Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition.

K, Glazyrin; LV, Pourovskii; L, Dubrovinsky; O, Narygina; C, McCammon; B, Hewener; V, Schünemann; J, Wolny; K, Muffler; AI, Chumakov; W, Crichton; M, Hanfland; VB, Prakapenka; F, Tasnádi; M, Ekholm; M, Aichhorn; V, Vildosola; AV, Ruban; MI, Katsnelson; IA, Abrikosov

doi:10.1103/physrevlett.110.117206

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Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition.

Shared by NobleBlocks on Mar 12, 2013 • 12:00 AM UTC

Authors:

Glazyrin K

Pourovskii LV

Dubrovinsky L

Abstract

We discover that hcp phases of Fe and Fe(0.9)Ni(0.1) undergo an electronic topological transition at pressures of about 40 GPa. This topological change of the Fermi surface manifests itself through anomalous behavior of the Debye sound velocity, c/a lattice parameter ratio, and Mössbauer center shif...

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