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Spin-polarized Shockley state at Ni(111) free surface and at Ni-Cu–based structures on Cu(111) surface
Spin-polarized Shockley state at Ni(111) free surface and at Ni-Cu–based structures on Cu(111) surface
- Source :
- EPL-Europhysics Letters, EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2004, 67 (1), pp.90-95. ⟨10.1209/epl/i2004-10036-6⟩
- Publication Year :
- 2004
- Publisher :
- IOP Publishing, 2004.
-
Abstract
- The electronic structure of Cu(111) and Ni(111) free surfaces and of Ni-Cu structures on the Cu (111) surface is studied from ab initio calculations. Systems ending on a Ni layer are found to be magnetic. The spin splitting of the Ni d band raises the position of some minority Ni dxz,yz states which then lie in the energy range where the Shockley state should appear. This results in a strong sp-d hybridization of the spin-down components which furthermore depends on the k momentum. As a result, the Shockley state of Ni-terminated surfaces is spin polarized. The ab initio results are compared to recent STM experiments.
- Subjects :
- Range (particle radiation)
Materials science
Quantitative Biology::Neurons and Cognition
Condensed matter physics
Ab initio
General Physics and Astronomy
02 engineering and technology
Electronic structure
021001 nanoscience & nanotechnology
01 natural sciences
7. Clean energy
Momentum
Condensed Matter::Materials Science
D band
Ab initio quantum chemistry methods
Free surface
0103 physical sciences
[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]
010306 general physics
0210 nano-technology
Spin (physics)
ComputingMilieux_MISCELLANEOUS
Subjects
Details
- ISSN :
- 12864854 and 02955075
- Volume :
- 67
- Database :
- OpenAIRE
- Journal :
- Europhysics Letters (EPL)
- Accession number :
- edsair.doi.dedup.....4b7d1d450ea624b5ce953182dc711072
- Full Text :
- https://doi.org/10.1209/epl/i2004-10036-6