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  Signatures of the Magnetic Entropy in the Thermopower Signals in Nanoribbons of the Magnetic Weyl Semimetal Co3Sn2S2

Geishendorf, K., Vir, P., Shekhar, C., Felser, C., Facio, J. I., van den Brink, J., et al. (2020). Signatures of the Magnetic Entropy in the Thermopower Signals in Nanoribbons of the Magnetic Weyl Semimetal Co3Sn2S2. Nano Letters, 20(1), 300-305. doi:10.1021/acs.nanolett.9b03822.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-981D-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-981F-E
Genre: Journal Article

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 Creators:
Geishendorf, Kevin1, Author
Vir, Praveen2, Author              
Shekhar, Chandra3, Author              
Felser, Claudia4, Author              
Facio, Jorge I.1, Author
van den Brink, Jeroen1, Author
Nielsch, Kornelius1, Author
Thomas, Andy1, Author
Goennenwein, Sebastian T. B.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Weyl semimetals exhibit interesting electronic properties due to their topological band structure. In particular, large anomalous Hall and anomalous Nernst signals are often reported, which allow for a detailed and quantitative study of subtle features. We pattern single crystals of the magnetic Weyl semimetal Co3Sn2S2 into nanoribbon devices using focused ion beam cutting and optical lithography. This approach enables a very precise study of the galvano- and thermomagnetic transport properties. Indeed, we found interesting features in the temperature dependency of the anomalous Hall and Nernst effects. We present an analysis of the data based on the Mott relation and identify in the Nernst response signatures of magnetic fluctuations enhancing the anomalous Nernst conductivity at the magnetic phase transition.

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Language(s): eng - English
 Dates: 2020-01-102020-01-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 20 (1) Sequence Number: - Start / End Page: 300 - 305 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403