Mechanisms of Electrical Conductivity in Y(1-x)CaxBa2Cu3O6.1 System
P. Starowicz, A. Szytula
TL;DR
This study investigates the transport mechanisms in deoxygenated Y(1-x)CaxBa2Cu3O6.1, revealing a temperature-dependent transition from variable range hopping to superconductivity-related conductivity, suggesting a universal behavior among similar cuprates.
Contribution
The paper proposes a comprehensive diagram of conductivity mechanisms in the Y(1-x)CaxBa2Cu3O6.1 system, highlighting temperature-dependent regimes and potential universality among high-Tc cuprates.
Findings
VRH dominates at intermediate temperatures
Conductivity proportional to √T near superconductivity
Thermally activated conductivity at high temperatures
Abstract
Systematic studies of transport properties in deoxygenated Y(1-x)CaxBa2Cu3O6.1 series allowed to propose a diagram of conductivity mechanisms for this system. At intermediate temperature a variable range hopping (VRH) in 2 dimensions prevails. At lower temperature VRH in the presence of a Coulomb gap for smaller x and VRH in 2 dimensions for larger x are found. In a vicinity of superconductivity we observe conductivity proportional to \sqrt{T}. Thermally activated conductivity dominates at higher temperature. This diagram may be universal for the whole family of undoped high Tc related cuprates.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.