Year: 2019
Type: article
Abstract: In this work we show the size-dependent ferromagnetic behavior of undoped and Mn-doped PZN-4.5PT single crystals, consequently their multiferroic one. Undoped single crystals were tamisized and three different sizes powders were investigated showing a size dependence in such ferroelectric materials while no magnetism is observed for the non-oriented and oriented bulk single crystals. The results show the existence of an optimized grain sizes range ( ) in which the magnetism is the highest (around 0.08 emu/g). It is found that the maximum value of the relative strain decreases from 0.25% for undoped crystals to 0.20% for Mn-doped ones. The remanent magnetization and coercivity ( ) were found equal, respectively, to and 63 Oe for undoped and, and 66 Oe for Mn-doped PZN-4.5PT indicating that PZN-4.5PT particles possessed weak ferromagnetic behavior. Mn doping increases highly the spontaneous magnetization from to , respectively for undoped and Mn-doped nanoparticles.
Source: Europhysics Letters (EPL)
Institutions: Ziguinchor University, Inserm, Université Sorbonne Paris Nord, Sorbonne Paris Cité, Laboratoire de Recherche Vasculaire Translationnelle, Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques, Institut National des Sciences Appliquées de Lyon, University of Belgrade, Vinča Institute of Nuclear Sciences, European Synchrotron Radiation Facility
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2953407682