Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Intrinsic Compositional Inhomogeneities in Bulk Ti-Doped BiFeO3: Microstructure Development and Multiferroic Properties
Year:2013
Research Areas
  • Physics chemical and mathematical,
  • Engineering
Information
Abstract
Ti-doped BiFeO3 ceramics prepared by a mixed-oxide route were structurally characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM), giving evidence of the formation of an inner structure at the nanometric scale. The observed nanograins are separated by Ti-rich areas that originate due to the tendency of the titanium dopant to segregate from the perovskite lattice. Such a peculiar nanostructure is responsible for the changes produced in both the electrical and the magnetic properties of BiFeO3 upon titanium doping: the Ti-rich interfaces act as resistive layers that increase the direct-current (dc) resistivity of the material, while the existence of structural domains in the scale of tens of nanometers causes a ferrimagnetic-like behavior with a huge coercive field (on the order of 20 kOe), even at room temperature.
International
Si
JCR
Si
Title
CHEMISTRY OF MATERIALS
ISBN
0897-4756
Impact factor JCR
8,238
Impact info
Volume
25
10.1021/cm303743h
Journal number
9
From page
1533
To page
1541
Month
SIN MES
Ranking
CHEMISTRY, PHYSICAL 135 9 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY 241 13 Q1
Participants
  • Autor: Maria Beatriz Bernando Maestro (UPM)
  • Autor: TERESA JARDIEL (ICV-CSIC)
  • Autor: Marco Peiteado Lopez (UPM)
  • Autor: F.J. MOMPEAN (ICMM-CSIC)
  • Autor: M. garcía hernandez (icmm-csic)
  • Autor: Marina Villegas Gracia (UPM)
  • Autor: Amador Caballero Cuesta (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones
  • Departamento: Física Aplicada a las Tecnologías de la Información
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)