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Coexistence of Antiferromagnetism and Superconductivity in Mn/Nb(110)

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2022

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Lo Conte, Roberto
Bazarnik, Maciej
Palotás, Krisztián
Szunyogh, László
Kubetzka, André
von Bergmann, Kirsten
Wiesendanger, Roland

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https://doi.org/10.1103/PhysRevB.105.L100406
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http://arxiv.org/abs/2109.03743

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Physical Review B. American Physical Society (APS). 2022, 105(10), L100406. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.105.L100406

Zusammenfassung

We report on the structural and magnetic properties of single and double atomic layers of Mn on a clean and unreconstructed Nb(110) substrate. Low-temperature scanning tunneling spectroscopy measurements reveal a proximity-induced superconducting state in the Mn thin films, which are found to grow pseudomorphically on the Nb surface. Spin-polarized scanning tunneling microscopy measurements reveal a c(2x2) antiferromagnetic order in the Mn layers, with an out-of-plane spin-orientation. First-principles density functional theory calculations confirm the experimentally observed magnetic state, which is understood as the consequence of a strong intra- and inter-layer nearest-neighbor antiferromagnetic exchange coupling. These results are expected to be of importance for the design and the investigation of novel superconducting antiferromagnetic spintronic systems.

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ISO 690LO CONTE, Roberto, Maciej BAZARNIK, Krisztián PALOTÁS, Levente RÓZSA, László SZUNYOGH, André KUBETZKA, Kirsten VON BERGMANN, Roland WIESENDANGER, 2022. Coexistence of Antiferromagnetism and Superconductivity in Mn/Nb(110). In: Physical Review B. American Physical Society (APS). 2022, 105(10), L100406. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.105.L100406
BibTex
@article{LoConte2022Coexi-57338,
  year={2022},
  doi={10.1103/PhysRevB.105.L100406},
  title={Coexistence of Antiferromagnetism and Superconductivity in Mn/Nb(110)},
  number={10},
  volume={105},
  issn={2469-9950},
  journal={Physical Review B},
  author={Lo Conte, Roberto and Bazarnik, Maciej and Palotás, Krisztián and Rózsa, Levente and Szunyogh, László and Kubetzka, André and von Bergmann, Kirsten and Wiesendanger, Roland},
  note={Article Number: L100406}
}
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