Brillouin-Mandelstam Light Scattering Spectroscopy: Applications in Phononics and Spintronics

TL;DR

Brillouin-Mandelstam light scattering spectroscopy has become a vital tool for investigating phonons and magnons in advanced materials and devices, offering insights into phononic and spintronic phenomena with recent technological advancements.

Contribution

This paper provides a comprehensive overview of recent developments and applications of Brillouin-Mandelstam spectroscopy in phononics and spintronics, highlighting emerging uses and future prospects.

Findings

Enhanced understanding of confined acoustic phonons

Applications in phononic metamaterials and spintronic devices

Future directions for spectroscopy techniques

Abstract

Recent years witnessed much broader use of Brillouin inelastic light scattering spectroscopy for the investigation of phonons and magnons in novel materials, nanostructures, and devices. Driven by developments in instrumentation and the strong need for accurate knowledge of energies of elemental excitations, the Brillouin - Mandelstam spectroscopy is rapidly becoming an essential technique, complementary to the Raman inelastic light scattering spectroscopy. We provide an overview of recent progress in the Brillouin light scattering technique, focusing on the use of this photonic method for the investigation of confined acoustic phonons, phononic metamaterials, magnon propagation and scattering. The Review emphasizes emerging applications of the Brillouin - Mandelstam spectroscopy for phonon engineered structures and spintronic devices and concludes with a perspective for future directions.