Persistent flat band splitting and strong selective band renormalization in a kagome magnet thin film.

ABSTRACT: Magnetic kagome materials provide a fascinating playground for exploring the interplay of magnetism, correlation and topology. Many magnetic kagome systems have been reported including the binary Fe_mX_n (X = Sn, Ge; m:n = 3:1, 3:2, 1:1) family and the rare earth RMn₆Sn₆ (R = rare earth) family, where their kagome flat bands are calculated to be near the Fermi level in the paramagnetic phase. While partially filling a kagome flat band is predicted to give rise to a Stoner-type ferromagnetism, experimental visualization of the magnetic splitting across the ordering temperature has not been reported for any of these systems due to the high ordering temperatures, hence leaving the nature of magnetism in kagome magnets an open question. Here, we probe

SUBMITTER: Ren Z 

PROVIDER: S-EPMC11526111 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature