Quantum Phase Transitions of Frustrated Heisenberg Antiferromagnets: a Comprehensive Renormalization Approach

Simple item page
dc.creatorKrüger, Frank
dc.creatorScheidl, Stefan
dc.date2005-03-03
dc.date2005-03-07
dc.date.accessioned2026-07-07T03:04:00Z
dc.date.available2026-07-07T03:04:00Z
dc.descriptionWe develop a novel renormalization approach for frustrated quantum antiferromagnets. It is designed to consistently treat spin-wave interactions all over the magnetic Brillouin zone, including high-energy modes in outer regions as well as low energy modes in the center. Focusing on the paradigmatic $J_1$-$J_2$ model, we find a unifying description of the second-order transition between the Néel phase and the paramagnetic phase and the first-order transition between the Néel phase and the columnar phase. Our approach provides explicit results for the renormalized values of the spin stiffness and spin-wave velocity characterizing the low-energy magnons in the Néel phase.
dc.description4 pages, 3 figures, errors in references removed
dc.identifierhttps://arxiv.org/abs/cond-mat/0503076
dc.identifierhttp://arxiv.org/abs/cond-mat/0503076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25967
dc.subjectOther Condensed Matter
dc.titleQuantum Phase Transitions of Frustrated Heisenberg Antiferromagnets: a Comprehensive Renormalization Approach
dc.typetext

Files

Collections

arXiv