Enhancement of the nonlinear magnetoelectric effect in a ferromagnet-piezoelectric heterostructure due to nonlinearity of magnetization
| Autor: | Nikolai A Ekonomov, Melvin Vopson, Yuri K. Fetisov, Dmitri. A. Burdin |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Field (physics) Magnetoelectric effect Magnetostriction 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Condensed Matter::Materials Science Nonlinear system Magnetization Ferromagnetism 0103 physical sciences 0210 nano-technology Excitation |
| Zdroj: | Applied Physics Letters. 118:132901 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0045300 |
| Popis: | We describe theoretically and experimentally a previously unobserved mechanism for the induction of the nonlinear magnetoelectric response in ferromagnet-piezoelectric multiferroic composites. We show that contributions to the nonlinear magnetoelectric effects come not only from the nonlinearity of the magnetostriction coefficient on the dc magnetic field but also from the nonlinear hysteretic dependence of the magnetization of the magnetic phase within the composite. The nonlinearity of the magnetization leads to the self-generation of an additional ac magnetic field oscillating at twice the frequency of the excitation field. In turn, this leads to the strain-mediated activation of the piezocomponent, generating a voltage output response and doubling its frequency relative to that of the excitation field. For the PbZrTiO3/FeBSiC test sample examined in this study, we determined that this mechanism is responsible for an additional contribution of ∼14% to the nonlinear magnetoelectric effect. |
| Databáze: | OpenAIRE |
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