Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3

G. -M. Rotaru; B. Roessli; A. Amato; S. N. Gvasaliya; C. Mudry; S. G. Lushnikov; T. A. Shaplygina

doi:10.1103/PhysRevB.79.184430

Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3

Materials Science 2009-09-13 v2

Authors: G. -M. Rotaru , B. Roessli , A. Amato , S. N. Gvasaliya , C. Mudry , S. G. Lushnikov , T. A. Shaplygina

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Abstract

We have investigated the magnetic ground-state of the multiferroic relaxor ferroelectric \pfn with $\mu$ SR spectroscopy and neutron scattering. We find that a transition to a partially disordered phase occurs below T=20 K that coexists with long-range antiferromagnetic ordering. The disordered phase resembles a spin-glass. No clustering of magnetic ions could be evidenced by $\mu$ SR so that the coexistence appears homogeneous in the sample.

Keywords

spin glass long-range magnetic order multiferroic relaxor ferroelectric muon spin rotation neutron scattering

Cite

@article{arxiv.0901.1816,
  title  = {Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3},
  author = {G. -M. Rotaru and B. Roessli and A. Amato and S. N. Gvasaliya and C. Mudry and S. G. Lushnikov and T. A. Shaplygina},
  journal= {arXiv preprint arXiv:0901.1816},
  year   = {2009}
}

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