Magnetic-Field-Assisted Electric-Field-Induced Domain Switching of a Magnetic Single Domain in a Multiferroic/Magnetoelectric Ni Nanochevron/[Pb(Mg 1/3 Nb 2/3 )O 3 ] 0.68 -[PbTiO 3 ] 0.32 (PMN-PT) Layered Structure

• Published in: Micromachines (Basel) Vol. 15; no. 1; p. 36
• Main Authors: Cheng, Chih-Cheng, Chen, Yu-Jen, Lin, Shin-Hung, Wang, Hsin-Min, Lin, Guang-Ping, Chung, Tien-Kan
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.01.2024; MDPI
• Subjects: Electric fields; electric-field control; Lead titanates; Magnetic fields; magnetic single domain; magnetoelectric; Microelectromechanical systems; multiferroic; Multiferroic materials; nano Ni chevrons; piezoelectric PMN–PT; Switching; magnetic single domain; multiferroic; electric-field control; nano Ni chevrons; magnetoelectric; domain transformation; domain switching; nanoelectromagnet; piezoelectric PMN–PT
• ISSN: 2072-666X; 2072-666X
• DOI: 10.3390/mi15010036

We report the magnetic-field-assisted electric-field-controlled domain switching of a magnetic single domain in a multiferroic/magnetoelectric Ni nanochevrons/[Pb(Mg Nb )O ] -[PbTiO ] (PMN-PT) layered structure. Initially, a magnetic field was applied in the transverse direction across single-domain Ni nanochevrons to transform each of them into a two-domain state. Subsequently, an electric field was applied to the layered structure, exerting the converse magnetoelectric effect to transform/release the two-domain Ni nanochevrons into one of two possible single-domain states. Finally, the experimental results showed that approximately 50% of the single-domain Ni nanochevrons were switched permanently after applying our approach (i.e., the magnetization direction was permanently rotated by 180 degrees). These results mark important advancements for future nanoelectromagnetic systems.