Magnetism and exchange-bias effect at the MnN/Fe interface

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2018
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Simon, Eszter
Khmelevskyi, Sergii
Palotás, Krisztián
Szunyogh, László
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Physical Review B. 2018, 98(9), 094415. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.98.094415
Zusammenfassung

Based on ab initio calculations and spin dynamics simulations, we perform a detailed study on the magnetic properties of bulk MnN and the MnN/Fe interface. We determine the spin model parameters for the θ-phase of bulk MnN, and we find that the competition between the nearest and the next-nearest-neighbor interactions leads to antiferromagnetic ordering of the Mn spins, in agreement with previous theoretical and experimental results. At the MnN/Fe interface, a sizable Dzyaloshinskii-Moriya interaction appears leading to a stable exchange-bias effect. We study the dependences of the exchange-bias effect on the thicknesses of the ferromagnetic and the antiferromagnetic layers, and we compare them to experimentally obtained results [Meinert et al., Phys. Rev. B 92, 144408 (2015)].

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ISO 690SIMON, Eszter, Rocio YANES DÍAZ, Sergii KHMELEVSKYI, Krisztián PALOTÁS, László SZUNYOGH, Ulrich NOWAK, 2018. Magnetism and exchange-bias effect at the MnN/Fe interface. In: Physical Review B. 2018, 98(9), 094415. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.98.094415
BibTex
@article{Simon2018-09-13Magne-43394,
  year={2018},
  doi={10.1103/PhysRevB.98.094415},
  title={Magnetism and exchange-bias effect at the MnN/Fe interface},
  number={9},
  volume={98},
  issn={2469-9950},
  journal={Physical Review B},
  author={Simon, Eszter and Yanes Díaz, Rocio and Khmelevskyi, Sergii and Palotás, Krisztián and Szunyogh, László and Nowak, Ulrich},
  note={Article Number: 094415}
}
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