Title :
Electric field control of the magnetization dynamics of ferromagnetic/ferroelectric multiferroic heterostructure
Author :
Xie, L. ; Nan, T. ; Hu, Z. ; Wang, X. ; Gao, Y. ; Chen, X. ; Liu, M. ; Sun, N.
Author_Institution :
ECE, Northeastern Univ., Boston, MA, USA
Abstract :
This work aims to systematically study the electric field modification of magnetization dynamics in two multiferroic heterostructures with different magnetoelectric coefficient by an electric field-dependent ferromagnetic resonance. Two ferromagnetic thin films (NiFe and FeGaB) grown by sputtering on PMN-PT single crystal substrate are considered. Electron spin resonance at X-band and vibrating sample magnetometry are employed for characterization. Results show that with the application of a positive electric field, the PMN-PT substrate undergoes rhombohedra to orthorhombic phase transition. This structural change in PMN-PT induces a change in the resonance field of the magnetic films.
Keywords :
boron alloys; ferroelectric materials; ferroelectric transitions; ferromagnetic materials; ferromagnetic resonance; gallium alloys; interface magnetism; iron alloys; lead compounds; magnetic thin films; magnetisation; magnetoelectric effects; magnetometry; metallic thin films; multiferroics; nickel alloys; paramagnetic resonance; sputter deposition; FeGaB-PMN-PbTiO3; NiFe-PMN-PbTiO3; PMN-PbTiO3; electric field control; electron spin resonance; ferromagnetic thin films; ferromagnetic-ferroelectric multiferroic heterostructure; field-dependent ferromagnetic resonance; magnetization dynamics; magnetoelectric coefficient; rhombohedra-orthorhombic phase transition; single crystal substrate; sputtering; vibrating sample magnetometry; Electric fields; Magnetic field induced strain; Magnetic resonance; Magnetostriction; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156526
