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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents



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ID: 273542.0, MPI für Festkörperforschung / FKF Publikationen 2006
Spin-orbital entanglement and violation of the Goodenough-Kanamori rules
Authors:Oleś, A. M.; Horsch, P.; Feiner, L. F.; Khaliullin, G.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physical Review Letters
Volume:96
Issue / Number:14
Sequence Number of Article:147205
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We point out that large composite spin-orbital fluctuations in Mott
insulators with t(2g) orbital degeneracy are a manifestation of quantum
entanglement of spin and orbital variables. This results in a dynamical
nature of the spin superexchange interactions, which fluctuate over
positive and negative values, and leads to an apparent violation of the
Goodenough-Kanamori rules.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
; Jagiellonian Univ, Marian Smoluchowski Inst Phys, PL-30059 Krakow, Poland.
; Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands.
; Philips Res Labs, NL-5656 AE Eindhoven, Netherlands.
Identifiers:ISI:000236797200067 [ID No:1]
ISSN:0031-9007 [ID No:2]
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