Enhancement of the effective mass at high magnetic fields in CeRhIn${}_5$

L. Jiao, M. Smidman, Y. Kohama +14

The Kondo-lattice compound CeRhIn${}_5$ displays a field-induced Fermi surface reconstruction at $B^{\ast }\approx 30$ T, which occurs within the antiferromagnetic state, prior to the quant…