The nature of the collapsed structural transition in valence-fluctuating EuT2P2 (T = Fe, Ru, Co)

DOI

The aim of the proposed experiment is to elucidate the nature of the structural transition into the collapsed tetragonal phase of EuT2P2 (T = Fe, Ru, Co) under pressure at 10, 50 and 300 K. This proposal is motivated by the possibility of a strong coupling of electronic and structural degrees of freedom around the valence transition of Eu-based pnictides. If the valence transition of europium is intertwined with the structural transition into the collapsed tetragonal phase, this would open the way to a new materials class with intriguing coupled electronic and elastic phenomena. To this end, we will study high-quality crystals and follow the large change (~20%) of the c/a ratio of the lattice parameters as function of pressure up to 10 GPa.

Identifier
DOI https://doi.org/10.15151/ESRF-ES-514137917
Metadata Access https://icatplus.esrf.fr/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatplus.esrf.fr:inv/514137917
Provenance
Creator Gaston GARBARINO ORCID logo; Kristin KLIEMT ORCID logo; Amir-Abbas HAGHIGHIRAD ORCID logo; Marius PETERS; Sofia Michaela SOULIOU; Cornelius KRELLNER ORCID logo
Publisher ESRF (European Synchrotron Radiation Facility)
Publication Year 2024
Rights CC-BY-4.0; https://creativecommons.org/licenses/by/4.0
OpenAccess true
Representation
Resource Type Data from large facility measurement; Collection
Discipline Particles, Nuclei and Fields