J un 2 01 7 Large positive correlation between the effective electron mass and the multipolar fluctuation in the heavy-fermion metal Ce

D. J. Jang, P. Y. Portnichenko, A. S. Cameron, G. Friemel, A. V. Dukhnenko, N. Y. Shitsevalova, V. B. Filipov, A. Schneidewind, A. Ivanov, D. S. Inosov and M. Brando Max Planck Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany Institut für Festkörperund Materialphysik, TU Dresden, 01069 Dresden, Germany Max Planck Institut für Festköperforschung, 70569 Stuttgart, Germany I. M. Frantsevich Institute for Problems of Materials Science of NAS, 3 Krzhyzhanovsky Street, Kiev 03680, Ukraine Jülich Center for Neutron Science (JCNS), Forschungszentrum Jülich GmbH, Outstation at Heinz Maier – Leibnitz Zentrum (MLZ), Lichtenbergstraße 1, D-85747 Garching, Germany Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble cedex 9, France (Dated: October 15, 2018)