Record link: 
http://hdl.handle.net/20.500.12708/157486
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Title: 
Anisotropic Thermopower of the Kondo Insulator CeRu₄Sn₆
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Citation: 
Hänel, J., Winkler, H., Ikeda, M., Larrea Jiménez, J. A., Martelli, V., Prokofiev, A., Bauer, E., & Paschen, S. (2014). Anisotropic Thermopower of the Kondo Insulator CeRu₄Sn₆. Journal of Electronic Materials, 43(6), 2440–2443. https://doi.org/10.1007/s11664-014-3139-9
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Publisher DOI: 
10.1007/s11664-014-3139-9
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Hänel, Jonathan 
Winkler, Hannes 
Ikeda, Matthias 
Larrea Jiménez, Julio Antonio 
Martelli, Valentina 
Prokofiev, Andrey 
Bauer, Ernst 
Paschen, Silke 
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Organisational Unit: 
E138-04 - Forschungsbereich Quantum Materials 
E138-03 - Forschungsbereich Functional and Magnetic Materials 
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Journal: 
Journal of Electronic Materials 
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ISSN: 
0361-5235
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Date (published): 
2014
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Number of Pages: 
4
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Peer reviewed: 
Yes
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Keywords: 
Electrical and Electronic Engineering; Condensed Matter Physics; Electronic, Optical and Magnetic Materials; Materials Chemistry; Kondo insulator; thermopower; power factor; anisotropic hybridization
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Abstract: 
The intermetallic compound CeRu4Sn6 has been tentatively classified as Kondo insulator. This class of material, especially non-cubic representatives, is not yet fully understood. Here we report thermopower measurements on single-crystalline CeRu4Sn6 between 2 K and 650 K, along the main crystallographic directions. Large positive thermopower is observed in the directions along which the hybridization is strong and a Kondo insulating gap forms. A negative contribution to the thermopower dominates for the crystallographic c axis where hybridization is weak and metallicity prevails.
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Research Areas: 
Sustainable Production and Technologies: 20%
Special and Engineering Materials: 30%
Quantum Many-Body Systems: 50%
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Science Branch: 
Physik, Astronomie
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