Importance of Correlation Effects in hcp Iron Revealed by a Pressure-Induced Electronic Topological Transition

K. Glazyrin, Leonid Pourovskii, L. Dubrovinsky, O. Narygina, C. McCammon, B. Hewener, V. Schünemann, J. Wolny, K. Muffler, A.I. Chumakov, W. Crichton, M. Hanfland, V.B. Prakapenka, F. Tasnadi, M. Eckholm, Markus Aichhorn, Veronica Vildosola, A.V. Ruban, M.I. Katsnelson, I.A. Abrikosov