Detection of current-driven magnetic domain wall deformation using anisotropic magnetoresistance effect

H. Maekawa; T. Nozaki; S. Kasai; M. Mizuguchi; M. Shiraishi; T. Ono; Y. Suzuki

doi:10.1002/pssa.200777255

Detection of current-driven magnetic domain wall deformation using anisotropic magnetoresistance effect

H. Maekawa, T. Nozaki, S. Kasai, M. Mizuguchi, M. Shiraishi, T. Ono, Y. Suzuki

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

Abstract

We report on an electrical detection of current driven domain wall (DW) deformation induced by a current pulse injection in arc-shaped permalloy (Py) submicron wires. Current polarity and pulse length dependence were investigated under an assisting external magnetic field. Initial DW states prepared by an application of a large magnetic field were distributed to two distinct DW states. A current pulse application promoted transition between them. In addition, the third DW state was established only by an application of the short pulses (<50 ns). This result suggests the possibility of the high-speed control of the DW dynamics.

Original language	English
Pages (from-to)	3987-3990
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	204
Issue number	12
DOIs	https://doi.org/10.1002/pssa.200777255
Publication status	Published - 2007 Dec
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry
Electrical and Electronic Engineering

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10.1002/pssa.200777255

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abstract = "We report on an electrical detection of current driven domain wall (DW) deformation induced by a current pulse injection in arc-shaped permalloy (Py) submicron wires. Current polarity and pulse length dependence were investigated under an assisting external magnetic field. Initial DW states prepared by an application of a large magnetic field were distributed to two distinct DW states. A current pulse application promoted transition between them. In addition, the third DW state was established only by an application of the short pulses (<50 ns). This result suggests the possibility of the high-speed control of the DW dynamics.",

author = "H. Maekawa and T. Nozaki and S. Kasai and M. Mizuguchi and M. Shiraishi and T. Ono and Y. Suzuki",

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AU - Maekawa, H.

AU - Nozaki, T.

AU - Kasai, S.

AU - Mizuguchi, M.

AU - Shiraishi, M.

AU - Ono, T.

AU - Suzuki, Y.

PY - 2007/12

Y1 - 2007/12

N2 - We report on an electrical detection of current driven domain wall (DW) deformation induced by a current pulse injection in arc-shaped permalloy (Py) submicron wires. Current polarity and pulse length dependence were investigated under an assisting external magnetic field. Initial DW states prepared by an application of a large magnetic field were distributed to two distinct DW states. A current pulse application promoted transition between them. In addition, the third DW state was established only by an application of the short pulses (<50 ns). This result suggests the possibility of the high-speed control of the DW dynamics.

AB - We report on an electrical detection of current driven domain wall (DW) deformation induced by a current pulse injection in arc-shaped permalloy (Py) submicron wires. Current polarity and pulse length dependence were investigated under an assisting external magnetic field. Initial DW states prepared by an application of a large magnetic field were distributed to two distinct DW states. A current pulse application promoted transition between them. In addition, the third DW state was established only by an application of the short pulses (<50 ns). This result suggests the possibility of the high-speed control of the DW dynamics.

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Detection of current-driven magnetic domain wall deformation using anisotropic magnetoresistance effect

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