Molecular spintronics using noncollinear magnetic molecules

TL;DR

This paper explores how noncollinear magnetic molecules can be used in molecular spintronics to control spin transport, switch magnetic states, and generate toroidal magnetization, advancing nanoscale magnetic device technology.

Contribution

It demonstrates the potential of noncollinear magnetic molecules as spin-switching devices and methods to manipulate their magnetic states using spin currents.

Findings

Noncollinear magnetization acts as a spin switch.

Spin currents can prepare magnetic states selectively.

Spin currents induce toroidal magnetization in Dy_3 molecules.

Abstract

We investigate the spin transport through strongly anisotropic noncollinear magnetic molecules and find that the noncollinear magnetization acts as a spin-switching device for the current. Moreover, spin currents are shown to offer a viable route to selectively prepare the molecular device in one of two degenerate noncollinear magnetic states. Spin-currents can be also used to create a non-zero density of toroidal magnetization in a recently characterized Dy_3 noncollinear magnet.