Dielectric behaviour and magnetoelectric effect in copper–cobalt ferrite+barium lead titanate composites

Autor:	M. B. Kothale, A. V. Rao, K. K. Patankar, B.K. Chougule, Vikas L. Mathe, S.L. Kadam
Rok vydání:	2003
Předmět:	Permittivity Materials science Magnetoelectric effect Dielectric Condensed Matter Physics Polaron Ferroelectricity chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Ferrite (magnet) General Materials Science Lead titanate Ceramic Composite material
Zdroj:	Materials Chemistry and Physics. 77:691-696
ISSN:	0254-0584
DOI:	10.1016/s0254-0584(02)00135-9
Popis:	ME composites of Cu0.6Co0.4Fe2O4+Ba0.8Pb0.2TiO3 were prepared using a conventional ceramic double sintering process. The presence of phases was confirmed by X-ray diffraction (XRD). The variation of dielectric constant (e′) in the frequency range 100 Hz–1 MHz and also with temperature at constant frequency was studied. The conduction phenomenon is explained on the basis of small polaron hopping model. The confirmation of this phenomenon is made with the help of AC conductivity measurements. The static value of magnetoelectric conversion factor that is dc(ME)H was studied as a function of intensity of the magnetic field. The maximum value of ME coefficient was observed for 15% ferrite+85% ferroelectric phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::09d7ef44e451767ca60d251b1349c738 https://doi.org/10.1016/s0254-0584(02)00135-9 Zobrazit plný text záznamu Full Text from ScienceDirect