Towards low-temperature peculiarities of thermodynamic quantities for decorated spin chains

Taras Krokhmalskii, Taras Hutak, Onofre Rojas, Sergio Martins de Souza and Oleg Derzhko

Physica A: Statistical Mechanics and its Applications, 2021, vol. 573, issue C

Abstract: We discuss the origin of an enigmatic low-temperature behavior of some one-dimensional decorated spin systems which was coined the pseudo-transition. Tracing out the decorated parts results in the standard Ising-chain model with temperature-dependent parameters and the unexpected low-temperature behavior of thermodynamic quantities and correlations of the decorated spin chains can be tracked down in the critical point of the standard Ising-chain model at H=0 and T=0. We illustrate this perspective using as examples the spin-1/2 Ising-XYZ diamond chain, the coupled spin-electron double-tetrahedral chain, and the spin-1/2 Ising–Heisenberg double-tetrahedral chain.

Keywords: Decorated spin chains; Ising chain; Thermodynamics; Correlations (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:573:y:2021:i:c:s0378437121002582

DOI: 10.1016/j.physa.2021.125986

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