Terahertz spin ratchet effect in magnetic metamaterials

URN to cite this document:: urn:nbn:de:bvb:355-epub-538322
DOI to cite this document:: 10.5283/epub.53832

Hild, Marcel ; Golub, Leonid E.

; Fuhrmann, A. ; Otteneder, Maximilian ; Kronseder, Matthias

; Matsubara, M. ; Kobayashi, T. ; Oshima, D. ; Honda, A. ; Kato, T. ; Wunderlich, Jörg ; Back, Christian H.

; Ganichev, Sergey D.

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Date of publication of this fulltext: 21 Feb 2023 10:28

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Abstract

We report on spin ratchet currents driven by terahertz radiation electric fields in a Co/Pt magnetic metamaterial formed by triangle-shaped holes forming an antidots lattice and subjected to an external magnetic field applied perpendicularly to the metal film plane. We show that for a radiation wavelength substantially larger than the period of the antidots array the radiation causes a ...