Josef Zwanziger
The relationship between the Berry connection and orbital magnetism: First principles calculation of magnetic shielding
The modern theory of orbital magnetism as developed by Vanderbilt, Resta, Niu, and colleagues depends on the curvature of the Berry connection in the Brillouin zone of a solid. We describe this relationship, and show how we have used this approach to develop a practical implementation of the computation of magnetic shielding as measured in nuclear magnetic resonance spectroscopy.
