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- Publisher Website: 10.1103/PhysRevB.86.235129
- Scopus: eid_2-s2.0-84871598325
- WOS: WOS:000312495500002
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Article: Magnetic orders and topological phases from f-d exchange in pyrochlore iridates
Title | Magnetic orders and topological phases from f-d exchange in pyrochlore iridates |
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Authors | |
Issue Date | 2012 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ |
Citation | Physical Review B (Condensed Matter and Materials Physics), 2012, v. 86 n. 23, article no. 235129 How to Cite? |
Abstract | We study theoretically the effects of f-d magnetic exchange interaction in the R2Ir2O7 pyrochlore iridates. The R3 + f electrons form localized Kramers or non-Kramers doublets, while the Ir4+d electrons are more itinerant and feel a strong spin-orbit coupling. We construct and analyze a minimal model capturing this physics, treating the Ir subsystem using a Hubbard-type model. First neglecting the Hubbard interaction, we find Weyl semimetal and Axion insulator phases induced by the f-d exchange. Next, we find that f-d exchange can cooperate with the Hubbard interaction to stabilize the Weyl semimetal over a larger region of parameter space than when it is induced by d-electron correlations alone. Applications to experiments are discussed. © 2012 American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/266121 |
ISSN | 2014 Impact Factor: 3.736 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, Gang | - |
dc.contributor.author | Hermele, Michael | - |
dc.date.accessioned | 2018-12-27T01:58:54Z | - |
dc.date.available | 2018-12-27T01:58:54Z | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | Physical Review B (Condensed Matter and Materials Physics), 2012, v. 86 n. 23, article no. 235129 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/10722/266121 | - |
dc.description.abstract | We study theoretically the effects of f-d magnetic exchange interaction in the R2Ir2O7 pyrochlore iridates. The R3 + f electrons form localized Kramers or non-Kramers doublets, while the Ir4+d electrons are more itinerant and feel a strong spin-orbit coupling. We construct and analyze a minimal model capturing this physics, treating the Ir subsystem using a Hubbard-type model. First neglecting the Hubbard interaction, we find Weyl semimetal and Axion insulator phases induced by the f-d exchange. Next, we find that f-d exchange can cooperate with the Hubbard interaction to stabilize the Weyl semimetal over a larger region of parameter space than when it is induced by d-electron correlations alone. Applications to experiments are discussed. © 2012 American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
dc.relation.ispartof | Physical Review B (Condensed Matter and Materials Physics) | - |
dc.title | Magnetic orders and topological phases from f-d exchange in pyrochlore iridates | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevB.86.235129 | - |
dc.identifier.scopus | eid_2-s2.0-84871598325 | - |
dc.identifier.volume | 86 | - |
dc.identifier.issue | 23 | - |
dc.identifier.spage | article no. 235129 | - |
dc.identifier.epage | article no. 235129 | - |
dc.identifier.eissn | 1550-235X | - |
dc.identifier.isi | WOS:000312495500002 | - |
dc.identifier.issnl | 1098-0121 | - |