Transport and fermiology of the ferromagnetic phase of (A = Ca, Sr, Ba)

摘要: Abstract A virtual crystal treatment of the electronic structure ferromagnetic La 2 3 1 MnO (A = Ca, Sr, Ba) within local density approximation is carried out to study properties this system in low temperature or high field regime where it and highly conducting. Neglecting disorder effects, alloy nearly half-metallic, with two large majority spin Fermi surfaces (sphere cube) small minority associated energy 0.15 eV. Estimates lead conclusion that carriers will lie below mobility edge, giving effectively half-metallic character material. Electronic anomalies tendencies toward instabilities arising from nesting perfect cube surface are presented discussed.