Room-temperature magnetoelectric coupling measurements of selected particulate composites
Artykuł w czasopiśmie
MNiSW
100
Lista 2024
| Status: | |
| Autorzy: | Grotel Jakub, Pikula Tomasz, Bochenek Dariusz, Jartych Elżbieta |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2025 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 635 |
| Numer artykułu: | 173614 |
| Strony: | 1 - 11 |
| Impact Factor: | 3,0 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The coupling between magnetic and electrical properties of a material is known as the magnetoelectric (ME) effect. The effect occurs both in single-phase and composite materials. Composites possess a number of advan- tages over the former group, e.g., stronger and room-temperature ME coupling. ME composites usually consist of piezoelectric and magnetostrictive phases, in which the order parameter (electric polarization, magnetization) is tuned by strain in the system. Research of ME materials presents several challenges: (i) limited number of ma- terials with properties suitable for commercial applications, (ii) lack or low availability of standardized reference samples, (iii) not completely standardized or correctly implemented measurement techniques and (iv) lack of any measurement uncertainty calculations in published papers. The aim of the present work was to obtain ferrite- based particulate composites and examine their magnetoelectric characteristics at room temperature. Addi- tionally, the influence of the synthesis process (sintering vs. hot pressing) and ion doping on the magnetoelectric response were examined. The data complements structural, electrical and magnetic investigations of the aforementioned compounds carried out and published previously by the authors. The authors briefly review the basics of the lock-in technique (dynamic method) used in ME coupling investigations and highlight advantages over the other existing methods. The paper discusses the issue of the proper design and calibration of the experimental set-up (the case of noise contribution to the output signal), a step that is omitted in most publi- cations. A simple uncertainty analysis is proposed as a way to improve clarity and ease of sample comparison across numerous articles. The materials in the present study exhibited magnetoelectric behavior at room tem- perature. The highest observed ME coupling coefficient α was about 3.2 mVcm 1 Oe 1 with the largest standard deviation in the experiment of less than 0.2 mVcm 1 Oe 1. The ME coupling exhibited a clear dependence on the synthesis conditions as well as dopant concentration and piezoelectric-magnetostrictive phase ratio. |
