TITLE

Observation of saturated polarization and dielectric anomaly in magnetoelectric BiFeO[sub 3] thin films

AUTHOR(S)
Palkar, V. R.; John, J.; Pinto, R.
PUB. DATE
March 2002
SOURCE
Applied Physics Letters;3/4/2002, Vol. 80 Issue 9, p1628
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report here synthesis of phase-pure magnetoelectric BiFeO[sub 3] thin films with controlled oxygen stoichiometry on Pt/TiO[sub 2]/SiO[sub 2]/Si substrate using pulsed-laser deposition technique. Saturated ferroelectric hysteresis loop has been observed in phase-pure and highly resistive BiFeO[sub 3] thin films. The dielectric response study of the films with temperature indicates an anomaly in dielectric constant ∈(T), in the vicinity of N@el temperature (∼380 °C). This anomaly in ∈(T) is explained as an influence of vanishing magnetic ordering on electric ordering of magnetoelectric BiFeO[sub 3] sample.
ACCESSION #
6220549

 

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