Knight shift measurements probing Fermi surface changes under pressure in CeRhIn${}_5$

Y. -H. Nian, C. Chaffey, P. Sherpa +5

We report nuclear magnetic resonance (NMR) Knight shift measurements of the In(1) and In(2) sites in CeRhIn${}_5$ as a function of pressure. In contrast to the $c$ axis, the in-plane…