Converse magnetoelectric coupling in multilayer capacitors

Israel, C.; Kar-Narayan, S.; Mathur, N. D.
October 2008
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p173501
Academic Journal
We report electrically induced changes of 20% in both the remnant magnetization and the coercive field of a magnetoelectric heterostructure. This heterostructure is an industrially produced multilayer capacitor comprising Ni-based magnetostrictive electrodes sandwiching a BaTiO3-based dielectric that is ferroelectric and therefore piezoelectric. Both magnetization and strain are shown to be hysteretic with applied electric field. These inexpensive capacitors might find use as electrically controlled ferromagnets.


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