Show simple item record

dc.contributor.author Hu, Wen-Jun en
dc.contributor.author Gong, Shou-Shu en
dc.contributor.author Becca, Federico en
dc.contributor.author Sheng, D. N. en
dc.date.accessioned 2018-07-23T22:47:45Z
dc.date.available 2018-07-23T22:47:45Z
dc.date.issued 2015 en
dc.identifier.citation Physical Review B 92(20), 201105R. (2015) en
dc.identifier.issn 1098-0121 en
dc.identifier.uri http://hdl.handle.net/10211.3/205249 en
dc.description.abstract By using the variational Monte Carlo technique, we study the spin-12 XXZ antiferromagnetic model (with easy-plane anisotropy) on the kagome lattice. A class of Gutzwiller projected fermionic states with a spin Jastrow factor is considered to describe either spin liquids [with U(1) or Z2 symmetry] or magnetically ordered phases [with q=(0,0) or q=(4π/3,0)]. We find that the magnetic states are not stable in the thermodynamic limit. Moreover, there is no energy gain to break the gauge symmetry from U(1) to Z2 within the spin-liquid states, as previously found in the Heisenberg model. The best variational wave function is therefore the U(1) Dirac state, supplemented by the spin Jastrow factor. Furthermore, a vanishing S=2 spin gap is obtained at the variational level, in the whole regime from the XY to the Heisenberg model. en
dc.format.extent 5 pages en
dc.language.iso en en
dc.publisher American Physical Society en
dc.relation.uri doi.org/10.1103/PhysRevB.92.201105 en
dc.rights copyright 2015 American Physical Society en
dc.subject Condensed Matter - Strongly Correlated Electrons en
dc.title Variational Monte Carlo Study Of A Gapless Spin Liquid In The Spin- 1/2 XXZ Antiferromagnetic Model On The Kagome Lattice en
dc.type Article en


Files in this item

Icon

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account

RSS Feeds