Journal
PHYSICAL REVIEW B
Volume 79, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.184430
Keywords
antiferromagnetism; ground states; lead compounds; magnetic transitions; multiferroics; neutron diffraction; relaxor ferroelectrics; spin glasses
Funding
- Swiss National Foundation [20002-111545]
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We have investigated the magnetic ground state of the multiferroic relaxor ferroelectric Pb(Fe1/2Nb1/2)O-3 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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