Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: T017
DOI: https://doi.org/10.24326/ICDSUPL2.T017
Published online: 19 April 2023
ICDSUPL, 2, T017 (2023)
Magnetoelectric properties of PZT/TERFENOL-D multiferroic composite
Jakub Grotel1*, Tomasz Pikula1, Elżbieta Jartych1
1 Faculty of Electronics and Information Technology, Lublin University of Technology; Nadbystrzycka 38A, 20-618, Lublin, Poland
* Corresponding author: j.grotel@pollub.pl
Abstract
Magnetoelectricity is a material property which involves a coupling between a magnetic and ferroelectric order. To be specific, when a magnetoelectric material is placed in an external magnetic field, it becomes electrically polarized. On the other hand, if placed in an external electric field, the material becomes magnetized. The quantity that describes this relationship is known as the magnetoelectric (ME) coupling coefficient. Magnetoelectric materials are collectively referred to as multiferroics. Multiferroics present a wide range of potential applications as electronic or spintronic device components, e.g., transducers, logic gates, nonvolatile memory. Continuous development of these materials increases the chance for innovation and commercial implementation in relevant fields, such as: computer science, renewable energy engineering and oncology. The main goal of multiferroic research is to obtain a material, in which the ME coupling is present at room temperature. In most cases, the effect can only be observed in the cryogenic temperature range. Additionally, for multiferroic to be commercially viable, the coupling has to be sufficiently strong and easy to control. The research is hampered by the lack of direct measurement methods that would enable the ME coupling coefficient to be precisely quantified. Multiferroics exist as single-phase and composite materials. Composites present several major advantages over single-phase materials. Firstly, the synthesis method is much simpler. Basic composite laminates consist of two phases (e.g., piezoelectric and magnetostrictive) that are mechanically joined together. Secondly, multiferroic composites exhibit a considerably larger ME coupling, especially in resonance state. Thirdly, the magnetoelectric effect is not limited to cryogenic temperatures. The focus of the present work is the PZT/TERFENOL-D composite laminate. PZT, i.e., lead zirconate titanate, is a piezoelectric compound, whereas TERFENOL-D is a magnetostrictive alloy of terbium, dysprosium and iron. Magnetoelectric properties were investigated via the lock-in technique under various conditions. The investigation revealed numerous resonance peaks in one sample which can be explained by the multilayered structure of the composite. Strong signals were recorded with values up to 0.7 volt (for single-phase compounds, the signals are of the order of millivolts). Furthermore, similar results in literature corroborate the findings of the investigation.
How to cite
J. Grotel, T. Pikula, E. Jartych, 2023. Magnetoelectric properties of PZT/TERFENOL-D multiferroic composite. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.T017