Orbital paramagnetism without density of states enhancement in
nodal-line semimetal ZrSiS
Orbital paramagnetism without density of states enhancement in
nodal-line semimetal ZrSiS
Unconventional orbital paramagnetism without enhancement of the density of states was recently discovered in the nodal-line semimetal ZrSiS. Here, we propose a novel interband mechanism of orbital paramagnetism associated with the negative curvature of energy dispersions, which successfully explains the observed anomalous orbital paramagnetism. This negative curvature arises from energy …