Quantum Monte Carlo Simulations on S=1/2 antiferromagnetic-Ferromagnetic Random Alternating spin chain

Zhang, Peng; Xu, Zhaoxin; Ying, Heping; Dai, Jianhui

arXiv 2005-02-23 1 مشاهدة

Quantum Monte Carlo Simulations on S=1/2 antiferromagnetic-Ferromagnetic Random Alternating spin chain

Zhang, Peng · Xu, Zhaoxin · Ying, Heping · Dai, Jianhui

Disordered Systems and Neural Networks Materials Science

الأصل · EN

The S=1/2 Heisenberg chain with bond alternation and randomness of antiferromagnetic (AFM) and ferromagnetic (FM) interactions is investigated by quantum Monte Carlo simulations of loop/cluster algorithm. Our results have shown interesting finite temperature magnetic properties of this model. The relevance of our study to the observed results of the material (CH₃)₂CHNH₃Cu(ClₓBr₁₋ₓ)₃ is discussed.

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