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Noncollinear Magnetic Structure and Multipolar Order in Eu₂Ir₂O₇

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Show simple item record Wang, Yilin Weng, Hongming Dai, Xi Fu, Liang 2017-12-29T20:41:10Z 2017-12-29T20:41:10Z 2017-11 2017-05
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.description.abstract The magnetic properties of the pyrochlore iridate material Eu₂Ir₂O₇ (5d⁵) have been studied based on first principles calculations, where the crystal field splitting Δ, spin-orbit coupling (SOC) λ, and Coulomb interaction U within Ir 5d orbitals all play significant roles. The ground state phase diagram has been obtained with respect to the strength of SOC and Coulomb interaction U, where a stable antiferromagnetic ground state with all-in–all-out (AIAO) spin structure has been found. In addition, another antiferromagnetic state with energy close to AIAO has also been found to be stable. The calculated nonlinear magnetization of the two stable states both have the d-wave pattern but with a π/4 phase difference, which can perfectly explain the experimentally observed nonlinear magnetization pattern. Compared with the results of the nondistorted structure, it turns out that the trigonal lattice distortion is crucial for stabilizing the AIAO state in Eu₂Ir₂O₇. Furthermore, besides large dipolar moments, we also find considerable octupolar moments in the magnetic states. en_US
dc.description.sponsorship United States. Department of Energy. Office of Basic Energy Sciences (Award DE-SC0010526) en_US
dc.publisher American Physical Society en_US
dc.relation.isversionof en_US
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. en_US
dc.source American Physical Society en_US
dc.title Noncollinear Magnetic Structure and Multipolar Order in Eu₂Ir₂O₇ en_US
dc.type Article en_US
dc.identifier.citation Wang, Yilin et al. "Noncollinear Magnetic Structure and Multipolar Order in Eu₂Ir₂O₇." Physical Review Letters 119, 18 (November 2017): 187203 © 2017 American Physical Society en_US
dc.contributor.department Massachusetts Institute of Technology. Department of Physics en_US
dc.contributor.mitauthor Fu, Liang
dc.relation.journal Physical Review Letters en_US
dc.identifier.mitlicense PUBLISHER_POLICY en_US
dc.eprint.version Final published version en_US
dc.type.uri en_US
eprint.status en_US 2017-11-14T22:43:34Z
dc.language.rfc3066 en
dc.rights.holder American Physical Society
dspace.orderedauthors Wang, Yilin; Weng, Hongming; Fu, Liang; Dai, Xi en_US
dspace.embargo.terms N en_US

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