Freezing and large time scales induced by geometrical frustration

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dc.creatorFerrero, Michel
dc.creatorBecca, Federico
dc.creatorMila, Frédéric
dc.date2003-06-30
dc.date.accessioned2026-07-07T12:09:51Z
dc.date.available2026-07-07T12:09:51Z
dc.descriptionWe investigate the properties of an effective Hamiltonian with competing interactions involving spin and chirality variables, relevant for the description of the {\it trimerized} version of the spin-1/2 {\it kagome} antiferromagnet. Using classical Monte Carlo simulations, we show that remarkable behaviors develop at very low temperatures. Through an {\it order by disorder} mechanism, the low-energy states are characterized by a dynamical freezing of the chiralities, which decouples the lattice into ``dimers'' and ``triangles'' of antiferromagnetically coupled spins. Under the presence of an external magnetic field, the particular topology of the chiralities induces a very slow spin dynamics, reminiscent of what happens in ordinary spin glasses.
dc.description12 pages, 13 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0306744
dc.identifierhttp://arxiv.org/abs/cond-mat/0306744
dc.identifierPhys. Rev. B 68, 214431 (2003)
dc.identifierdoi:10.1103/PhysRevB.68.214431
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209767
dc.subjectStrongly Correlated Electrons
dc.titleFreezing and large time scales induced by geometrical frustration
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