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dc.contributor.author
Rozenberg, Marcelo Javier
dc.contributor.author
Chitra, R.
dc.date.available
2018-10-03T18:07:44Z
dc.date.issued
2008-12
dc.identifier.citation
Rozenberg, Marcelo Javier; Chitra, R.; Disorder effects in the quantum kagome antiferromagnet ZnCu 3(OH)6Cl2; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 78; 13; 12-2008; 132406-132409
dc.identifier.issn
1098-0121
dc.identifier.uri
http://hdl.handle.net/11336/61543
dc.description.abstract
Motivated by the recent NMR experiments on ZnCu3(OH)6Cl2, we study the effect of nonmagnetic defects on the antiferromagnetic spin-1/2 kagome lattice. We use exact diagonalization methods to study the effect of two such defects on finite-size systems. Our results, obtained without adjustable parameters, are in good quantitative agreement with recent 17O NMR data. They provide support for the experimental interpretation of the presence of defects within the kagome layers due to Zn/Cu substitutions. Our results also show that disorder effects become relevant at lower temperatures, raising questions about the experimental evidence for the absence of an intrinsic spin gap in the kagome two-dimensional layers. ©2008 The American Physical Society.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Quantum Magnetism
dc.subject
Frustration
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Disorder effects in the quantum kagome antiferromagnet ZnCu 3(OH)6Cl2
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-03T17:28:37Z
dc.journal.volume
78
dc.journal.number
13
dc.journal.pagination
132406-132409
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Rozenberg, Marcelo Javier. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Chitra, R.. Laboratoire de Physique Theorique de la Matiere Condensee; Francia
dc.journal.title
Physical Review B: Condensed Matter and Materials Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.78.132406


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