Electrodes controlling phase diagrams of symmetric ferroelectric tunneling junctions or capacitors

Electrodes controlling the misfit strain-temperature phase diagrams of symmetric ferroelectric tunneling junctions or capacitors have been investigated. Taking into account effect of the imperfect charge screening in electrodes, it is found that the phase diagrams can be significantly shifted with changing coefficients of electrodes. Results about the dielectric constants also indicate promising controllability of other properties for ferroelectric tunnel junction or capacitor by adjusting electrodes. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3591163]