Orbital Magnetism in Small Quantum Dots with Closed Shells

TL;DR

This paper investigates how shell structures at specific magnetic fields cause the orbital magnetization to vanish in small quantum dots with fewer than 30 electrons, revealing unique magnetic behaviors tied to electron configurations.

Contribution

It uncovers the relationship between shell structures and the suppression of orbital magnetization in small quantum dots, highlighting new magnetic phenomena at certain electron counts.

Findings

Orbital magnetization disappears at specific magnetic fields.

Shell structures influence magnetic properties of quantum dots.

Magnetization behavior depends on electron number and shell configuration.

Abstract

It is found that various kind of shell structure which occurs at specific values of the magnetic field leads to the disappearance of the orbital magnetization for particular magic numbers of small quantum dots with an electron number $A < 30$.