Theory of helimagnons in itinerant quantum systems

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dc.creatorBelitz, D.
dc.creatorKirkpatrick, T. R.
dc.creatorRosch, A.
dc.date2005-10-17
dc.date2006-04-19
dc.date.accessioned2026-07-07T06:44:28Z
dc.date.available2026-07-07T06:44:28Z
dc.descriptionThe nature and effects of the Goldstone mode in the ordered phase of helical or chiral itinerant magnets such as MnSi are investigated theoretically. It is shown that the Goldstone mode, or helimagnon, is a propagating mode with a highly anisotropic dispersion relation, in analogy to the Goldstone mode in chiral liquid crystals. Starting from a microscopic theory, a comprehensive effective theory is developed that allows for an explicit description of the helically ordered phase, including the helimagnons, for both classical and quantum helimagnets. The directly observable dynamical spin susceptibility, which reflects the properties of the helimagnon, is calculated.
dc.description20 pp., 1 eps fig; corrects various typos and incorrect prefactors in Phys Rev B version
dc.identifierhttps://arxiv.org/abs/cond-mat/0510444
dc.identifierhttp://arxiv.org/abs/cond-mat/0510444
dc.identifierPhys. Rev. B 73, 054431 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.054431
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102788
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleTheory of helimagnons in itinerant quantum systems
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