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  Field-Modulated Anomalous Hall Conductivity and Planar Hall Effect in Co3Sn2S2 Nanoflakes

Yang, S.-Y., Noky, J., Gayles, J., Dejene, F. K., Sun, Y., Dörr, M., et al. (2020). Field-Modulated Anomalous Hall Conductivity and Planar Hall Effect in Co3Sn2S2 Nanoflakes. Nano Letters, 20(11), 7860-7867. doi:10.1021/acs.nanolett.0c02219.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-7B4B-C Version Permalink: http://hdl.handle.net/21.11116/0000-0007-815A-2
Genre: Journal Article

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 Creators:
Yang, Shuo-Ying1, Author
Noky, Jonathan2, Author              
Gayles, Jacob2, Author              
Dejene, Fasil Kidane1, Author
Sun, Yan2, Author              
Dörr, Mathias1, Author
Skourski, Yurii1, Author
Felser, Claudia3, Author              
Ali, Mazhar Nawaz1, Author
Liu, Enke1, Author
Parkin, Stuart S. P.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Time-reversal-symmetry-breaking Weyl semimetals (WSMs) have attracted great attention recently because of the interplay between intrinsic magnetism and topologically nontrivial electrons. Here, we present anomalous Hall and planar Hall effect studies on Co3Sn2S2 nanoflakes, a magnetic WSM hosting stacked Kagome lattice. The reduced thickness modifies the magnetic properties of the nanoflake, resulting in a 15-time larger coercive field compared with the bulk, and correspondingly modifies the transport properties. A 22 enhancement of the intrinsic anomalous Hall conductivity (AHC), as compared to bulk material, was observed. A magnetic field-modulated AHC, which may be related to the changing Weyl point separation with magnetic field, was also found. Furthermore, we showed that the PHE in a hard magnetic WSM is a complex interplay between ferromagnetism, orbital magnetoresistance, and chiral anomaly. Our findings pave the way for a further understanding of exotic transport features in the burgeoning field of magnetic topological phases.

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Language(s): eng - English
 Dates: 2020-09-282020-09-28
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.nanolett.0c02219
 Degree: -

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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 (11) Sequence Number: - Start / End Page: 7860 - 7867 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403