TITLE

Possible incipient ferroelectricity in Mn-doped Na1/2Bi1/2Cu3Ti4O12

AUTHOR(S)
Ferrarelli, Matthew C.; Sinclair, Derek C.; West, Anthony R.
PUB. DATE
May 2009
SOURCE
Applied Physics Letters;5/25/2009, Vol. 94 Issue 21, p212901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The grain semiconductivity of Na1/2Bi1/2Cu3Ti4O12 ceramics is suppressed by several orders of magnitude by Mn-doping and Na1/2Bi1/2Cu2.82Mn0.18Ti4O12 ceramics exhibit high room temperature relative permittivity, [variant_greek_epsilon]r, ∼140. [variant_greek_epsilon]r data at 100 kHz fit the Barrett equation over the range ∼10–320 K and the magnitude and temperature dependence of [variant_greek_epsilon]r are consistent with incipient ferroelectricity in this compound.
ACCESSION #
40637761

 

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