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High-energy Cu spin excitations in PrBa2Cu3O6+x

Abstract:

This paper describes high-energy neutron inelastic scattering measurements of propagating magnetic excitations in PrBa2Cu3O6+x (x approx 0.2 and 0.93). The measurements probe the acoustic and optic modes of the antiferromagnetically-ordered copper--oxygen bilayers in the energy range 50-150 meV. The observed magnon dispersion can be described satisfactorily in this energy range by a spin wave model including intra- and inter-layer nearest-neighbour exchange constants J_parallel and J_perp. We...

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Publication status:
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Publisher copy:
10.1103/PhysRevB.71.094514

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Andersen, NH More by this author
Larsen, BH More by this author
Zhokhov, AA More by this author
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Journal:
Phys. Rev. B
Volume:
71
Issue:
9
Pages:
094514
Publication date:
2005-02-18
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:0ed5af66-c833-444a-9793-f1b3a8a8a389
Source identifiers:
9696
Local pid:
pubs:9696

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