Magnetic Bound States in Dimerized Quantum Spin Systems

TL;DR

This paper investigates magnetic bound states in low-dimensional gapped antiferromagnets, exploring how various factors like exchange topology, dimensionality, defects, and temperature affect their properties through Raman scattering experiments.

Contribution

It provides a detailed analysis of how structural and thermal factors influence magnetic bound states in specific quantum spin systems, advancing understanding of their spectral characteristics.

Findings

Exchange topology significantly affects bound state properties

Dimensionality influences the spectral weight of bound states

Thermal fluctuations modify the spectral features of magnetic bound states

Abstract

Magnetic bound states are a general phenomenon in low dimensional antiferromagnets with gapped singlet states. Using Raman scattering on three compounds as dedicated examples we show how exchange topology, dimensionality, defects and thermal fluctuations influence the properties and the spectral weight of these states.