Transport and thermal properties of single- and polycrystalline NiZr0.5Hf0.5Sn

Ouardi, Siham; Fecher, Gerhard H.; Felser, Claudia; Blum, Christian G. F.; Bombor, Dirk; Hess, Christian; Wurmehl, Sabine; Büchner, Bernd; Ikenaga, Eiji

doi:10.1063/1.3651484

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Transport and thermal properties of single- and polycrystalline NiZr_0.5Hf_0.5Sn

Ouardi, S., Fecher, G. H., Felser, C., Blum, C. G. F., Bombor, D., Hess, C., et al. (2011). Transport and thermal properties of single- and polycrystalline NiZr_0.5Hf_0.5Sn. Applied Physics Letters, 99(15): 152112, pp. 1-3. doi:10.1063/1.3651484.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0018-B559-E Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0018-B55E-4

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Creators:
Ouardi, Siham¹, Author
Fecher, Gerhard H.¹, Author
Felser, Claudia², Author
Blum, Christian G. F.¹, Author
Bombor, Dirk¹, Author
Hess, Christian¹, Author
Wurmehl, Sabine¹, Author
Büchner, Bernd¹, Author
Ikenaga, Eiji¹, Author

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1external, ou_persistent22
2External Organizations, ou_persistent22

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Abstract: The thermoelectric properties of a Heusler compound with NiZr0.5Hf0.5Sn composition were studied. A comparison of the properties of a single crystal and a polycrystal was carried out by measurements of the electrical conductivity. Seebeck coefficient, and thermal conductivity. The transport properties are directly compared to the valence band electronic structure measured by photoelectron spectroscopy. The single crystal shows a higher figure of merit (ZT-0.1) at room temperature which originates from the high electrical conductivity that is mediated by "in-gap" states observed by photoemission spectroscopy. (C) 2011 American Institute of Physics. [doi:10.1063/1.3651484]

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Dates: Date issued: 2011-10-10

Publication Status: Issued

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Identifiers: ISI: 000295883800048
DOI: 10.1063/1.3651484

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Title: Applied Physics Letters

Source Genre: Journal

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Publ. Info: Melville, NY : American Institute of Physics

Pages: - Volume / Issue: 99 (15) Sequence Number: 152112 Start / End Page: 1 - 3 Identifier: Other: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223