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Even-odd effect for spin current through thin antiferromagnetic insulator

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2023

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Troncoso, Roberto E.

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Deutsche Forschungsgemeinschaft (DFG): 417034116

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Open Access-Veröffentlichung
Core Facility der Universität Konstanz

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Physical Review B. American Physical Society (APS). 2023, 108(21), 214416. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.108.214416

Zusammenfassung

Magnon spin transport in a metal-antiferromagnetic insulator-ferromagnetic insulator heterostructure is considered. The spin current is generated via the spin Seebeck effect and in the limit of clean sample where the effects of interface imperfections and lattice defects are excluded. For NiO as an antiferromagnetic insulator we have a magnetic order of antiferromagnetically combined planes which are internally in ferromagnetic order. We find that the sign of the spin current depends on the magnetization direction of the plane next to the metal resulting in an even-odd effect for the spin current. Moreover, as long as damping is excluded, this even-odd effect is the only remaining dependence on the NiO thickness for high temperatures.

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530 Physik

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Mesoscale and Nonoscale Physics, Magnon spin transport, thin antiferromagnetic insulator

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ISO 690ROHLING, Niklas, Roberto E. TRONCOSO, 2023. Even-odd effect for spin current through thin antiferromagnetic insulator. In: Physical Review B. American Physical Society (APS). 2023, 108(21), 214416. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.108.214416
BibTex
@article{Rohling2023-12-15Eveno-66549.2,
  year={2023},
  doi={10.1103/PhysRevB.108.214416},
  title={Even-odd effect for spin current through thin antiferromagnetic insulator},
  number={21},
  volume={108},
  issn={2469-9950},
  journal={Physical Review B},
  author={Rohling, Niklas and Troncoso, Roberto E.},
  note={Article Number: 214416}
}
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