Modelling the processes of atom structure formation of a superconducting spin valve

TL;DR

This paper models the atomic structure formation in a multilayer superconductor-ferromagnet nanocomposite, crucial for spintronics, using molecular dynamics to analyze layer composition and interface morphology.

Contribution

It introduces a molecular dynamics simulation approach to study the atomic structure formation in multilayer superconducting spin valves.

Findings

Layer formation process characterized under vacuum conditions

Atomic interface morphology analyzed in detail

Simulation results align with experimental expectations

Abstract

The article considers the simulation of the formation of a multilayer nanocomposite, the combination of elements of which gives rise to the effect of a spin valve. The relevance and importance of the effects in the field of spintronics and related materials and devices are described. The composition and atomic structure of individual layers of the multilayer nanocomposite, as well as the composition and morphology of the interface of the nanocomposite layers are the object of research. A sample with a periodic superconductor - ferromagnetic structure consisting of more than 20 alternating layers of niobium and cobalt was analyzed as a sample. The deposition process took place under deep vacuum conditions. Modeling was performed by the molecular dynamics method using the potential of the modified submerged atom method. The formation of the layers was performed in the stacionar mode.