2005/06/03 by Phivos Mavropoulos, Marjana Ležaić, Marjana Lezaic +2 · 1 citation
Materials Science · Physics and Astronomy · #2D Materials and Applications #Heusler alloys: electronic and magnetic properties #Iron-based superconductors research #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.72.174428
published as Phys. Rev. B 72, 174428 (2005)
arxiv created 2005/06/03 · openalex publication_date 2005/11/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using theoretical arguments, we show that, in order to exploit half-metallic ferromagnets in tunneling magnetoresistance (TMR) junctions, it is crucial to eliminate interface states at the Fermi level within the half-metallic gap; contrary to this, no such problem arises in giant magnetoresistance elements. Moreover, based on an a priori understanding of the electronic structure, we propose an antiferromagnetically coupled TMR element based on half-metallic zinc-blende chalcogenides, in which interface states are eliminated, as a paradigm of materials design from first principles. Our conclusions are supported by ab initio calculations.