Dynamical decoding of the competition between charge density waves in a kagome superconductor.

ABSTRACT: The kagome superconductor CsV₃Sb₅ hosts a variety of charge density wave (CDW) phases, which play a fundamental role in the formation of other exotic electronic instabilities. However, identifying the precise structure of these CDW phases and their intricate relationships remain the subject of intense debate, due to the lack of static probes that can distinguish the CDW phases with identical spatial periodicity. Here, we unveil the out-of-equilibrium competition between two coexisting 2 × 2 × 2 CDWs in CsV₃Sb₅ harnessing time-resolved X-ray diffraction. By analyzing the light-induced changes in the intensity of CDW superlattice peaks, we demonstrate the presence of both phases, each displaying a significantly different amount of melting upon exci

SUBMITTER: Ning H 

PROVIDER: S-EPMC11343738 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature