Mostrar el registro sencillo del ítem
dc.contributor.author
Gómez Albarracín, Flavia Alejandra
dc.contributor.author
Arlego, Marcelo José Fabián
dc.contributor.author
Rosales, Héctor Diego
dc.date.available
2020-04-03T15:15:44Z
dc.date.issued
2014-11
dc.identifier.citation
Gómez Albarracín, Flavia Alejandra; Arlego, Marcelo José Fabián; Rosales, Héctor Diego; Magnetization plateaus and jumps in a frustrated four-leg spin tube under a magnetic field; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11-2014; 174403-174411
dc.identifier.issn
1098-0121
dc.identifier.uri
http://hdl.handle.net/11336/101807
dc.description.abstract
We study the ground state phase diagram of a frustrated spin-1/2 four-leg spin tube in an external magnetic field. We explore the parameter space of this model in the regime of all-antiferromagnetic exchange couplings by means of three different approaches: analysis of low-energy effective Hamiltonian, a Hartree variational approach, and density matrix renormalization group for finite clusters. We find that in the limit of weakly interacting plaquettes, low-energy singlet, triplet, and quintuplet states play an important role in the formation of fractional magnetization plateaus. We study the transition regions numerically and analytically, and find that they are described, at first order in a strong-coupling expansion, by an XXZ spin-1/2 chain in a magnetic field; the second-order terms give corrections to the XXZ model. All techniques provide consistent results which allow us to predict the existence of fractional plateaus in an important region in the space of parameters of the model.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Magnetization
dc.subject
plateaus
dc.subject
jumps
dc.subject
frustrated
dc.subject
four-leg
dc.subject
spin
dc.subject
tube
dc.subject
magnetic
dc.subject
field
dc.subject.classification
Física de los Materiales Condensados
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Magnetization plateaus and jumps in a frustrated four-leg spin tube under a magnetic field
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-04-02T15:00:48Z
dc.journal.volume
90
dc.journal.pagination
174403-174411
dc.journal.pais
Estados Unidos
dc.journal.ciudad
New York
dc.description.fil
Fil: Gómez Albarracín, Flavia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Arlego, Marcelo José Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Rosales, Héctor Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.journal.title
Physical Review B: Condensed Matter and Materials Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.174403
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.90.174403
Archivos asociados