Evidence for a new magnetic field scale in CeCoIn5
  The Nernst coefficient of CeCoIn5 displays a distinct anomaly at H_K ~ 23 T. This feature is reminiscent of what is observed at 7.8 T in CeRu2Si2, a well-established case of metamagnetic transition. New frequencies are observed in de Haas-van Alphen oscillations when the field exceeds 23 T, which may indicate a modification of the Fermi surface at this field. 
I. Sheikin, H. Jin, R. Bel, K. Behnia, C. Proust, J. Flouquet, Y.   Matsuda, D. Aoki and Y. Onuki