A detailed study of the magnetic phase transition in CuCrO2.
The phase transition in CuCrO2 to an ordered magnetic state is studied with bulk measurements and elastic and inelastic neutron scattering techniques. The reported onset of spontaneous electric polarization at T = 23.5 K coincides with the appearance, on cooling, of elastic magnetic scattering. At higher temperatures long range magnetic correlations gradually develop but they are dynamic. The ground state is characterized by three-dimensional long range magnetic ordering but along the c direction the correlation length remains limited to ∼200 Å.
Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6475, USA.
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G
Ehlers
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Podlesnyak
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Frontzek
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Freitas
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Ghivelder
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Gardner
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Shiryaev
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Barilo