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

doi:10.1103/PhysRevB.92.220407

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

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

67 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 language	English
Article number	220407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.92.220407
Publication status	Published - Dec 11 2015

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Ramos, R., Kikkawa, T., Aguirre, M. H., Lucas, I., Anadón, A., Oyake, T., Uchida, K., Adachi, H., Shiomi, J., Algarabel, P. A., Morellón, L., Maekawa, S., Saitoh, E., & Ibarra, M. R. (2015). Unconventional scaling and significant enhancement of the spin Seebeck effect in multilayers. Physical Review B - Condensed Matter and Materials Physics, 92(22), Article 220407. https://doi.org/10.1103/PhysRevB.92.220407

Ramos, R, Kikkawa, T, Aguirre, MH, Lucas, I, Anadón, A, Oyake, T, Uchida, K, Adachi, H, Shiomi, J, Algarabel, PA, Morellón, L, Maekawa, S, Saitoh, E & Ibarra, MR 2015, 'Unconventional scaling and significant enhancement of the spin Seebeck effect in multilayers', Physical Review B - Condensed Matter and Materials Physics, vol. 92, no. 22, 220407. https://doi.org/10.1103/PhysRevB.92.220407

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title = "Unconventional scaling and significant enhancement of the spin Seebeck effect in multilayers",

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.",

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doi = "10.1103/PhysRevB.92.220407",

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AU - Ramos, R.

AU - Kikkawa, T.

AU - Aguirre, M. H.

AU - Lucas, I.

AU - Anadón, A.

AU - Oyake, T.

AU - Uchida, K.

AU - Adachi, H.

AU - Shiomi, J.

AU - Algarabel, P. A.

AU - Morellón, L.

AU - Maekawa, S.

AU - Saitoh, E.

AU - Ibarra, M. R.

PY - 2015/12/11

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N2 - 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.

AB - 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.

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

Abstract

ASJC Scopus subject areas

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