title: Nonquasiparticle states in Co2MnSi evidenced through magnetic tunnel junction spectroscopy measurements.
abstract: We investigate the effects of electronic correlations in the full-Heusler Co2MnSi, by combining a theoretical analysis of the spin-resolved density of states with tunneling-conductance spectroscopy measurements using Co2MnSi as electrode. Both experimental and theoretical results confirm the existence of so-called nonquasiparticle states and their crucial contribution to the finite-temperature spin polarization in this material.
authors: Institute of Theoretical Physics, Graz University of Technology, A-8010 Graz, Austria.
authors: L
authors: L
authors: Chioncel
authors: Y
authors: Y
authors: Sakuraba
authors: E
authors: E
authors: Arrigoni
authors: M I
authors: MI
authors: Katsnelson
authors: M
authors: M
authors: Oogane
authors: Y
authors: Y
authors: Ando
authors: T
authors: T
authors: Miyazaki
authors: E
authors: E
authors: Burzo
authors: A I
authors: AI
authors: Lichtenstein