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Article: Elementary excitations for the two-dimensional quantum Heisenberg antiferromagnet

TitleElementary excitations for the two-dimensional quantum Heisenberg antiferromagnet
Authors
Chen, GDing, HQGoddard Iii, WA
Issue Date1992
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter), 1992, v. 46 n. 5, p. 2933-2938 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevB.46.2933
AbstractThe excitation spectrum of the antiferromagnetic spin-1/2 Heisenberg Hamiltonian H=tsumJSj on L×L lattices is evaluated by a projector quantum Monte Carlo method. These results suggest that the exact spectrum for the finite lattice is ωZ(L)ωkSW, for all k, where ωkSW=4JS 1-γk2 with γk=(coskx+cosky)/2 is from linear-spin-wave theory. We find Z(L)=ZE+B/L3, leading to ZE=1.21±0.03 for L=. A comparison with experiments on La2CuO4 is discussed. © 1992 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/167391
ISSN
0163-1829
ISI Accession Number ID
WOS:A1992JG57300036

 

DC FieldValueLanguage
dc.contributor.authorChen, Gen_US
dc.contributor.authorDing, HQen_US
dc.contributor.authorGoddard Iii, WAen_US
dc.date.accessioned2012-10-08T03:06:24Z-
dc.date.available2012-10-08T03:06:24Z-
dc.date.issued1992en_US
dc.identifier.citationPhysical Review B (Condensed Matter), 1992, v. 46 n. 5, p. 2933-2938-
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/10722/167391-
dc.description.abstractThe excitation spectrum of the antiferromagnetic spin-1/2 Heisenberg Hamiltonian H=tsumJSj on L×L lattices is evaluated by a projector quantum Monte Carlo method. These results suggest that the exact spectrum for the finite lattice is ωZ(L)ωkSW, for all k, where ωkSW=4JS 1-γk2 with γk=(coskx+cosky)/2 is from linear-spin-wave theory. We find Z(L)=ZE+B/L3, leading to ZE=1.21±0.03 for L=. A comparison with experiments on La2CuO4 is discussed. © 1992 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review B (Condensed Matter)-
dc.titleElementary excitations for the two-dimensional quantum Heisenberg antiferromagneten_US
dc.typeArticleen_US
dc.identifier.emailChen, G:ghc@yangtze.hku.hken_US
dc.identifier.authorityChen, G=rp00671en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1103/PhysRevB.46.2933en_US
dc.identifier.scopuseid_2-s2.0-0006761280en_US
dc.identifier.volume46en_US
dc.identifier.issue5en_US
dc.identifier.spage2933en_US
dc.identifier.epage2938en_US
dc.identifier.isiWOS:A1992JG57300036-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, G=35253368600en_US
dc.identifier.scopusauthoridDing, HQ=16236160700en_US
dc.identifier.scopusauthoridGoddard III, WA=36042196400en_US
dc.identifier.issnl0163-1829-

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