High pressure phonon spectroscopy at ESRF: ID28 beamline

ABSTRACT

The ID28 beamline (ESRF) hosts the only inelastic x-ray scattering spectrometer in Europe and is devoted to the study of phonons. As part of a rich portfolio of user activities high-pressure research represents a vital segment of the beamline’s research portfolio, constituting approximately 30% of allocated beamtime, with users benefiting from both the extreme brightness and tight focusing capabilities of the European synchrotron. Here we present the current status of lattice dynamics studies under (quasi)hydrostatic pressure which have become close-to-routine measurements, detail a selection of example studies and briefly discuss potential future advances.

KEYWORDS:

• Inelastic x-ray scattering
• lattice dynamics
• phonons
• high pressures

Acknowledgments

The authors acknowledge fruitful discussions and collaborations with Agnes Dewaele, Arianna Minelli, Artem Korshunov, Daniele Antonangeli, Filippo Bencivenga, Luigi Paolasini, Matthieu Le Tacon, Maxime Leroux, Michael Krisch, Pierre Rodiere, Roman Burkovsky, Santiago Blanco-Canosa, Sofia-Michaela Souliou, Stefan Klotz, Volodymyr Svitlyk. The authors are especially grateful to Jeroen Jacobs and Gaston Garbarino, from ESRF for the invaluable help with high-pressure equipment.

Disclosure statement

No potential conflict of interest was reported by the authors.