Enhanced magnetism and ferroelectricity in epitaxial Pb(Zr{sub 0.52}Ti{sub 0.48})O{sub 3}/CoFe{sub 2}O{sub 4}/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} multiferroic heterostructures grown using dual-laser ablation technique

Journal Article · Wed May 07 04:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4863165· OSTI ID:22273869

Mukherjee, Devajyoti; Hordagoda, Mahesh; Lampen, Paula; Phan, Manh-Huong; Srikanth, Hariharan; Witanachchi, Sarath; Mukherjee, Pritish ^[1]

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1. Department of Physics and Center for Integrated Functional Materials (CIFM), University of South Florida, Tampa, Florida 33620 (United States)

PbZr{sub 0.52}Ti{sub 0.48}O{sub 3}/CoFe{sub 2}O{sub 4}/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} (PZT/CFO/LSMO) and PZT/LSMO heterostructures were grown on single-crystal MgO (100) substrates using the dual-laser ablation technique. X-ray diffraction confirmed the epitaxial relationship between the layers in the heterostructures. Magnetization measurements showed in-plane uniaxial magnetic anisotropy in PZT/CFO/LSMO with enhanced saturation magnetization of 288 emu/cm{sup 3} as compared to 244 emu/cm{sup 3} for PZT/LSMO. With the introduction of the hard magnetic CFO, the low coercivity of PZT/LSMO increased from 0.1 kOe to 1.4 kOe. Polarization measurements showed well-saturated square hysteresis loops for PZT/CFO/LSMO with enhanced remanent polarization (P{sub r}) values of 69 μC/cm{sup 2} at a coercive field (E{sub c}) of 88 kV/cm as compared to P{sub r} = 51 μC/cm{sup 2} at E{sub c} = 39 kV/cm for PZT/LSMO. The improved hard ferromagnetic and ferroelectric properties in PZT/CFO/LSMO as compared to PZT/LSMO make it desirable for multiferroic device applications.

• OSTI ID: 22273869
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 17 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
ANISOTROPY
COBALT OXIDES
COERCIVE FORCE
COMPARATIVE EVALUATIONS
EPITAXY
FERROELECTRIC MATERIALS
HYSTERESIS
INTERFACES
MAGNESIUM OXIDES
MAGNETISM
MAGNETIZATION
MANGANATES
MONOCRYSTALS
POLARIZATION
PZT
STRONTIUM COMPOUNDS
SUBSTRATES
X-RAY DIFFRACTION