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Bragg glass signatures in PdxErTe3 with X-ray diffraction temperature clustering

Physics

Bragg glass signatures in PdxErTe3 with X-ray diffraction temperature clustering

K. Mallayya, J. Straquadine, et al.

Unlock the secrets of the elusive Bragg glass phase with groundbreaking findings from Krishnanand Mallayya and colleagues. Using advanced X-ray data and a novel machine-learning analysis tool, this study reveals a diverging correlation length in disordered materials, shedding light on the complex relationship between disorder and fluctuations.

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Playback language: English
Abstract
The Bragg glass phase, a nearly perfect crystal with glassy features, is challenging to detect despite its sharp theoretical definition. This paper presents bulk probe evidence supporting a Bragg glass phase in the disordered charge-density-wave material PdxErTe3 using comprehensive X-ray data and a machine-learning analysis tool (X-TEC). A diverging correlation length is established in moderately intercalated samples over a wide temperature range, enabled by a high-throughput measure of inverse correlation length called "peak spread." This detection advances understanding of the interplay between disorder and fluctuations, and the analysis technique may revolutionize the study of fluctuations in scattering experiments.
Publisher
Nature Physics
Published On
May 01, 2024
Authors
Krishnanand Mallayya, Joshua Straquadine, Matthew J. Krogstad, Maja D. Bachmann, Anisha G. Singh, Raymond Osborn, Stephan Rosenkranz, Ian R. Fisher, Eun-Ah Kim
Tags
Bragg glass
charge-density-wave
X-ray data
machine-learning analysis
correlation length
disorder
fluctuations

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