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A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...

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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Aging effect in ceramic superconductors.

M S Li¹, P Nordblad, H Kawamura

¹Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland.

Physical Review Letters

|February 15, 2001

Summary

This summary is machine-generated.

Aging phenomena in ceramic superconductors are eliminated under strong screening conditions. Weak screening allows aging even at low temperatures, while intermediate screening shows temperature-dependent aging behavior. These findings align well with experimental observations.

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Area of Science:

Condensed Matter Physics
Materials Science

Background:

Ceramic superconductors exhibit complex behaviors, including aging phenomena.
Understanding the influence of self-conductance and screening on these behaviors is crucial.

Purpose of the Study:

To model ceramic superconductors using a 3D lattice of Josephson junctions.
To investigate the impact of self-conductance and screening on aging phenomena.

Main Methods:

Utilized Monte Carlo simulations to model a 3D lattice of Josephson junctions.
Analyzed aging behavior across different screening regimes (weak, intermediate, strong).

Main Results:

Aging disappears in the strong screening limit.
Aging persists at low temperatures in the weak screening regime.
Intermediate self-inductance leads to aging in an intermediate temperature range, suppressed at extremes.

Conclusions:

The study demonstrates the critical role of screening and self-inductance in determining aging phenomena in ceramic superconductors.
Simulation results show good agreement with experimental data, validating the model.