Magnetically dependent photovoltages in permalloy films and gratings

Magnetically dependent photovoltages in permalloy films and gratings

Significant photoinduced voltages observed in permalloy structures consist of two contributions with different origins, which depend on illumination conditions, structure geometry and magnetic field in distinct ways. The first component is the plasmon drag effect voltage closely associated with plas...

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Veröffentlicht in:Scientific reports 2025-01, Vol.15 (1), p.2543-7, Article 2543
Hauptverfasser: Rab, Md Afzalur, Keene, David W., Nesbit, Sean, Baker, Terence, Noginova, Natalia
Format: Artikel
Sprache:eng
Schlagworte:
639/624
639/624/1020
639/624/400
639/766/1130/2798
639/766/1130/2799
639/766/119/2793
Electric currents
Geometry
Humanities and Social Sciences
Lasers
Magnetic fields
multidisciplinary
Propagation
Science
Science (multidisciplinary)
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Zusammenfassung:Significant photoinduced voltages observed in permalloy structures consist of two contributions with different origins, which depend on illumination conditions, structure geometry and magnetic field in distinct ways. The first component is the plasmon drag effect voltage closely associated with plasmon propagation. The second contribution is magnetically dependent and can be related to photoinduced gradients in the sample temperature and spin polarization. Possible mechanisms of the effect are discussed.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-025-85817-2