The minority spin surface bands of CoS(2)(001)
| Autor: | Peter A. Dowben, N. Lozova, Ya. B. Losovyj, Wai-Ning Mei, Ning Wu, Michael Manno, Renat Sabirianov, Chris Leighton |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Condensed matter physics Band gap Fermi level Angle-resolved photoemission spectroscopy Condensed Matter Physics Spectral line Brillouin zone symbols.namesake symbols Condensed Matter::Strongly Correlated Electrons General Materials Science Electronic band structure Surface states Spin-½ |
| Zdroj: | Journal of physics. Condensed matter : an Institute of Physics journal. 21(29) |
| ISSN: | 0953-8984 |
| Popis: | Angle-resolved photoemission was used to study the surface electronic band structure of high quality single crystals of ferromagnetic CoS(2) (below 120 K). Strongly dispersing Co t(2g) bands are identified along the ⟨100⟩ [Formula: see text] direction, the [Formula: see text]-[Formula: see text] line of the surface Brillouin zone, in agreement with model calculations. The calculated surface band structure includes corrections for the previously determined surface structure of CoS(2)(001) and is in general agreement with the experimental photoemission spectra in the region of the Fermi level. There is evidence of the existence of several minority spin surface states, falling into a gap of the projected minority spin bulk CoS(2)(001) band structure. |
| Databáze: | OpenAIRE |
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