Method of dynamic resonance tuning in spintronics of nanosystems

TL;DR

The paper introduces a rapid, tunable resonance method for controlling magnetization in nanosystems, with potential applications in spintronic memory devices and nanoscale magnetic systems.

Contribution

It presents a novel dynamic resonance tuning technique using feedback fields and adjustable magnetic fields for fast magnetization regulation in nanosystems.

Findings

Enables fast regulation of magnetization direction.

Applicable to various magnetic nanosystems including nanomolecules and nanoclusters.

Potential for use in spintronic memory devices.

Abstract

A method is advanced allowing for fast regulation of magnetization direction in magnetic nanosystems. The examples of such systems are polarized nanostructures, magnetic nanomolecules, magnetic nanoclusters, magnetic graphene, dipolar and spinor trapped atoms, and quantum dots. The emphasis in the paper is on magnetic nanomolecules and nanoclusters. The method is based on two principal contrivances: First, the magnetic sample is placed inside a coil of a resonant electric circuit creating a feedback field, and second, there is an external magnetic field that can be varied so that to dynamically support the resonance between the Zeeman frequency of the sample and the natural frequency of the circuit during the motion of the sample magnetization. This method can find applications in the production of memory devices and other spintronic appliances.