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The dielectric properties of unpoled and poled Pb 0.88 Ba 0.06 Sr 0.06 (Mg 1/3 Nb 2/3 ) 0.37 Zr 0.375 Ti 0.255 O 3 (modified PMN–PZT) ceramics were investigated. It was found that the dielectric constant increased while the loss tangent decreased after poling. A frequency independent abrupt transition in the dielectric constant...
The frequency, electric field cycling and temperature dependences of the polarization–electric field (P–E), strain–electric field (S–E) loops in poled Mn-doped 0.05Pb(Mn 1/3 Sb 2/3 )O 3 –0.50PbZrO 3 –0.45PbTiO 3 ceramics have been investigated. The P–E and S–E loops are strongly asymmetric corresponding to the presence of an internal bias field E i after...
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