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) |
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Pages (from-to) | 2641-2643 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 75 |
Issue number | 17 |
DOIs | |
State | Published - Oct 25 1999 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)