1997/05/09 by M. A. Korotin, V. I. Anisimov, В. И. Анисимов +2 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Heusler alloys: electronic and magnetic properties #Magnetic and transport properties of perovskites and related materials #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.80.4305
published as Phys. Rev. Lett. 80 N19 (1998) pp.4305-4308. · 4 pages, 4 Figures
arxiv created 1997/05/09 · openalex publication_date 1998/05/11 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Band structure calculations of CrO2 carried out in the LSDA+U approach reveal a clear picture of the physics behind the metallic ferromagnetic properties. Arguments are presented that the metallic ferromagnetic oxide CrO2 belongs to a class of materials in which magnetic ordering exists due to double exchange (in this respect CrO2 turns out to be similar to the CMR manganates). It is concluded that CrO2 has small or even negative charge transfer gap which can result in self-doping. Certain experiments to check the proposed picture are suggested.