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

Peng Zhang; Zhaoxin Xu; Heping Ying; Jianhui Dai

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

Disordered Systems and Neural Networks 2007-05-23 v1 Materials Science

Authors: Peng Zhang , Zhaoxin Xu , Heping Ying , Jianhui Dai

Abstract

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 (CH $_3$ ) $_2$ CHNH $_3$ Cu(Cl $_x$ Br $_{1-x}$ ) $_3$ is discussed.

Keywords

quantum Monte Carlo Heisenberg chain bond alternation randomness antiferromagnetic ferromagnetic finite temperature

Cite

@article{arxiv.cond-mat/0502543,
  title  = {Quantum Monte Carlo Simulations on S=1/2 antiferromagnetic-Ferromagnetic Random Alternating spin chain},
  author = {Peng Zhang and Zhaoxin Xu and Heping Ying and Jianhui Dai},
  journal= {arXiv preprint arXiv:cond-mat/0502543},
  year   = {2007}
}

Comments

5 pages, 9 figures, paper submit to conference ""Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, P.R. China, Nov. 2004

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

Abstract

Keywords

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