Electronic states in magnetic nanostructures
| Autor: | Gary Mankey, F. J. Himpsel, K. N. Altmann, José Ortega, Dmitri Y. Petrovykh |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Spin polarization Condensed matter physics Fermi level Energy level splitting Fermi surface Giant magnetoresistance Electronic structure Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials symbols.namesake symbols Density of states Condensed Matter::Strongly Correlated Electrons Quantum tunnelling |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 200:456-469 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/s0304-8853(99)00349-2 |
| Popis: | The electronic states responsible for oscillatory magnetic coupling, giant magnetoresistance (GMR), and spin-polarized tunneling are explored. They occupy well-defined locations in ( E, k ) space. Their energy E has to be within a few kT of the Fermi level, a range that is now becoming accessible to high-resolution photoemission. Particular attention is paid to k -regions near the Fermi level crossings of the s, p-band, where a sizable group velocity is combined with a d-like magnetic splitting and spin-polarization. These electronic states can be tailored by quantization in structures with single-digit nanometer dimensions, such as two-dimensional quantum wells and one-dimensional arrays of stripes and dots. Such arrays can be produced by self-assembly on top of stepped silicon surfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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