DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Sung Bin | ko |
dc.contributor.author | Onoda, Shigeki | ko |
dc.contributor.author | Balents, Leon | ko |
dc.date.accessioned | 2016-05-16T05:30:39Z | - |
dc.date.available | 2016-05-16T05:30:39Z | - |
dc.date.created | 2016-03-03 | - |
dc.date.created | 2016-03-03 | - |
dc.date.created | 2016-03-03 | - |
dc.date.created | 2016-03-03 | - |
dc.date.issued | 2012-09 | - |
dc.identifier.citation | PHYSICAL REVIEW B, v.86, no.10 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207397 | - |
dc.description.abstract | We consider possible exotic ground states of quantum spin ice as realized in rare earth pyrochlores. Prior work [Savary and Balents, Phys. Rev. Lett. 108, 037202 (2012).] introduced a gauge mean-field theory (gMFT) to treat spin or pseudospin Hamiltonians for such systems, reformulated as a problem of bosonic spinons coupled to a U(1) gauge field. We extend gMFT to treat the most general nearest-neighbor exchange Hamiltonian, which contains a further exchange interaction. This term leads to interactions between spinons and requires a significant extension of gMFT, which we provide. As an application, we focus especially on the non-Kramers materials Pr2TM2O7 (TM = Sn, Zr, Hf, and Ir), for which the additional term is especially important, but for which an Ising-planar exchange coupling discussed previously is forbidden by time-reversal symmetry. In this case, when the planar XY exchange is unfrustrated, we perform a full analysis and find three quantum ground states: a U(1) quantum spin liquid (QSL), an antiferroquadrupolar ordered state and a noncoplanar ferroquadrupolar ordered one. We also consider the case of frustrated XY exchange, and find that it favors a pi-flux QSL, with an emergent line degeneracy of low-energy spinon excitations. This feature greatly enhances the stability of the QSL with respect to classical ordering. | - |
dc.language | English | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Generic quantum spin ice | - |
dc.type | Article | - |
dc.identifier.wosid | 000308527900003 | - |
dc.identifier.scopusid | 2-s2.0-84866367529 | - |
dc.type.rims | ART | - |
dc.citation.volume | 86 | - |
dc.citation.issue | 10 | - |
dc.citation.publicationname | PHYSICAL REVIEW B | - |
dc.identifier.doi | 10.1103/PhysRevB.86.104412 | - |
dc.contributor.localauthor | Lee, Sung Bin | - |
dc.contributor.nonIdAuthor | Onoda, Shigeki | - |
dc.contributor.nonIdAuthor | Balents, Leon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | PHYSICS | - |
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