Oscillating Solitons Pinned to a Nonmagnetic Impurity in Layered Antiferromagnets

TL;DR

This paper predicts that impurity-pinned solitons in layered antiferromagnets can oscillate, with frequencies that depend on their size and type, and could be observed via resonance or neutron scattering.

Contribution

It introduces the concept of oscillatory impurity-pinned solitons in layered antiferromagnets and analytically estimates their characteristic frequencies.

Findings

Oscillatory motion of impurity-pinned solitons is theoretically possible.

Characteristic frequencies depend on soliton size and type.

Potential detection via resonance or inelastic neutron scattering.

Abstract

We argue that an oscillatory motion of impurity-pinned solitons may occur in layered antiferromagnetic compounds. The characteristic frequencies of these modes, that may be detected by resonance or inelastic neutron scattering, are estimated analytically and depend on the soliton sizes and types .