Switching asymmetries in closely coupled magnetic nanostructure arrays

R. E. Dunin-Borkowski; Martha McCartney; B. Kardynal; David Smith; M. R. Scheinfein

doi:10.1063/1.125104

Switching asymmetries in closely coupled magnetic nanostructure arrays

R. E. Dunin-Borkowski, Martha McCartney, B. Kardynal, David Smith, M. R. Scheinfein

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56 Scopus citations

Abstract

Cobalt nanostructures (220 and 300 nm × 275 nm × 30nm) were fabricated using electron beam lithography into ordered, close proximity (170 nm) arrays. Domain configurations with accompanying hysteresis loops were measured using off-axis electron holography. Measurements were compared to solutions of the Landau-Lifshitz-Gilbert equations. Both exhibit switching asymmetries due to strong intercell coupling and the presence of a field normal to the cell surface. Magnetic domain configurations during switching depended strongly on the initial conditions, as well as the direction of the perpendicular field relative to the in-plane hysteresis-field direction.

Original language	English (US)
Pages (from-to)	2641-2643
Number of pages	3
Journal	Applied Physics Letters
Volume	75
Issue number	17
DOIs	https://doi.org/10.1063/1.125104
State	Published - Oct 25 1999

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Cobalt nanostructures (220 and 300 nm × 275 nm × 30nm) were fabricated using electron beam lithography into ordered, close proximity (170 nm) arrays. Domain configurations with accompanying hysteresis loops were measured using off-axis electron holography. Measurements were compared to solutions of the Landau-Lifshitz-Gilbert equations. Both exhibit switching asymmetries due to strong intercell coupling and the presence of a field normal to the cell surface. Magnetic domain configurations during switching depended strongly on the initial conditions, as well as the direction of the perpendicular field relative to the in-plane hysteresis-field direction.",

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AU - Dunin-Borkowski, R. E.

AU - McCartney, Martha

AU - Kardynal, B.

AU - Smith, David

AU - Scheinfein, M. R.

PY - 1999/10/25

Y1 - 1999/10/25

N2 - Cobalt nanostructures (220 and 300 nm × 275 nm × 30nm) were fabricated using electron beam lithography into ordered, close proximity (170 nm) arrays. Domain configurations with accompanying hysteresis loops were measured using off-axis electron holography. Measurements were compared to solutions of the Landau-Lifshitz-Gilbert equations. Both exhibit switching asymmetries due to strong intercell coupling and the presence of a field normal to the cell surface. Magnetic domain configurations during switching depended strongly on the initial conditions, as well as the direction of the perpendicular field relative to the in-plane hysteresis-field direction.

AB - Cobalt nanostructures (220 and 300 nm × 275 nm × 30nm) were fabricated using electron beam lithography into ordered, close proximity (170 nm) arrays. Domain configurations with accompanying hysteresis loops were measured using off-axis electron holography. Measurements were compared to solutions of the Landau-Lifshitz-Gilbert equations. Both exhibit switching asymmetries due to strong intercell coupling and the presence of a field normal to the cell surface. Magnetic domain configurations during switching depended strongly on the initial conditions, as well as the direction of the perpendicular field relative to the in-plane hysteresis-field direction.

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Switching asymmetries in closely coupled magnetic nanostructure arrays

Abstract

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