Physica A: Statistical Mechanics and its Applications ( IF 3.3 ) Pub Date : 2021-03-29 , DOI: 10.1016/j.physa.2021.125986 Taras Krokhmalskii , Taras Hutak , Onofre Rojas , Sergio Martins de Souza , Oleg Derzhko
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 and . 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.
中文翻译:
着眼于装饰性旋转链的热力学量的低温特性
我们讨论了由一维伪转变创造的一些一维装饰自旋系统的神秘低温行为的起源。追踪装饰零件会导致标准的Ising链模型具有与温度相关的参数,并且在标准Ising链模型的关键点可以追踪到热力学量的意外低温行为以及装饰的自旋链的相关性在 和 。我们以自旋1/2 Ising-XYZ钻石链,耦合的自旋电子双四面体链和自旋1/2 Ising-Heisenberg双四面体链为例来说明这种观点。