Dispersion Studies of La Substitution on Dielectric Properties of Multiferroic BiFeO{sub 3} Ceramics

Journal Article · Mon Dec 12 04:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3653703· OSTI ID:21612353

Sen, K; Singh, K; Gautam, Ashish; Singh, M ^[1]

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1. Department of Physics, Himachal Pradesh University, Shimla-171005 (India)

Lanthanum (La)-substituted multiferroic Bi{sub 1-x}La{sub x}FeO{sub 3} ceramics with x = 0.0, 0.05, 0.10, 0.15, 0.20 and 0.25 have been prepared by solution combustion method. The effect of La substitution for the dispersion studies on dielectric properties of Bi{sub 1-x}La{sub x}FeO{sub 3} samples have been studied by performing x-ray diffraction (XRD) and dielectric measurements. The results of prepared samples are compared with those of bismuth ferrite (BiFeO{sub 3}). In the measuring frequency of 10 KHz-1 MHz, the dielectric constants and dielectric losses for samples x = 0.20, 0.25 are almost stable and exhibited lowest dielectric loss close to 0.1. The results also shows that stabilization of crystal structure and nonuniformity in spincycloid structure by La substitution enhances the dielectric properties.

• OSTI ID: 21612353
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1393; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH COMPOUNDS
CERAMICS
COHERENT SCATTERING
CONCENTRATION RATIO
CRYSTAL STRUCTURE
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
DIFFRACTION
DIMENSIONLESS NUMBERS
ELECTRICAL PROPERTIES
ENERGY LOSSES
FERRIMAGNETIC MATERIALS
FERRITES
FREQUENCY RANGE
IRON COMPOUNDS
KHZ RANGE
LANTHANUM COMPOUNDS
LOSSES
MAGNETIC MATERIALS
MATERIALS
MHZ RANGE
OXYGEN COMPOUNDS
PERMITTIVITY
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RELAXATION LOSSES
SCATTERING
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION