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dc.creatorLima, Anderson A.-
dc.creatorFilgueiras, Cleverson-
dc.creatorMoraes, Fernando-
dc.date.accessioned2018-07-13T10:49:56Z-
dc.date.available2018-07-13T10:49:56Z-
dc.date.issued2017-02-
dc.identifier.citationLIMA, A. A.; FILGUEIRAS, C.; MORAES, F. Torsion effects on condensed matter: like a magnetic field but not so much. The European Physical Journal B, Les Ulis, v. 90, n. 2, p. 1-8, Feb. 2017.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1140/epjb/e2017-70468-2pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/29617-
dc.description.abstractIn this work, we study the effects of torsion due to a uniform distribution of topological defects (screw dislocations) on free spin/carrier dynamics in elastic solids. When a particle moves in such a medium, the effect of the torsion associated to the defect distribution is analogous to that of an applied magnetic field but with subtle differences. Analogue Landau levels are present in this system but they cannot be confined to two dimensions. In the case of spinless carriers, zero modes, which do not appear in the magnetic Landau levels, show up for quantized values of the linear momentum projected on the defects axis. Particles with spin are subjected to a Zeeman-like coupling between spin and torsion, which is insensitive to charge. This suggests the possibility of spin resonance experiments without a magnetic field for charged carriers or quasiparticles without electrical charge, like triplet excitons, for instance.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceThe European Physical Journal Bpt_BR
dc.subjectCondensed matter - Torsionpt_BR
dc.subjectScrew dislocationspt_BR
dc.subjectMatéria Condensada - Torçãopt_BR
dc.titleTorsion effects on condensed matter: like a magnetic field but not so muchpt_BR
dc.typeArtigopt_BR
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