Influence of image forces on electron transport in ferroelectric tunnel junctions

O. G. Udalov, I. S. Beloborodov
2017 Physical review B  
We study influence of image forces on conductance of ferroelectric tunnel junctions. We show that the influence of image forces is twofold: i) they enhance the electro-resistance effect due to polarization hysteresis in symmetric tunnel junctions at non-zero bias and ii) they produce the electro-resistance effect due to hysteresis of dielectric permittivity of ferroelectric barrier. We study dependence of ferroelectric tunnel junction conductance on temperature and show that image forces lead
more » ... image forces lead to strong conductance variation with temperature.
doi:10.1103/physrevb.95.134106 fatcat:tdknhg5vrfey7d3uebjg2zjfzy