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Proceedings Paper

Magnetoelectric device demonstrating nanoscale magnetic domain control
Author(s): Tien-Kan Chung; Scott Keller; Gregory P. Carman
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Paper Abstract

We report electric field control of nanoscale magnetic domain pattern transformation processes due to the converse magnetoelectric effect in a magnetoelectric device. The magnetoelectric device is a Ni-microdot/PZT-film bi-layer heterostructure. Due to the converse magnetoelectric effect, nanoscale magnetic domain (i.e. dot-domain/pseudo-single-domain/ short-stripe-domain/vortex-core) in the central region of a Ni microdot is controlled under an electric field (1.6 MV/m). The electric field induced domain-pattern transformation process (i.e. deformation and rotation of the nanoscale domain in the central region of the Ni microdot) is observed with the magnetic force microscopy. Upon removal of the electric field, the deformed/rotated nanoscale magnetic domain-pattern/vortex-core returns to its original state, i.e. reversible domain-pattern-transformation/vortex-core-motion.

Paper Details

Date Published: 31 March 2009
PDF: 6 pages
Proc. SPIE 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009, 72891S (31 March 2009); doi: 10.1117/12.815890
Show Author Affiliations
Tien-Kan Chung, Univ. of California, Los Angeles (United States)
Scott Keller, Univ. of California, Los Angeles (United States)
Gregory P. Carman, Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 7289:
Behavior and Mechanics of Multifunctional Materials and Composites 2009
Zoubeida Ounaies; Jiangyu Li, Editor(s)

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