# Resonant inelastic x-ray scattering of magnetic excitations under pressure

## TL;DR

This paper develops a high-pressure, low-temperature RIXS setup to study magnetic excitations, demonstrated by probing Sr$_3$Ir$_2$O$_7$ at pressures up to 12 GPa, advancing experimental capabilities in magnetic excitation research.

## Contribution

It introduces a novel high-pressure, low-temperature RIXS experimental setup for studying low-energy magnetic excitations.

## Key findings

- Successfully probed magnetic excitations of Sr$_3$Ir$_2$O$_7$ at 12 GPa
- Demonstrated feasibility of high-pressure RIXS measurements
- Enhanced experimental conditions for magnetic excitation studies

## Abstract

Resonant inelastic x-ray scattering (RIXS) is an extremely valuable tool for the study of elementary, including magnetic, excitations in matter. Latest developments of this technique mostly aimed at improving the energy resolution and performing polarization analysis of the scattered radiation, with a great impact on the interpretation and applicability of RIXS. Instead, this article focuses on the sample environment and presents a setup for high-pressure low-temperature RIXS measurements of low-energy excitations. The feasibility of these experiments is proved by probing the magnetic excitations of the bilayer iridate Sr$_3$Ir$_2$O$_7$ at pressures up to 12 GPa.