Equilibrium current temperature quasi-oscillations in a ferromagnetic loop

TL;DR

This paper investigates how equilibrium persistent currents in small ferromagnetic loops exhibit quasi-periodic oscillations with temperature, primarily driven by changes in magnetization.

Contribution

It reveals the temperature-dependent quasi-periodic behavior of persistent currents in ferromagnetic loops, highlighting the role of magnetization.

Findings

Persistent currents show quasi-periodic oscillations with temperature.

The quasi-period is mainly determined by magnetization dependence on temperature.

The phenomenon occurs at low temperatures.

Abstract

Equilibrium persistent current carried by a small ferromagnet-metal loop is considered. This current is shown to be quasi periodic in temperature at low temperatures. The quasi period is determined mainly by the temperature dependence of the magnetization.