Temporary behavior of 'persistent' current in normal rings

TL;DR

This paper investigates transient currents in normal conducting rings during the transition to equilibrium after a magnetic field change, aligning theoretical predictions with experimental magnetization observations.

Contribution

It demonstrates that temporary currents in normal rings are consistent with experimental magnetization data, providing insight into non-equilibrium electron behavior.

Findings

Transient currents occur during the system's approach to equilibrium.

These currents are consistent with experimental magnetization measurements.

No persistent current exists in the new equilibrium state.

Abstract

In equilibrium, the number of conduction electrons in a solid substance depends on the conformation of the atoms in the substance. When a magnetic field is applied, it takes time for the system to come to a new equilibrium with a new conformation. During such times, current may flow. But, unless superconduction is involved, the new equilibrium contains no current. It is shown that the transitory currents are consistent with experiments involving magnetization of small rings at low temperatures.