This title appears in the Scientific Report :
2004
Please use the identifier:
http://hdl.handle.net/2128/1572 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.69.054424 in citations.
Effect of the spin-orbit interaction on the band gap of half metals
Effect of the spin-orbit interaction on the band gap of half metals
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 calculat...
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Personal Name(s): | Mavropoulos, Ph. |
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Sato, K. / Zeller, R. / Dederichs, P. H. / Popescu, V. / Ebert, H. | |
Contributing Institute: |
Center of Nanoelectronic Systems for Information Technology; CNI Theorie III; IFF-TH-III |
Published in: | Physical Review B Physical review / B, 69 69 (2004 2004) 5 5, S. 054424 054424 |
Imprint: |
College Park, Md.
APS
2004
|
Physical Description: |
054424 |
DOI: |
10.1103/PhysRevB.69.054424 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review B
69 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.69.054424 in citations.
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. |