Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00266 : Structural and Dielectric Study of (Dy,Er,Ho)CrO$_{3}$ Biferroic Compounds
Author:
Technological progress, especially in electronic applications,
demands
increasingly advanced substances, capable of performing a variety
of tasks
while simultaneously occupying less space than their
predecessors. An answer
to this demand lies within the realm of multiferroics. Multiferroic
materials are defined as those single phase compounds where more
than one
ferroic order coexists; they generally belong to the perovskite
group. One
manifestation of multiferroicity, magnetoelectricity, requires the
coexistence of spontaneous electric polarization and magnetic
ordering. It
is for this reason that rare-earth chromites have been selected
as suitable
candidates. This work is concerned with synthesis,
characterization and
dielectric response of the DyCrO$_{3}$, ErCrO$_{3}$ and
HoCrO$_{3}$ ceramic
compounds. The samples were synthesized by both the traditional
solid state
ceramic method, and the self-propagating combustion method. The
resultant
chromites were characterized by TG, DTA and XRD, which confirms
the Pbnm
space group. Additionally, conductivity analysis was performed
and the
associated activation energy determined for each system using
experimental
values and Arrhenius law.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.266
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