Biografia de J.-L.

Relativistic spin-polarized calculation of the electronic structure of antiferromagnetic chromium

“…As shown for ferromagnetic Ni and Fe, taking into account the spin polarization together with the relativistic effccts results in complete removal of degeneracy. For antiferromagnetic Cr, because of the invariance of equation (3) under scquential operations of time inversion and translation by the vector ( u / Z ) ( l , 1,1), each state remains doubly degenerate. The general group theoretical considerations of symmetry in relativistic ma&netics were reported in [19].…”

“…The INTO method with the Barth-Hedin exchange-correlation potential [SI was used in [4]. The same potential was chosen in [3], but the functional constants were taken according to Janak [9] (calculations were carried out by the LASW method [lo]). As a result, the characteristic dimensions of the clectron spectrum in [3] are somewhat greater than in [4], the general structure of the spectrum being the same.…”

“…The same potential was chosen in [3], but the functional constants were taken according to Janak [9] (calculations were carried out by the LASW method [lo]). As a result, the characteristic dimensions of the clectron spectrum in [3] are somewhat greater than in [4], the general structure of the spectrum being the same. Also, Kubler [3] estimated the total energy and the equilibrium value of the lattice constant which proved to be slightly smaller than the experimental value.…”