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



  history
ID: 273556.0, MPI für Festkörperforschung / FKF Publikationen 2006
Crystal structure and high-field magnetism of La2CuO4
Authors:Reehuis, M.; Ulrich, C.; Prokeš, K.; Gozar, A.; Blumberg, G.; Komiya, S.; Ando, Y.; Pattison, P.; Keimer, B.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physical Review B
Volume:73
Issue / Number:14
Sequence Number of Article:144513
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Neutron diffraction was used to determine the crystal structure and
magnetic ordering pattern of a La2CuO4 single crystal, with and without
applied magnetic field. A previously unreported, subtle monoclinic
distortion of the crystal structure away from the orthorhombic space
group Bmab was detected. The distortion is also present in lightly
Sr-doped crystals. A refinement of the crystal structure shows that the
deviation from orthorhombic symmetry is predominantly determined to
drive a continuous reorientation of the copper spins from the
orthorhombic b axis to the c axis, directly confirming predictions
based on prior magnetoresistance and Raman scattering experiments. A
spin-flop transition induced by a c-axis oriented field previously
reported for nonstoichiometric La2CuO4 is also observed, but the
transition field (11.5 T) is significantly larger than that in the
previous work.
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.
; Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany.
; Brookhaven Natl Lab, Upton, NY 11973 USA.
; Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA.
; Cent Res Inst Elect Power Ind, Komae, Tokyo 2018511, Japan.
; ESRF, SNBL, F-38042 Grenoble 9, France.
; Swiss Fed Inst Technol, Crystallog Lab, BSP Dorigny, CH-1015 Lausanne, Switzerland.
Identifiers:ISI:000237154500083 [ID No:1]
ISSN:1098-0121 [ID No:2]
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