TITLE

Magnetoelectric effect near spin reorientation transition in giant magnetostrictive-aluminum nitride thin film structure

AUTHOR(S)
Tiercelin, Nicolas; Talbi, A.; Preobrazhensky, V.; Pernod, P.; Mortet, V.; Haenen, K.; Soltani, A.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/20/2008, Vol. 93 Issue 16, p162902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Hybrid giant magnetostrictive-piezoelectric film/film structures exhibiting magnetoelectric (ME) effect associated with a magnetic instability of the spin reorientation transition type are presented. We first present the theoretical study of a clamped beam actuator composed of a piezoelectric layer on a substrate actuated by a magnetostrictive layer. The actuator is a polished 50 μm thick 18×5 mm2 silicon substrate coated by an electrode, aluminum nitride, and magnetostrictive nanostructured layer. A ME coefficient of 30 V Oe-1 cm-1 at a 35 KHz longitudinal resonance was measured. Nonlinear excitation of this mode showed a “nonlinear” dynamic ME coefficient of 4 V Oe-1 cm-1.
ACCESSION #
35279332

 

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