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Journal article

Suppression of thermal conductivity by rattling modes in thermoelectric sodium cobaltate.

Abstract:

The need for both high electrical conductivity and low thermal conductivity creates a design conflict for thermoelectric systems, leading to the consideration of materials with complicated crystal structures. Rattling of ions in cages results in low thermal conductivity, but understanding the mechanism through studies of the phonon dispersion using momentum-resolved spectroscopy is made difficult by the complexity of the unit cells. We have performed inelastic X-ray and neutron scattering exp...

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Publication status:
Published

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Publisher copy:
10.1038/nmat3739

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Journal:
Nature materials
Volume:
12
Issue:
11
Pages:
1028-1032
Publication date:
2013-11-01
DOI:
EISSN:
1476-4660
ISSN:
1476-1122
Source identifiers:
421054
Language:
English
Pubs id:
pubs:421054
UUID:
uuid:cb759e6d-e4e7-4aa9-8f23-5f1668567fc6
Local pid:
pubs:421054
Deposit date:
2013-11-17

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