Non linear transport properties of an insulating YBCO nano-bridge

Abstract

We have investigated the transport properties of an insulating sub-micrometric YBa2Cu3O7-d bridge, patterned on a thin film. As expected for a variable-range-hopping insulator, transport is found non linear. The reduced dimension allows for the observation of an individual fluctuator generating random telegraph noise, which dynamics could be explored as a function of the temperature and transport current. Some recordings clearly exhibit three levels fluctuating resistance, with comparable level separation and correlated dynamics, which likely result from the existence of two states or correlated clustered charge traps.

References in corpus (6)

• Quantum critical behaviour in the superfluid density of strongly underdoped ultrathin cuprate films
• Doping dependent charge transfer gap and realistic electronic model of n-type cuprate superconductors
• Electrostatic- and Parallel Magnetic Field- Tuned Two Dimensional Superconductor-Insulator Transitions
• Resistance noise in Bi_2Sr_2CaCu_2O${}_{8+\delta }$
• Non linear transport properties of an insulating YBCO nano-bridge
• Characterizing the insulator adjacent to the superconductor in Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$ ($x=0.3$)

Cited by in corpus (1)

• Non linear transport properties of an insulating YBCO nano-bridge