Absence of local moments in the kagome metal KV3Sb5as determined by muon spin spectroscopy

Eric M Kenney; Brenden R Ortiz; Chennan Wang; Stephen D Wilson; Michael J Graf

doi:10.1088/1361-648X/abe8f9

Absence of local moments in the kagome metal KV₃Sb₅as determined by muon spin spectroscopy

J Phys Condens Matter. 2021 May 10;33(23). doi: 10.1088/1361-648X/abe8f9.

Authors

Eric M Kenney¹, Brenden R Ortiz², Chennan Wang³, Stephen D Wilson², Michael J Graf¹

Affiliations

¹ Department of Physics, Boston College, Chestnut Hill, MA 02467, United States of America.
² Materials Department, University of California Santa Barbara, Santa Barbara, CA 93106-9010, United States of America.
³ Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, 5232 Villigen, Switzerland.

PMID: 33621958
DOI: 10.1088/1361-648X/abe8f9

Abstract

We have carried out muon spin relaxation and rotation measurements on the newly discovered kagome metal KV₃Sb₅, and find a local field dominated by weak magnetic disorder which we associate with the nuclear moments present, and a modest temperature dependence which tracks the bulk magnetic susceptibility. We find no evidence for the existence of V⁴⁺local moments, suggesting that the physics underlying the recently reported giant unconventional anomalous Hall effect in this material warrants further studies.

Keywords: kagome; magnetism; muon spin spectroscopy.