Correlation functions and excitation spectrum of the frustrated ferromagnetic spin-1/2 chain in an external magnetic field

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dc.creatorVekua, T.
dc.creatorHonecker, A.
dc.creatorMikeska, H. -J.
dc.creatorHeidrich-Meisner, F.
dc.date2007-04-05
dc.date2007-11-26
dc.date.accessioned2026-07-07T08:44:25Z
dc.date.available2026-07-07T08:44:25Z
dc.descriptionMagnetic field effects on the one-dimensional frustrated ferromagnetic chain are studied by means of effective field theory approaches in combination with numerical calculations utilizing Lanczos diagonalization and the density matrix renormalization group method. The nature of the ground state is shown to change from a spin-density-wave region to a nematic-like one upon approaching the saturation magnetization. The excitation spectrum is analyzed and the behavior of the single spin-flip excitation gap is studied in detail, including the emergent finite-size corrections.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/0704.0764
dc.identifierhttp://arxiv.org/abs/0704.0764
dc.identifierPhys. Rev. B 76, 174420 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.174420
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/142648
dc.subjectStrongly Correlated Electrons
dc.titleCorrelation functions and excitation spectrum of the frustrated ferromagnetic spin-1/2 chain in an external magnetic field
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