Large Electric-Field Tunability of Ferromagnetic Resonance Frequency in Ferromagnet/Piezoelectric Multiferroic Heterostructures

Author

Nguyen Nguyen Phuoc ; Chong Kim Ong

Author_Institution

Temasek Labs., Nat. Univ. of Singapore, Singapore, Singapore

Volume

6

fYear

2015

fDate

7/7/1905 12:00:00 AM

Firstpage

1

Lastpage

4

Abstract

We report our experimental observation of a large electrical tuning of ferromagnetic resonance frequency in FeCo/MnIr/[Pb(Mg_1/3Nb_2/3)O₃]_0.68-[PbTiO₃ ]_0.32(0 1 1) multiferroic heterostructures. Specifically, by varying an applied electrical field across the thickness of the substrate, the ferromagnetic resonance frequency can be tuned in a wide band from 3.6 to 10.5 GHz. The results are discussed in terms of the strain-mediated magneto-electric coupling between the ferromagnetic thin films and the piezoelectric substrates.

Keywords

cobalt alloys; ferromagnetic materials; ferromagnetic resonance; interface magnetism; iridium alloys; iron alloys; lead compounds; magnetic thin films; magnetoelectric effects; manganese alloys; multiferroics; piezoelectric materials; FeCo-MnIr-[Pb(Mg_0.33Nb_0.67)O₃]_0.68-[PbTiO₃]_0.32; electric-field tunability; electrical tuning; ferromagnet-piezoelectric multiferroic heterostructures; ferromagnetic resonance frequency; ferromagnetic thin films; frequency 3.6 GHz to 10.5 GHz; piezoelectric substrates; strain-mediated magnetoelectric coupling; Films; Magnetic resonance; Magnetoelectric effects; Perpendicular magnetic anisotropy; Substrates; Magnetic and spintronic materials; Magneto-Electronics; ferromagnetic resonance frequency; magneto-electric coupling; multiferroics;

fLanguage

English

Journal_Title

Magnetics Letters, IEEE

Publisher

ieee

ISSN

1949-307X

Type

jour

DOI

10.1109/LMAG.2015.2460220

Filename

7165639