Poole-Frenkel effect and Variable-Range Hopping conduction in metal / YBCO resistive switching devices

Alejandro Schulman, Leandro F. Lanosa, Carlos Acha

Current-voltage (IV) characteristics and the temperature dependence of the contact resistance [$R(T)$] of Au / YBa${}_2$Cu${}_3$O${}_{7-\delta }$ (optimally doped YBCO) interfaces have been st…