Electric Field Tuning Non-volatile Magnetism in Half-Metallic Alloys Co2FeAl/Pb(Mg1/3Nb2/3)O3-PbTiO3 Heterostructure

• Main Authors: Gesang Dunzhu, Fenglong Wang, Cai Zhou, Changjun Jiang
• Format: Article
• Language: English
• Published: SpringerOpen 2018-03-01
• Series: Nanoscale Research Letters
• Subjects: Heusler alloys; Co2FeAl/Pb(Mg1/3Nb2/3)O3-PbTiO3 heterostructures; Piezostrain; Non-volatile; Electric field-mediated
• Online Access: http://link.springer.com/article/10.1186/s11671-018-2489-2

Abstract We reported the non-volatile electric field-mediated magnetic properties in the half-metallic Heusler alloy Co2FeAl/Pb(Mg1/3Nb2/3)O3-PbTiO3 heterostructure at room temperature. The remanent magnetization with different applied electric field along [100] and [01-1] directions was achieved, which showed the non-volatile remanent magnetization driven by an electric field. The two giant reversible and stable remanent magnetization states were obtained by applying pulsed electric field. This can be attributed to the piezostrain effect originating from the piezoelectric substrate, which can be used for magnetoelectric-based memory devices.