Order-disorder charge density wave instability in the kagome metal (Cs,Rb)V3Sb5

D. Subires, A. Korshunov, A. H. Said, L. Sánchez, Brenden R. Ortiz, Stephen D. Wilson, A. Bosak and S. Blanco-Canosa ()
Additional contact information
D. Subires: Donostia International Physics Center (DIPC)
A. Korshunov: European Synchrotron Radiation Facility (ESRF)
A. H. Said: Argonne National Laboratory
L. Sánchez: Donostia International Physics Center (DIPC)
Brenden R. Ortiz: university of California Santa Barbara
Stephen D. Wilson: university of California Santa Barbara
A. Bosak: European Synchrotron Radiation Facility (ESRF)
S. Blanco-Canosa: Donostia International Physics Center (DIPC)

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract The origin of the charge density wave phases in the kagome metal compound AV3Sb5 is still under great scrutiny. Here, we combine diffuse and inelastic x-ray scattering to identify a 3-dimensional precursor of the charge order at the L point that condenses into a CDW through a first order phase transition. The quasi-elastic critical scattering indicates that the dominant contribution to the diffuse precursor is the elastic central peak without phonon softening. However, the inelastic spectra show a small broadening of the Einstein-type phonon mode on approaching TCDW. Our results point to the situation where the Fermi surface instability at the L point is of order-disorder type with critical growth of quasi-static domains. The experimental data indicate that the CDW consists on an alternating Star of David and trihexagonal distortions and its dynamics goes beyond the classical weak-coupling scenario and is discussed within strong-electron phonon coupling and non-adiabatic models.

Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-023-36668-w Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36668-w

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-023-36668-w

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().