Low-temperature thermodynamics of the two-leg ladder Ising model with trimer rungs: A mystery explained

Abstract

Recently, a surprising low-temperature behavior has been revealed in a two-leg ladder Ising model with trimer rungs (Weiguo Yin, arXiv:2006.08921). Motivated by these findings, we study this model from another perspective and demonstrate that the reported observations are related to a critical phenomenon in the standard Ising chain. We also discuss a related curiosity, namely, the emergence of a power-law behavior characterized by quasicritical exponents.

5 pages, 4 figures

References in corpus (4)

• Vigorous thermal excitations in a double-tetrahedral chain of localized Ising spins and mobile electrons mimic a temperature-driven first-order phase transition
• Quasi-phases and pseudo-transitions in one-dimensional models with nearest neighbor interactions
• Thermal entanglement and sharp specific-heat peak in an exactly solved spin-1/2 Ising-Heisenberg ladder with alternating Ising and Heisenberg inter-leg couplings
• Peculiarities in pseudo-transitions of a mixed spin-$(1/2,1)$ Ising-Heisenberg double-tetrahedral chain in an external magnetic field

Cited by in corpus (14)

• A paradigm of spontaneous marginal phase transition at finite temperature in one-dimensional ladder Ising models
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• Paradigm for approaching the forbidden phase transition in the one-dimensional Ising model at fixed finite temperature: Single chain in a magnetic field
• Unusual low-temperature behavior in the half-filled band of the one-dimensional extended Hubbard model in atomic limit
• Pseudo-transition between antiferromagnetic and charge orders in a minimal spin-pseudospin model of one-dimensional cuprates
• Pseudotransitions in a dilute Ising chain
• Ising spin ladder with trimer rungs and next-nearest-neighbor coupling. Frustration in physics and agent models
• Finite size effects around pseudo-transition in one-dimensional models with nearest neighbor interaction
• Bifurcation in correlation length of the Ising model on a "Toblerone" lattice
• Quantum Otto engine mimicking Carnot near pseudotransitions in the one-dimensional extended Hubbard model in the atomic limit
• Effect of compression in molecular spin-crossover chains
• Thermodynamic constraints and pseudotransition behavior in a one-dimensional water-like system
• Spectral mechanism and nearly reducible transfer matrices for pseudotransitions in one-dimensional systems
• The Widom line in the Ising model on a decorated bilayer lattice