Published April 23, 2012 | Version v1
Journal article Metadata-only

Local structure around Fe ions on multiferroic Pb(Fe1/2Nb1/2)O3 ceramics probed by x-ray absorption spectroscopy

Creators

  • 1. Grupo de Ceramicas Ferroeletricas, Departamento de Fisica, Universidade Federal de Sao Carlos, Sao Carlos, SP (Brazil)
  • 2. Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Sao Carlos, SP (Brazil)

Description

Local structure around Fe ions on Pb(Fe1/2Nb1/2)O3 ceramics was probed by x-ray absorption spectroscopy in order to settle the controversies about its structure. It is observed that the shell structure around Fe atoms exhibits a monoclinic local symmetry at 130 and 230 K, tetragonal local symmetry at room temperature, and cubic local symmetry at 410 K. Independently of the coordination, temperature, or symmetry, Fe-O mean bond-length does not vary significantly.

Additional details

Identifiers

DOI
10.1063/1.4709490;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
100
Journal Issue
17
Journal Page Range
p. 172907-172907.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43112823
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; BOND LENGTHS; CERAMICS; CRYSTALS; CUBIC LATTICES; FERROELECTRIC MATERIALS; IRON IONS; IRON OXIDES; LEAD COMPOUNDS; MONOCLINIC LATTICES; NIOBATES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; X-RAY SPECTRA; X-RAY SPECTROSCOPY
Descriptors DEC
CHALCOGENIDES; CHARGED PARTICLES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIELECTRIC MATERIALS; DIMENSIONS; IONS; IRON COMPOUNDS; LENGTH; MATERIALS; NIOBIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; SPECTRA; SPECTROSCOPY; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2012 American Institute of Physics