<div class="csl-bib-body">
<div class="csl-entry">Laumann, S., Ikeda, M., Sassik, H., Prokofiev, A., & Paschen, S. (2011). Meltspun Ba₈Ga₁₆₋ₓGe₃₀₊ₓ clathrates. <i>Journal of Materials Research</i>, <i>26</i>(15), 1861–1865. https://doi.org/10.1557/jmr.2011.184</div>
</div>
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dc.identifier.issn
0884-2914
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/162949
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dc.description.abstract
Ba8Ga16−xGe30+x is the clathrate with the highest thermoelectric figure of merit known to date. However, no p-type material could be obtained by conventional synthesis from the melt. Here we show that the time and cost-effective melt spinning technique can produce Ba8Ga16−xGe30+x in a metastable state, where x can be varied continuously from negative to positive values, resulting in both p- and n-type materials. The quenched phases were characterized by x-ray powder diffraction and transmission electron microscopy. It was surprising that they were perfectly crystalline, with large grain sizes of the order of a micrometer. Temperature dependent measurements of the electrical resistivity, Hall effect, thermopower, and thermal conductivity are presented and discussed in terms of a two-band model.
en
dc.language.iso
en
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dc.publisher
CAMBRIDGE UNIV PRESS
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dc.relation.ispartof
Journal of Materials Research
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dc.subject
Mechanical Engineering
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dc.subject
Mechanics of Materials
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dc.subject
Condensed Matter Physics
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dc.subject
General Materials Science
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dc.subject
thermoelectric
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dc.subject
clathrates
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dc.subject
rapid solidification
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dc.title
Meltspun Ba₈Ga₁₆₋ₓGe₃₀₊ₓ clathrates
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
1861
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dc.description.endpage
1865
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dc.type.category
Original Research Article
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tuw.container.volume
26
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tuw.container.issue
15
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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tuw.researchTopic.id
E6
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tuw.researchTopic.id
M7
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tuw.researchTopic.name
Sustainable Production and Technologies
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tuw.researchTopic.name
Special and Engineering Materials
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tuw.researchTopic.value
40
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tuw.researchTopic.value
60
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dcterms.isPartOf.title
Journal of Materials Research
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tuw.publication.orgunit
E138-04 - Forschungsbereich Quantum Materials
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tuw.publication.orgunit
E138-03 - Forschungsbereich Functional and Magnetic Materials