Oscillation of Pauli Paramagnetism in Rotating Two-Component Fermionic Atom Gases

TL;DR

This paper investigates how rotating two-component fermionic atom gases exhibit oscillations in magnetic moment due to effective magnetic fields, revealing a distinct oscillatory behavior from traditional de Haas-van Alphen effects.

Contribution

It introduces a novel analysis of magnetic oscillations in rotating atomic gases, highlighting differences from conventional electron-based magnetic phenomena.

Findings

Magnetic moment oscillates with magnetic field due to rotation-induced effective magnetic field.

Oscillation pattern differs from de Haas-van Alphen effect because atomic orbital motion couples only to rotation.

Atomic charge neutrality prevents orbital motion from contributing to magnetic moment.

Abstract

By rotating two-component fermionic atom gases in uniform magnetic field, a similar physical situation with de Haas-van Alphen effect is constructed. We calculate magnetic moment of the system and find that owing to an existence of effective magnetic field coming from the rotation, the magnetic moment also shows the oscillatory behavior about magnetic field, but it is completely different from the famous oscillation of de Haas-van Alphen effect. This distinction is due to that in the atomic gases the orbital motion of atom only couples to rotation and does not contribute to magnetic moment in the light of atomic charge neutrality.