Szczegóły publikacji
Opis bibliograficzny
Magnetoresistive properties of nanocomposites based on ferrite nanoparticles and polythiophene / Roma WIRECKA, Krzysztof MAĆKOSZ, Antoni ŻYWCZAK, Mateusz Marek MARZEC, Szczepan ZAPOTOCZNY, Andrzej BERNASIK // Nanomaterials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2079-4991. — 2023 — vol. 13 iss. 5 art. no. 879, s. 1–10. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 9–10, Abstr. — Publikacja dostępna online od: 2023-02-26. — R. Wirecka, K. Maćkosz, A. Bernasik - dod. afiliacja: ACMiN AGH; K. Maćkosz - dod. afiliacja: Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland; S. Zapotoczny - dod. afiliacja: Jagiellonian University
Autorzy (6)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 145481 |
|---|---|
| Data dodania do BaDAP | 2023-03-09 |
| Tekst źródłowy | URL |
| DOI | 10.3390/nano13050879 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Nanomaterials |
Abstract
In the presented study, we have synthesized six nanocomposites based on various magnetic nanoparticles and a conducting polymer, poly(3-hexylthiophene-2,5-diyl) (P3HT). Nanoparticles were either coated with squalene and dodecanoic acid or with P3HT. The cores of the nanoparticles were made of one of three different ferrites: nickel ferrite, cobalt ferrite, or magnetite. All synthesized nanoparticles had average diameters below 10 nm, with magnetic saturation at 300 K varying between 20 to 80 emu/g, depending on the used material. Different magnetic fillers allowed for exploring their impact on the conducting properties of the materials, and most importantly, allowed for studying the influence of the shell on the final electromagnetic properties of the nanocomposite. The conduction mechanism was well defined with the help of the variable range hopping model, and a possible mechanism of electrical conduction was proposed. Finally, the observed negative magnetoresistance of up to 5.5% at 180 K, and up to 1.6% at room temperature, was measured and discussed. Thoroughly described results show the role of the interface in the complex materials, as well as clarify room for improvement of the well-known magnetoelectric materials.