2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/18086The 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.4 pages, 2 figures, accepted versionStrongly Correlated ElectronsStatistical Mechanicstext