Nanowerk  October 27, 2022 With the discovery of nodal-line semimetals, the notion of the Dirac point has been extended to lines and loops in momentum space. However, experimental evidence for the enhanced correlations in nodal-line semimetals is sparse. An international team of researchers (USA -Columbia University, University of Arkansas, Pennsylvania State University, Florida State University, National High Magnetic Field Laboratory, Flatiron Institute, China, the Netherlands, Germany) found prominent correlation effects in a nodal-line semimetal compound, ZrSiSe, through experiments and density functional theory calculations. They observed two fundamental spectroscopic hallmarks of electronic correlations: strong reduction of the free-carrier Drude weight and […]