Unconventional scaling and significant enhancement of the spin Seebeck effect in multilayers

R. Ramos, T. Kikkawa, M. H. Aguirre, I. Lucas, A. Anadón, T. Oyake, K. Uchida, H. Adachi, J. Shiomi, P. A. Algarabel, L. Morellón, S. Maekawa, E. Saitoh, M. R. Ibarra

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    54 Citations (Scopus)

    Abstract

    Spin Seebeck effects (SSEs) have been investigated in highly crystalline magnetic multilayer [Fe3O4/Pt]n films. Voltage as well as power generated by the SSE were found to be significantly enhanced with increasing the number of layers n. This voltage enhancement defies the simple understanding of the SSE and suggests that spin current flowing between the magnetic layers in the thickness direction plays an important role in multilayer SSE systems and the observed voltage enhancement.

    Original languageEnglish
    Article number220407
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume92
    Issue number22
    DOIs
    Publication statusPublished - Dec 11 2015

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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