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Field induced transitions in a kagome antiferromagnet

M. E. Zhitomirsky
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Abstract

The thermal order by disorder effect in magnetic field is studied for a classical Heisenberg antiferromagnet on the kagome lattice. Using analytical arguments we predict a unique H-T phase diagram for this strongly frustrated magnet: states with a coplanar and a uniaxial triatic order parameters respectively at low and high magnetic fields and an incompressible collinear spin-liquid state at a one-third of the saturation field. We also present the Monte Carlo data which confirm existence of these phases.

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M. E. Zhitomirsky. 2002-01-18. Field induced transitions in a kagome antiferromagnet. https://doi.org/10.1103/physrevlett.88.057204

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