Enhanced magnetoelectric effect in La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 multiferroic nanocomposite films with a SrRuO3 buffer layer

Tang, Zhehong; Tang, Minghua; Lv, Xiaosong; Cai, H. Q.; Xiao, Ying; Cheng, C. P.; Zhou, Yunhua; He, Jun

doi:10.1063/1.4803057

Cited by 29 publications

(8 citation statements)

References 39 publications

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“…Both of these, as well as the interfacial organic binder layer, would greatly deteriorate the ME coupling, especially the long-term stability. 10 Recent progress in enhancing the ME response of layered multiferroic film heterostructures, in which the substrate-imposed clamping on magnetostrictive deformation (strain) has been relieved by introducing thin cantilever substrates, [11][12][13][14] greatly facilitates the on-chip integration of these smart ME devices. An alternative to relieve such substrate clamping is to directly grow the piezoelectric thin film on a magnetostrictive substrate, known as a quasi-2-2 multiferroic film heterostructures, 1 which has an even simpler structure and allows highly efficient transfer of magnetostrictive strain across interface.…”

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confidence: 99%

Optimizing direct magnetoelectric coupling in Pb(Zr,Ti)O3/Ni multiferroic film heterostructures

Feng

Wang

et al. 2015

Applied Physics Letters

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Polycrystalline Pt thin films of different thicknesses (0–75 nm) were introduced using magnetron sputtering in Pb(Zr0.52Ti0.48)O3 (PZT, 400 nm in thickness)/Pt/Ni multiferroic film heterostructures, aimed at optimizing the transfer efficiency of magnetostrictive strain from the bottom Ni foil to the top PZT film and thus the direct magnetoelectric (ME) coupling. The ME voltage coefficient αE31 was directly measured, while the strain transfer efficiency k was obtained by combined experimental and theoretical analysis. At the optimum Pt-thickness of 30 nm, the polycrystalline film heterostructure shows the largest αE31 of 772 mV cm−1 Oe−1 at a low dc magnetic bias field of 86 Oe, as well as the highest k of 83% that is comparable to that in epitaxial quasi-2-2 film heterostructures.

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confidence: 99%

Optimizing direct magnetoelectric coupling in Pb(Zr,Ti)O3/Ni multiferroic film heterostructures

Feng

Wang

et al. 2015

Applied Physics Letters

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“…[2][3][4] There are also some reports on enhanced magneto-dielectric effect (MDE) in LSMO based multiferroic nanocomposite. 5 The factors which contribute in enhancement of MDE are connectivity and orientations of the two phases and are useful in device applications.…”

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confidence: 99%

Magneto-dielectric coupling and transport properties of the ferromagnetic-BaTiO3 composites

Kumar

Shankar

Dwivedi

et al. 2015

Applied Physics Letters

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Ferromagnetic and large magnetoresistance (MR) nanocomposites of La 0.67 Sr 0.33 MnO 3 -BaTiO 3 (LSMO-BTO) are synthesized via sol-gel route. The X-ray diffraction confirms the existence of two chemically separated phases in the composites. The maximum MR (35%) was achieved in LSMO-5% BTO (LB5). The coupling between the coexisting phases is observed from the dielectric anomaly at the ferromagnetic transition (T c ¼ 353 K) for LB5 composition. We observed maximum magnetodielectric effect at T c of 1.18% in magnitude for LB5 and the effect of magnetic field on other composites was significant. These results are related to the large spin polarization within grains as well as at the grain boundaries and the evidence of variation in dielectric parameters with magnetic field reveal the magnetoelectric coupling in LSMO-BTO nanocomposites. V C 2015 AIP Publishing LLC. [http://dx.

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“…There are some reports on enhanced magneto-dielectric coupling in La 0.7 Sr 0.3 MnO 3 -PbZr 0.52 Ti 0.c48 O 3 (LSMO-PZT) multiferroic nanocomposite [19]. The factors which contribute in enhancement of magnetodielectric coupling (MDC) in LSMO-PZT are connectivity and orientations of the ferroelectric and ferromagnetic phases [20,21].…”

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confidence: 97%

Structural, magnetic, dielectric and magneto-dielectric coupling analysis of ferromagnetic-PbZr0.52Ti0.48O3 nanocomposites

Kumar

Shankar

Kumar

et al. 2016

J Mater Sci: Mater Electron

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Nanocomposites of La 0.7 Sr 0.3 MnO 3 -PbZr 0.52 Ti 0.48 O 3 (LSMO-PZT) were synthesized by sol-gel route.The powder X-ray diffraction study confirmed the phase purity and the particle size (&30-34 nm) of the nanocomposites. Magnetic, dielectric and magneto-dielectric studies of LSMO-PZT nanocomposites reflected a coupling between dielectric and magnetic parameters near the magnetic transition temperature (T c & 360 K). The quantitative magneto-dielectric coupling was found to be maximum value of 1.34 in magnitude at 1.5 T and decrease with increase in frequency. This provides the signature of magneto-dielectric coupling qualitatively as well as quantitatively in LSMO-PZT nanocomposites.

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Enhanced magnetoelectric effect in La_0.67Sr_0.33MnO₃/PbZr_0.52Ti_0.48O₃ multiferroic nanocomposite films with a SrRuO₃ buffer layer

Cited by 29 publications

References 39 publications

Optimizing direct magnetoelectric coupling in Pb(Zr,Ti)O3/Ni multiferroic film heterostructures

Optimizing direct magnetoelectric coupling in Pb(Zr,Ti)O3/Ni multiferroic film heterostructures

Magneto-dielectric coupling and transport properties of the ferromagnetic-BaTiO3 composites

Structural, magnetic, dielectric and magneto-dielectric coupling analysis of ferromagnetic-PbZr0.52Ti0.48O3 nanocomposites

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