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
- 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, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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