SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling
The dielectric properties of elastomer composites formed by dispersions of bismuth ferrite (BiFeO3) multiferroic filler particles in styrene-butadiene rubber (SBR) were studied. The SBR/BiFeO3 films (10-100 μm) were prepared in the presence of electric (E) or magnetic fields (H), showing remarkable...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v119_n41_p23319_SalehMedina http://hdl.handle.net/20.500.12110/paper_19327447_v119_n41_p23319_SalehMedina |
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paper:paper_19327447_v119_n41_p23319_SalehMedina2023-06-08T16:31:37Z SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling Saleh Medina, Leila Maria Jorge, Guillermo Antonio Rubi, Diego D'Accorso, Norma Beatriz Negri, Ricardo Martin Capacitors Dielectric properties Dielectric properties of solids Elastomers Electric fields Electromagnetic coupling Ferroelectric films Fillers Leakage currents Magnetic fields Magnetism Rubber Styrene Bismuth ferrites Dielectric behavior Elastomer composites Ferroelectric response Magnetic and electric fields Magnetoelectric couplings Strong dependences Styrene butadiene rubber Film preparation The dielectric properties of elastomer composites formed by dispersions of bismuth ferrite (BiFeO3) multiferroic filler particles in styrene-butadiene rubber (SBR) were studied. The SBR/BiFeO3 films (10-100 μm) were prepared in the presence of electric (E) or magnetic fields (H), showing remarkable characteristics in comparison with systems obtained in its absence. The dispersed multiferroic fillers form clusters of much smaller size when prepared under E or H. The dielectric constant, ε (measured up to 1 MHz), increases with BiFeO3 concentration until reaching saturation. The rise of ε was obtained at concentrations much lower for samples prepared in the presence of E or H than in its absence. Saturation is assigned to connectivity between filler clusters at the largest concentrations, increasing leakage currents and limiting the dielectric behavior. The whole dependence of ε with BiFeO3 concentration was described using a proposed model. The dc resistivities, ρ, increase with BiFeO3 concentration but remain high (ρ ≈ 10 Gω·cm), allowing using the films as capacitors with filter action between 100 kHz and 7 MHz. The films prepared in the presence of H present strong dependence of the ferroelectric response with magnetic fields applied after preparation; that is, electromagnetic coupling was observed in those samples. © 2015 American Chemical Society. Fil:Saleh Medina, L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Jorge, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rubi, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:D'Accorso, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Negri, R.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v119_n41_p23319_SalehMedina http://hdl.handle.net/20.500.12110/paper_19327447_v119_n41_p23319_SalehMedina |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Capacitors Dielectric properties Dielectric properties of solids Elastomers Electric fields Electromagnetic coupling Ferroelectric films Fillers Leakage currents Magnetic fields Magnetism Rubber Styrene Bismuth ferrites Dielectric behavior Elastomer composites Ferroelectric response Magnetic and electric fields Magnetoelectric couplings Strong dependences Styrene butadiene rubber Film preparation |
| spellingShingle |
Capacitors Dielectric properties Dielectric properties of solids Elastomers Electric fields Electromagnetic coupling Ferroelectric films Fillers Leakage currents Magnetic fields Magnetism Rubber Styrene Bismuth ferrites Dielectric behavior Elastomer composites Ferroelectric response Magnetic and electric fields Magnetoelectric couplings Strong dependences Styrene butadiene rubber Film preparation Saleh Medina, Leila Maria Jorge, Guillermo Antonio Rubi, Diego D'Accorso, Norma Beatriz Negri, Ricardo Martin SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| topic_facet |
Capacitors Dielectric properties Dielectric properties of solids Elastomers Electric fields Electromagnetic coupling Ferroelectric films Fillers Leakage currents Magnetic fields Magnetism Rubber Styrene Bismuth ferrites Dielectric behavior Elastomer composites Ferroelectric response Magnetic and electric fields Magnetoelectric couplings Strong dependences Styrene butadiene rubber Film preparation |
| description |
The dielectric properties of elastomer composites formed by dispersions of bismuth ferrite (BiFeO3) multiferroic filler particles in styrene-butadiene rubber (SBR) were studied. The SBR/BiFeO3 films (10-100 μm) were prepared in the presence of electric (E) or magnetic fields (H), showing remarkable characteristics in comparison with systems obtained in its absence. The dispersed multiferroic fillers form clusters of much smaller size when prepared under E or H. The dielectric constant, ε (measured up to 1 MHz), increases with BiFeO3 concentration until reaching saturation. The rise of ε was obtained at concentrations much lower for samples prepared in the presence of E or H than in its absence. Saturation is assigned to connectivity between filler clusters at the largest concentrations, increasing leakage currents and limiting the dielectric behavior. The whole dependence of ε with BiFeO3 concentration was described using a proposed model. The dc resistivities, ρ, increase with BiFeO3 concentration but remain high (ρ ≈ 10 Gω·cm), allowing using the films as capacitors with filter action between 100 kHz and 7 MHz. The films prepared in the presence of H present strong dependence of the ferroelectric response with magnetic fields applied after preparation; that is, electromagnetic coupling was observed in those samples. © 2015 American Chemical Society. |
| author |
Saleh Medina, Leila Maria Jorge, Guillermo Antonio Rubi, Diego D'Accorso, Norma Beatriz Negri, Ricardo Martin |
| author_facet |
Saleh Medina, Leila Maria Jorge, Guillermo Antonio Rubi, Diego D'Accorso, Norma Beatriz Negri, Ricardo Martin |
| author_sort |
Saleh Medina, Leila Maria |
| title |
SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| title_short |
SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| title_full |
SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| title_fullStr |
SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| title_full_unstemmed |
SBR/BiFeO3 Elastomer Capacitor Films Prepared under Magnetic and Electric Fields Displaying Magnetoelectric Coupling |
| title_sort |
sbr/bifeo3 elastomer capacitor films prepared under magnetic and electric fields displaying magnetoelectric coupling |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v119_n41_p23319_SalehMedina http://hdl.handle.net/20.500.12110/paper_19327447_v119_n41_p23319_SalehMedina |
| work_keys_str_mv |
AT salehmedinaleilamaria sbrbifeo3elastomercapacitorfilmspreparedundermagneticandelectricfieldsdisplayingmagnetoelectriccoupling AT jorgeguillermoantonio sbrbifeo3elastomercapacitorfilmspreparedundermagneticandelectricfieldsdisplayingmagnetoelectriccoupling AT rubidiego sbrbifeo3elastomercapacitorfilmspreparedundermagneticandelectricfieldsdisplayingmagnetoelectriccoupling AT daccorsonormabeatriz sbrbifeo3elastomercapacitorfilmspreparedundermagneticandelectricfieldsdisplayingmagnetoelectriccoupling AT negriricardomartin sbrbifeo3elastomercapacitorfilmspreparedundermagneticandelectricfieldsdisplayingmagnetoelectriccoupling |
| _version_ |
1768543394136588288 |