Magnetization switching in nanopillars with FePt alloys by spin-polarized current

T. Seki; S. Mitani; K. Yakushiji; K. Takanashi

doi:10.1063/1.2176064

Magnetization switching in nanopillars with FePt alloys by spin-polarized current

T. Seki, S. Mitani, K. Yakushiji, K. Takanashi

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

12 Citations (Scopus)

Abstract

FePtAuFePt nanopillars with current-perpendicular-to-plane geometries were fabricated, and current induced magnetization switching was demonstrated. Resistance measured with sweeping current showed the resistance change due to the change of the magnetization alignment of the two FePt layers, which was interpreted as the magnetization switching by spin-polarized current. The critical current density for the magnetization switching of the FePt layer with a uniaxial magnetic anisotropy of 2× 106 ergs cm3 was of the order of 108 A cm2.

Original language	English
Article number	08G521
Journal	Journal of Applied Physics
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.2176064
Publication status	Published - 2006

ASJC Scopus subject areas

Physics and Astronomy(all)

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@article{27165c12756944b59d3e7f38001f4fde,

title = "Magnetization switching in nanopillars with FePt alloys by spin-polarized current",

abstract = "FePtAuFePt nanopillars with current-perpendicular-to-plane geometries were fabricated, and current induced magnetization switching was demonstrated. Resistance measured with sweeping current showed the resistance change due to the change of the magnetization alignment of the two FePt layers, which was interpreted as the magnetization switching by spin-polarized current. The critical current density for the magnetization switching of the FePt layer with a uniaxial magnetic anisotropy of 2× 106 ergs cm3 was of the order of 108 A cm2.",

author = "T. Seki and S. Mitani and K. Yakushiji and K. Takanashi",

note = "Funding Information: This work was supported by IT-Program RR2002 from MEXT. The structural characterization and the sample fabrication were partly performed at Advanced Research Center of Metallic Glasses, IMR, Tohoku University. The authors would like to acknowledge Y. Murakami for technical assistance. One of the authors (T.S.) is supported by Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists. ",

year = "2006",

doi = "10.1063/1.2176064",

language = "English",

volume = "99",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Magnetization switching in nanopillars with FePt alloys by spin-polarized current

AU - Seki, T.

AU - Mitani, S.

AU - Yakushiji, K.

AU - Takanashi, K.

N1 - Funding Information: This work was supported by IT-Program RR2002 from MEXT. The structural characterization and the sample fabrication were partly performed at Advanced Research Center of Metallic Glasses, IMR, Tohoku University. The authors would like to acknowledge Y. Murakami for technical assistance. One of the authors (T.S.) is supported by Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists.

PY - 2006

Y1 - 2006

N2 - FePtAuFePt nanopillars with current-perpendicular-to-plane geometries were fabricated, and current induced magnetization switching was demonstrated. Resistance measured with sweeping current showed the resistance change due to the change of the magnetization alignment of the two FePt layers, which was interpreted as the magnetization switching by spin-polarized current. The critical current density for the magnetization switching of the FePt layer with a uniaxial magnetic anisotropy of 2× 106 ergs cm3 was of the order of 108 A cm2.

AB - FePtAuFePt nanopillars with current-perpendicular-to-plane geometries were fabricated, and current induced magnetization switching was demonstrated. Resistance measured with sweeping current showed the resistance change due to the change of the magnetization alignment of the two FePt layers, which was interpreted as the magnetization switching by spin-polarized current. The critical current density for the magnetization switching of the FePt layer with a uniaxial magnetic anisotropy of 2× 106 ergs cm3 was of the order of 108 A cm2.

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