Publication Date:
2014-02-04
Description:
We report in situ manipulation of the in-plane strain ε x x ( B F M O ) and coercive field E C ( B F M O ) of BiFe 0.95 Mn 0.05 O 3 (BFMO) films epitaxially grown on La 0.7 Sr 0.3 MnO 3 film buffered 0.71Pb(Mg 1/3 Nb 2/3 )O 3 -0.29PbTiO 3 (PMN-PT) substrates. PMN-PT poling-induced strain is effectively transferred to BiFe 0.95 Mn 0.05 O 3 films and enhances ε x x ( B F M O ) and E C ( B F M O ) , with a gauge factor ( Δ E C ( B F M O ) / E C ( B F M O ) ) / ( δ ε x x ) ∼−25 and −326 for the BFMO(001) and BFMO(111) films, respectively. Based on the strain dependence of E C ( B F M O ) , we established a quantitative relationship between E C ( B F M O ) and ε x x ( B F M O ) . Using ferroelastic strain of PMN-PT, we achieved reversible and non-volatile modulation of strain and E C ( B F M O ) of BFMO films, providing an approach for non-volatile and reversible turning of strain and physical properties of ferroelectric films.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics
