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Anomalous dynamical line shapes in a quantum magnet at finite temperature

Abstract:

The effect of thermal fluctuations on the dynamics of a gapped quantum magnet is studied using inelastic neutron scattering on copper nitrate, a model material for the spin-1/2, one-dimensional (1D) bond alternating Heisenberg chain. A large, highly deuterated, single-crystal sample of copper nitrate is produced using a solution growth method and measurements are made using the high-resolution backscattering spectrometer OSIRIS at the ISIS Facility. Theoretical calculations and numerical anal...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.85.014402

Authors


Tennant, DA More by this author
James, AJA More by this author
Essler, FHL More by this author
Notbohm, S More by this author
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Journal:
PHYSICAL REVIEW B
Volume:
85
Issue:
1
Publication date:
2012-01-04
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:70682ad4-1e03-40db-ba7c-7d1f2bc3e18c
Source identifiers:
246106
Local pid:
pubs:246106
Language:
English

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