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Magnetic excitations of charge-ordered La2NiO4.11

Abstract:
The incommensurate magnetic excitations of spin-charge ordered La2NiO4.11 were studied by inelastic neutron scattering. With increasing energy up to similar to 20meV the maximum intensity of the spin excitations is observed to shift slightly towards the 2D antiferromagnetic wave vector (1/2, 1/2). This asymmetry in the magnon dispersion about the incommensurate wave vector is a similar effect, though less marked, to what has been observed in the layered cuprate superconductors. (c) 2006 Elsevier B.V. All rights reserved.
Publication status:
Published

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Publisher copy:
10.1016/j.jmmm.2006.10.488

Authors


Freeman, PG More by this author
Hayden, SM More by this author
Prabhakaran, D More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Volume:
310
Issue:
2
Pages:
760-762
Publication date:
2007-03-05
DOI:
ISSN:
0304-8853
URN:
uuid:7c5cf4e1-d254-42ca-8512-45157a93ff86
Source identifiers:
29959
Local pid:
pubs:29959

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