Spin Elasticity:A New Paradigm for Spintronics

TL;DR

This paper introduces the concept of spin elasticity, linking spin torque to spin morphology, revealing topological properties, oscillations, and new collective excitations, thereby expanding the framework of spintronics.

Contribution

It presents a unified tau-D theory connecting classical elasticity with topological spin physics, pioneering a new paradigm called spinelastronics.

Findings

Discovery of spin stress waves as a new class of excitations

Identification of a topological Hooke's law in spin systems

Prediction of spontaneous oscillations and resonance in spin elasticity

Abstract

Elasticity shapes our world. For centuries, it has been regarded as a property exclusive to ordinary matter. Here we uncover its hidden existence in the spin degree of freedom. We introduce spin elasticity-a framework linking spin torque to spin morpgology. This reveals a topological Hooke's law, uncovers spontaneous oscillations and resonance, and predicts a new class of collective excitations:spin stress waves. By establishing a unfied tau-D theory bridging classical elasticity and topological spin physics, this work completes the elastic picture and opens a new frontier for spintronics-spinelastronics.