have been investigated. It is shown that the field depende...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2021-06, Vol.47 (6), p.473-477
1. Verfasser: Ezerskaya, E. V.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:This paper is devoted to the study of thermodynamics of the quasi-1D spin models with Ising interaction between complex unit cells by transfer-matrix method. The field and the temperature dependences of the main thermodynamic characteristics have been investigated. It is shown that the field dependence of the magnetization at low temperatures for the models of “comb” and “decorated comb,” and decorated triangles structures have an intermediate magnetization plateau in case of antiferromagnetic Ising interactions. The temperature dependence of the heat capacity may have several maxima in zero magnetic field. For the chain model of triangles decorated by Ising spins through the one vertex and for the “double decorated comb” some kind of the pseudo-phase transitions in the critical magnetic field is found.
ISSN:1063-777X
1090-6517
DOI:10.1063/10.0004969