Electric-field-induced in-plane effective 90° magnetization rotation in Co2FeAl/PMN-PT structure*
- 4 January 2021
- journal article
- research article
- Published by IOP Publishing in Chinese Physics B
- Vol. 30 (5), 057504
- https://doi.org/10.1088/1674-1056/abd7de
Abstract
The in-plane effective 90 degree magnetization rotation of Co2FeAl thin film grown on PMN-PT substrate induced by electric field is investigated at room temperature. The magnetic hysteresis loops under different positive and negative electric fields are obtained, which reveals remanent magnetization can be mediated by electric field. Moreover, under positive electric fields, the obvious 90 degree magnetization rotation can be observed, while remanent magnetization nearly unchanged under negative electric fields. The result is consistent with the that of electric field dependence of effective magnetic field, which can be attributed to the piezostrain effect in Co2FeAl/PMN-PT structure. In addition, the piezostrain-mediated 90 degree magnetization rotation can be demonstrated by the result of resonance field changing with electric field in the measurement of ferromagnetic resonance, which are promising for the design of future multiferroic devices.Keywords
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