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



  history
ID: 273433.0, MPI für Festkörperforschung / FKF Publikationen 2006
Microscopic theory of magnetic interactions in KCuF3 and LaMnO3 – The role of charge transfer
Authors:Oleś, A. M.; Feiner, L. F.; Horsch, P.; Khaliullin, G.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:physica status solidi (b)
Volume:243
Issue / Number:1
Start Page:89
End Page:93
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We analyze the spin exchange interactions J(ab) and J(c) in the A-type
anti ferromagnetic phase of KCuF3 and LaMnO3. One finds that the quasi
one-dimensional spin interactions in KCuF3 are consistent with the
charge-transfer type of insulating state, while the modifications of
J(ab) and J(c) by the charge-transfer superexchange terms are moderate
in the Mott insulator LaMnO3. We point out on the example of LaMnO3
that a reliable determination of the experimental microscopic
parameters of spin-orbital models is possible only when results of
magnetic and optical experiments can be combined. (c) 2006 WILEY-VCH
Verlag GmbH & Co. KGaA, Weinheim.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
; Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands.
; Philips Res Labs, NL-5656 AA Eindhoven, Netherlands.
; Russian Acad Sci, EK Zavoisky Phys Tech Inst, Kazan 420029, Russia.
Identifiers:ISI:000234925800013 [ID No:1]
ISSN:0370-1972 [ID No:2]
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