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  Unidirectional Kondo scattering in layered NbS2

Martino, E., Putzke, C., König, M., Moll, P. J. W., Berger, H., LeBoeuf, D., et al. (2021). Unidirectional Kondo scattering in layered NbS2. npj 2D Materials and Applications, 5(1): 86, pp. 1-7. doi:10.1038/s41699-021-00265-6.

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 Creators:
Martino, Edoardo1, Author
Putzke, Carsten1, Author
König, Markus2, Author              
Moll, Philip J. W., Author
Berger, Helmuth1, Author
LeBoeuf, David1, Author
Leroux, Maxime1, Author
Proust, Cyril1, Author
Akrap, Ana1, Author
Kirmse, Holm1, Author
Koch, Christoph1, Author
Zhang, ShengNan1, Author
Wu, QuanSheng1, Author
Yazyev, Oleg V.1, Author
Forro, Laszlo1, Author
Semeniuk, Konstantin1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Markus König, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863470              

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 Abstract: Crystalline defects can modify quantum interactions in solids, causing unintuitive, even favourable, properties such as quantum Hall effect or superconducting vortex pinning. Here we present another example of this notion-an unexpected unidirectional Kondo scattering in single crystals of 2H-NbS2. This manifests as a pronounced low-temperature enhancement in the out-of-plane resistivity and thermopower below 40 K, hidden for the in-plane charge transport. The anomaly can be suppressed by the c-axis-oriented magnetic field, but is unaffected by field applied along the planes. The magnetic moments originate from layers of 1T-NbS2, which inevitably form during the growth, undergoing a charge-density-wave reconstruction with each superlattice cell (David-star-shaped cluster of Nb atoms) hosting a localised spin. Our results demonstrate the unique and highly anisotropic response of a spontaneously formed Kondo-lattice heterostructure, intercalated in a layered conductor.

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Language(s): eng - English
 Dates: 2021-11-182021-11-18
 Publication Status: Published in print
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Title: npj 2D Materials and Applications
Source Genre: Journal
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Publ. Info: London : Springer Nature
Pages: - Volume / Issue: 5 (1) Sequence Number: 86 Start / End Page: 1 - 7 Identifier: ISSN: 2397-7132
CoNE: https://pure.mpg.de/cone/journals/resource/2397-7132