Exchange engineering in 3d chains adsorbed on Cu$_2$N/Cu(001)

TL;DR

This study explores how covalent substrates influence magnetic interactions in 3d atomic chains on Cu$_2$N/Cu(001), revealing the dependence of magnetic configurations on electron filling and adsorption sites.

Contribution

It provides a detailed analysis of magnetic ground states in 3d chains on Cu$_2$N/Cu(001), highlighting the role of substrate chemistry and atomic positioning.

Findings

Magnetic configurations vary with electron filling.

Adsorption site significantly affects magnetic interactions.

Covalent substrates enable diverse magnetic mechanisms.

Abstract

Covalent substrates can give rise to a variety of magnetic interaction mechanisms among adsorbed transition metal atoms building atomic nanostructures. We show this by calculating the ground state magnetic configuration of monoatomic 3d chains deposited on a monolayer of Cu$_2$N grown on Cu(001) as a function of $d$ filling and of adsorption sites of the one dimensional nanostructures.