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Article: Ferromagnetism in Itinerant Two-Dimensional t2g Systems
Title | Ferromagnetism in Itinerant Two-Dimensional t2g Systems |
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Authors | |
Issue Date | 2013 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prl/ |
Citation | Physical Review Letters, 2013, v. 110 n. 20, article no. 206401 How to Cite? |
Abstract | Motivated by the recent indications of ferromagnetism in transition metal oxide heterostructures, we propose a possible mechanism to generate ferromagnetism for itinerant t2g systems in two spatial dimensions that does not rely on the coupling between local moments and conduction electrons. We particularly emphasize the orbital nature of different bands and show that when the Fermi level lies near the bottom of the upper bands, a nonperturbative interaction effect due to the quasi-one-dimensional nature of the upper bands may drive a transition to a state in which the upper bands are ferromagnetically polarized. In the quasi-one-dimensional limit, the full thermodynamics may be obtained exactly. We discuss the connection between our mechanism with several itinerant t2g systems that may have ferromagnetic instabilities. © 2013 American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/266123 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, Gang | - |
dc.contributor.author | Balents, Leon | - |
dc.date.accessioned | 2018-12-27T01:58:54Z | - |
dc.date.available | 2018-12-27T01:58:54Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Physical Review Letters, 2013, v. 110 n. 20, article no. 206401 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/266123 | - |
dc.description.abstract | Motivated by the recent indications of ferromagnetism in transition metal oxide heterostructures, we propose a possible mechanism to generate ferromagnetism for itinerant t2g systems in two spatial dimensions that does not rely on the coupling between local moments and conduction electrons. We particularly emphasize the orbital nature of different bands and show that when the Fermi level lies near the bottom of the upper bands, a nonperturbative interaction effect due to the quasi-one-dimensional nature of the upper bands may drive a transition to a state in which the upper bands are ferromagnetically polarized. In the quasi-one-dimensional limit, the full thermodynamics may be obtained exactly. We discuss the connection between our mechanism with several itinerant t2g systems that may have ferromagnetic instabilities. © 2013 American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prl/ | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.rights | Copyright 2013 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.110.206401 | - |
dc.title | Ferromagnetism in Itinerant Two-Dimensional t2g Systems | - |
dc.type | Article | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1103/PhysRevLett.110.206401 | - |
dc.identifier.scopus | eid_2-s2.0-84877794019 | - |
dc.identifier.volume | 110 | - |
dc.identifier.issue | 20 | - |
dc.identifier.spage | article no. 206401 | - |
dc.identifier.epage | article no. 206401 | - |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.isi | WOS:000319062300017 | - |
dc.identifier.issnl | 0031-9007 | - |