Title :
Voltage control of magnetism in laminated LiFe5O8/PMN-PT multiferroic composites
Author :
Hu, Z. ; Chen, X. ; Nan, T. ; Wang, X. ; Gao, Y. ; Wang, Z. ; Srinivasan, G. ; Sun, N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
Abstract :
Multiferroic composites with combined ferromagnetic (FM) and ferroelectric (FE) phases have attracted extensive attention due to their strong magnetoelectric (ME) coupling at room temperature. This paper demonstrates large ferromagnetic resonance tunability through voltage induced, strain mediated ME coupling in LFO/PMNPT multiferroic heterostructures. A large effective magnetic anisotropy field change of 150 Oe was obtained, corresponding to a large ME coefficient of 12 .5 Oe cm/kV . LFO/PMNPT heterostructures have shown great potential for tunable RF/microwave device applications .
Keywords :
ferrites; ferromagnetic materials; ferromagnetic resonance; interface magnetism; laminates; lead compounds; lithium compounds; magnetic anisotropy; magnetoelectric effects; multiferroics; LiFe5O8-PMN-PbTiO3; ferromagnetic resonance; ferromagnetic resonance tunability; laminated multiferroic composites; magnetic anisotropy field; multiferroic heterostructures; tunable RF-microwave device applications; voltage control; voltage induced strain mediated magnetoelectric coupling; Couplings; Films; Magnetic multilayers; Magnetic resonance; Magnetoelectric effects; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157361
