Unusual criticality of Cu2Te2O5Br2 under pressure

J. Kreitlow; S. Suellow; D. Menzel; J. Schoenes; P. Lemmens; M. Johnsson

doi:10.1016/j.jmmm.2004.11.300

Unusual criticality of Cu2Te2O5Br2 under pressure

Other Condensed Matter 2009-11-11 v1

Authors: J. Kreitlow , S. Suellow , D. Menzel , J. Schoenes , P. Lemmens , M. Johnsson

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Abstract

We present measurements of the magnetic susceptibility chi(T) on Cu2Te2O5Br2 under externally applied pressure. From our data we extract the pressure response of the antiferromagnetic phase transition at T0 = 11.6 K and of the overall magnetic coupling strength. Our experiments indicate that with pressure the overall magnetic coupling strength increases by about 25% with applied pressure of only 8 kbar. In contrast, the phase transition temperature T0 is significantly suppressed and not observable anymore at a pressure of already 8.2 kbar.

Keywords

criticality magnetic susceptibility antiferromagnetic phase transition pressure effect Cu2Te2O5Br2

Cite

@article{arxiv.cond-mat/0501524,
  title  = {Unusual criticality of Cu2Te2O5Br2 under pressure},
  author = {J. Kreitlow and S. Suellow and D. Menzel and J. Schoenes and P. Lemmens and M. Johnsson},
  journal= {arXiv preprint arXiv:cond-mat/0501524},
  year   = {2009}
}