@article { ISI:000232005200011,
	title = {Half-metallic alloys: electronic structure, magnetism and spin polarization},
	journal = {JOURNAL OF ELECTRON MICROSCOPY},
	volume = {54},
	number = {1},
	year = {2005},
	note = {International Symposium on Creation of Novel Nanomaterials, Osaka Univ, Osaka, JAPAN, JAN 20-22, 2004},
	month = {SEP},
	pages = {I52-I55},
	abstract = {Using the state-of-the-art screened Korringa-Kohn-Rostoker Green function method we study the electronic and magnetic properties of NiMnSb and similar Heusler alloys. We show that all these compounds are half-metals, e.g. the minority-spin band is semiconducting and the Fermi level falls within this gap resulting in 100\% spin polarization at the Fermi level. The total spin moment M-t shows the so-called Slater-Pauling behaviour and scales with the total valence charge Z(t) following the rule M-t = Z(t) - 18 for half and M-t = Z(t) - 24 for full Heusler alloys. These rules are connected to the origin of the gap. Finally we show that the inclusion of the spin-orbit interaction in our calculations kills the half-metallic gap but the spin-polarization at the Fermi level can be still very high, similar to 99\% for NiMnSb, but much lower for a half-metallic compound like zinc-blende MnBi (77\%).},
	issn = {0022-0744},
	doi = {10.1093/jmicro/dfi007},
	author = {P.H. Dederichs and Galanakis, I. and P. Mavropoulos}
}
