Structure magnétique des pérovskites inverses de type A3BC : Étude ab-initio

Abstract

The structural materials perovskite were and are always the subject of many studies. This particular structural type arouses the interest of the physicists of the solid because of the remarkable properties frequently observed in these compounds (superconducting at high temperature, giant magneto-resistance, etc…).Among the great material diversity of this family, these systems often showed complex properties electronic and magnetic particularly significant for the comprehension of the phenomena still badly explained. Our research relates mainly to The compounds with anti-perovskite structural of type RE3InC (RE = rare earth : Pr, Dy and Tm).With an aim of understanding the effects of incorporation of the atoms rare earths on the various physical properties, one will use a method ab-initio which is the method of the plane waves increased linearized with total potential (FP-LAPW) within the framework of the of the density functional theory (DFT) implemented in the WIEN2k code.