Magnetically dependent photovoltages in permalloy films and gratings

Abstract 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...

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Main Authors: Md Afzalur Rab, David W. Keene, Sean Nesbit, Terence Baker, Natalia Noginova
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-85817-2
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author Md Afzalur Rab
David W. Keene
Sean Nesbit
Terence Baker
Natalia Noginova
author_facet Md Afzalur Rab
David W. Keene
Sean Nesbit
Terence Baker
Natalia Noginova
author_sort Md Afzalur Rab
collection DOAJ
description Abstract 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.
format Article
id doaj-art-c3f26704f632407f94b614a3c4cbbf81
institution Kabale University
issn 2045-2322
language English
publishDate 2025-01-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj-art-c3f26704f632407f94b614a3c4cbbf812025-01-26T12:28:02ZengNature PortfolioScientific Reports2045-23222025-01-011511710.1038/s41598-025-85817-2Magnetically dependent photovoltages in permalloy films and gratingsMd Afzalur Rab0David W. Keene1Sean Nesbit2Terence Baker3Natalia Noginova4Center for Materials Research, Norfolk State UniversityCenter for Materials Research, Norfolk State UniversityCenter for Materials Research, Norfolk State UniversityCenter for Materials Research, Norfolk State UniversityCenter for Materials Research, Norfolk State UniversityAbstract 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.https://doi.org/10.1038/s41598-025-85817-2
spellingShingle Md Afzalur Rab
David W. Keene
Sean Nesbit
Terence Baker
Natalia Noginova
Magnetically dependent photovoltages in permalloy films and gratings
Scientific Reports
title Magnetically dependent photovoltages in permalloy films and gratings
title_full Magnetically dependent photovoltages in permalloy films and gratings
title_fullStr Magnetically dependent photovoltages in permalloy films and gratings
title_full_unstemmed Magnetically dependent photovoltages in permalloy films and gratings
title_short Magnetically dependent photovoltages in permalloy films and gratings
title_sort magnetically dependent photovoltages in permalloy films and gratings
url https://doi.org/10.1038/s41598-025-85817-2
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AT seannesbit magneticallydependentphotovoltagesinpermalloyfilmsandgratings
AT terencebaker magneticallydependentphotovoltagesinpermalloyfilmsandgratings
AT natalianoginova magneticallydependentphotovoltagesinpermalloyfilmsandgratings