5–11 Jun 2022
McMaster University
America/Toronto timezone
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Muon Spin Rotation Study of Superconducting CsV3Sb5

6 Jun 2022, 17:15
15m
MDCL 1010 (McMaster University)

MDCL 1010

McMaster University

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) M3-2 Unconventional superconductivity and topology (DCMMP) | Supraconductivité non conventionnelle et topologie (DPMCM)

Speaker

Jonah Gautreau

Description

CsV3Sb5 a member of the recently discovered class of Kagome superconductors AV3Sb5 (A=K, Rb, Cs), which provide a rich environment to study topological band structure and charge density wave (CDW) order in an ideal vanadium Kagome lattice. In this work we performed muon spin rotation/relaxation (uSR) measurements on high-quality single crystal samples in the normal and superconducting states. In our measurement of we find no evidence of broken time reversal symmetry behavior associated with the superconducting state. Our measurements of the magnetic field penetration are well described by a two-gap model. Measurements of the normal state reveal changes to the internal field distribution at the muon site below approximately 60K and 30K, indicating the presence of several changes in the electrodynamics of CsV3Sb5 in addition to its charge density wave and superconducting order.

Primary author

Jonah Gautreau

Co-authors

Graeme Luke (McMaster University) Dr Stephen D. Wilson (University of California, Santa Barbra) Mr Brenden Ortiz (University of California, Santa Barbara ) Kenji Kojima (TRIUMF) Sudarshan Sharma (McMaster University) James Beare (Department of Physics and Astronomy, McMaster University) Mathew Pula (McMaster University) Mr Yipeng Cai (University of British Columbia ) Mr Sungwon Yoon (Triumf)

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