# Subshell Stability in Superatomic Clusters and the Formation of Stable Magnetic Motifs

## TL;DR

This paper explores how half-filled quantum shells in clusters enhance stability and enable the formation of magnetic nanostructures.

## Contribution

The study introduces the concept of stability from half-filled shells and its role in forming magnetic motifs.

## Key findings

- Half-filled shells in clusters enhance energetic stability.
- Stable subshells with different quantum numbers can form magnetic species.
- This enables tunable magnetic nanoassemblies with controllable coupling and anisotropy.

## Abstract

It is now well established
that the quantum states in symmetric
clusters are grouped into shells and that clusters with filled shells
exhibit enhanced stability. While the stability with filled shells
is established, the corresponding stability associated with half-filled
shells and its role in properties is largely unexplored. In this work,
we first examine the stability due to half-filled shells by considering
a variety of clusters and show that such fillings indeed enhance the
energetic stability. We then demonstrate that such a possibility enables
the formation of magnetic species via stable subshells belonging to
different quantum numbers. The formation of stable magnetic units
with filled subshells opens the door to creating magnetic nanoassemblies
with tunable coupling and magnetic anisotropy.