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Spin correlations among the charge carriers in an ordered stripe phase.

Abstract:

We have observed a diffuse component to the low-energy magnetic excitation spectrum of stripe-ordered La(5/3)Sr(1/3)NiO4 probed by neutron inelastic scattering. The diffuse scattering forms a square pattern with sides parallel and perpendicular to the stripe directions. The signal is dispersive, with a maximum energy of approximately 10 meV. Probed at 2 meV, the scattering decreases in strength with increasing temperature, and is barely visible at 100 K. We argue that the signal originates fr...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Freeman, PG More by this author
Prabhakaran, D More by this author
Enderle, M More by this author
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Journal:
Physical review letters
Volume:
91
Issue:
25
Pages:
257201
Publication date:
2003-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:396d7dbd-2d66-4731-a196-b23f8430b3a5
Source identifiers:
26385
Local pid:
pubs:26385
Language:
English
Keywords:

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