Electric-field induced strain modulation of magnetization in Fe-Ga/Pb(Mg{sub 1/3}Nb{sub 2/3})-PbTiO{sub 3} magnetoelectric heterostructures

Journal Article · Fri Feb 28 04:00:00 EST 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4866495· OSTI ID:22278017

Zhang, Yue; Wang, Zhiguang; Wang, Yaojin; Luo, Chengtao; Li, Jiefang; Viehland, Dwight ^[1]

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1. Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States)

Magnetostrictive Fe-Ga thin layers were deposited on 〈110〉-oriented Pb(Mg{sub 1/3}Nb{sub 2/3})-30%PbTiO{sub 3} (PMN-30%PT) substrates by pulsed laser deposition. The as-prepared heterostructures showed columnar arrays aligned in the out-of-plane direction. Transmission electron microscopy revealed nanocrystalline regions within the columnar arrays of the Fe-Ga film. The heterostructure exhibited a strong converse magnetoelectric coupling effect of up to 4.55 × 10{sup −7} s m{sup −1}, as well as an electric field tunability of the in-plane magnetic anisotropy. Furthermore, the remanent magnetization states of the Fe-Ga films can be reversibly and irreversibly changed by external electric fields, suggesting a promising and robust application in magnetic random access memories and spintronics.

• OSTI ID: 22278017
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
COUPLING
CRYSTALS
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ENERGY BEAM DEPOSITION
GALLIUM
IRON
LASER RADIATION
LEAD
LEAD COMPOUNDS
MAGNETIZATION
MAGNETOSTRICTION
NANOSTRUCTURES
NIOBIUM
PULSED IRRADIATION
SUBSTRATES
THIN FILMS
TITANATES
TRANSMISSION ELECTRON MICROSCOPY