<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. Mavropoulos</style></author><author><style face="normal" font="default" size="100%">Sato, K.</style></author><author><style face="normal" font="default" size="100%">R. Zeller</style></author><author><style face="normal" font="default" size="100%">P.H. Dederichs</style></author><author><style face="normal" font="default" size="100%">Popescu, V</style></author><author><style face="normal" font="default" size="100%">Ebert, H</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of the spin-orbit interaction on the band gap of half metals</style></title><secondary-title><style face="normal" font="default" size="100%">PHYSICAL REVIEW B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2004</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">054424</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The spin-orbit interaction can cause a nonvanishing density of states (DOS) within the minority-spin band gap of half metals around the Fermi level. We examine the magnitude of the effect in Heusler alloys, zinc-blende half metals, and diluted magnetic semiconductors, using first-principles calculations. We find that the ratio of spin-down to spin-up DOS at the Fermi level can range from below 1% (e.g., 0.5% for NiMnSb) over several percents {[}4.2% for (Ga,Mn)As] to 13% for MnBi. This gives a spin polarization P at E-F ranging from above 99% for NiMnSb to Papproximate to92% for (Ga,Mn)As and to Papproximate to77% for MnBi.</style></abstract></record></records></xml>