BaCu_2Si_2O_7: a new quasi 1-dimensional S = 1/2 antiferromagnetic chain system

I. Tsukada; Y. Sasago; K. Uchinokura; A. Zheludev; S. Maslov; G. Shirane; K. Kakurai; E. Ressouche

BaCu_2Si_2O_7: a new quasi 1-dimensional S = 1/2 antiferromagnetic chain system

Strongly Correlated Electrons 2007-05-23 v1

Authors: I. Tsukada , Y. Sasago , K. Uchinokura , A. Zheludev , S. Maslov , G. Shirane , K. Kakurai , E. Ressouche

Abstract

The new antiferromagnetic (AF) compound BaCu_2Si_2O_7 is studied by magnetic susceptibility and neutron scattering techniques. The observed behavior is dominated by the presence of loosely coupled S=1/2 chains with the intrachain AF exchange constant J = 24.1 meV. Long-range Neel ordering is observed below Tn = 9.2 K. The results are discussed within the framework of the Mean Field-RPA model for weakly interacting quantum spin chains.

Keywords

antiferromagnetic compound spin chains magnetic susceptibility neutron scattering quantum spin

Cite

@article{arxiv.cond-mat/9902251,
  title  = {BaCu_2Si_2O_7: a new quasi 1-dimensional S = 1/2 antiferromagnetic chain system},
  author = {I. Tsukada and Y. Sasago and K. Uchinokura and A. Zheludev and S. Maslov and G. Shirane and K. Kakurai and E. Ressouche},
  journal= {arXiv preprint arXiv:cond-mat/9902251},
  year   = {2007}
}

Comments

7 pages, 7 figures

Related papers

View all related →