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

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

2009-01-13

arxiv.org/abs/0901.1816v2

Phys. Rev. B 79, 184430 (2009)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.79.184430

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.

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