Lattice Symmetry Breaking and Ascending in Magnetic Kagome Metal
April 26, 2024
Scientific Achievement
Larmor diffraction and Raman spectroscopy measurements show that the kagome metal FeGe exhibits unusual lattice symmetry breaking and ascending on cooling.
Significance and Impact
Ultra high momentum resolution Larmor diffraction measurements provide new avenue to understand the interplay between spin, lattice, and charge degrees of freedom.
Research Details
•P3-type Na2/3Cu1/3Mn2/3O2 structure was determined by combining high resolution neutron diffraction, X-ray diffraction, neutron pair distribution function and transmission electron microscope.
•In-situ hard X-ray absorption and ex-situ soft X-ray absorption spectrum, along with density function theory calculations, reveal two distinct charge compensation mechanisms at different voltage plateaus.
Symmetry Breaking and Ascending in the Magnetic Kagome Metal FeGe
Phys. Rev. X 14, 011043 (2024).
doi:10.1103/PhysRevX.14.011043