Frustration induced disordered magnetism in Ba3RuTi2O9

Tusharkanti Dey; A. V. Mahajan

doi:10.1140/epjb/e2013-40028-1

Frustration induced disordered magnetism in Ba3RuTi2O9

Strongly Correlated Electrons 2013-06-14 v2

Authors: Tusharkanti Dey , A. V. Mahajan

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Abstract

The title compound Ba3RuTi2O9 crystallizes with a hexagonal unit cell. It contains layers of edge shared triangular network of Ru4+ (S=1) ions. Magnetic susceptibility chi(T) and heat capacity data show no long range magnetic ordering down to 1.8K. A Curie-Weiss (CW) fitting of chi(T) yields a large antiferromagnetic CW temperature theta_CW=-166K. However, in low field, a splitting of zero field cooled (ZFC) and field cooled (FC) chi(T) is observed below ~30K. Our measurements suggest that Ba3RuTi2O9 is a highly frustrated system but only a small fraction of the spins in this system undergo a transition to a frozen magnetic state below ~30K.

Keywords

frustrated magnetism Ba3RuTi2O9 triangular lattice spin freezing magnetic susceptibility heat capacity Curie-Weiss law

Cite

@article{arxiv.1209.6436,
  title  = {Frustration induced disordered magnetism in Ba3RuTi2O9},
  author = {Tusharkanti Dey and A. V. Mahajan},
  journal= {arXiv preprint arXiv:1209.6436},
  year   = {2013}
}

Comments

5 pages, 6 figures (accepted in EPJB)

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