Tunneling Electroresistance Effect in Ferroelectric Tunnel Junctions at the Nanoscale
Tunneling Electroresistance Effect in Ferroelectric Tunnel Junctions at the Nanoscale
Using a set of scanning probe microscopy techniques, we demonstrate the reproducible tunneling electroresistance effect on nanometer-thick epitaxial BaTiO3 single-crystalline thin films on SrRuO3 bottom electrodes. Correlation between ferroelectric and electronic transport properties is established by direct nanoscale visualization and control of polarization and tunneling current. The obtained results show …