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Spin dynamics in stripe-ordered La5/3Sr1/3NiO4

Abstract:

Polarized and unpolarized neutron inelastic scattering has been used to measure the spin excitations in the spin-charge-ordered stripe phase of La5/3Sr1/3NiO4. At high energies, sharp magnetic modes are observed characteristic of a static stripe lattice. The energy spectrum is described well by a linear spin wave model with intra- and inter-stripe exchange interactions between neighbouring Ni spins given by J = 15 +/- 1.5 meV and J' = 7.5 +/- 1.5 meV respectively. A pronounced broadening of t...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.67.100407

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Journal:
Phys. Rev. B
Volume:
67
Issue:
10
Pages:
100407
Publication date:
2002-06-27
DOI:
ISSN:
1098-0121
URN:
uuid:fcd4e6c2-99e4-444a-a611-cf51cfe778b1
Source identifiers:
9386
Local pid:
pubs:9386
Language:
English
Keywords:

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