Influence of Disorder on Superconducting Correlations in Nanoparticles
| Autor: | François M. Peeters, Milorad V. Milošević, Vollrath M. Axt, Andrey S. Vasenko, A. A. Shanenko, Mikhail D. Croitoru, Alexei Vagov |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Superconductivity Condensed matter physics Scattering Nanoparticle 02 engineering and technology Electron 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Grain size Electronic Optical and Magnetic Materials Renormalization Metal Quantum dot visual_art 0103 physical sciences visual_art.visual_art_medium 010306 general physics 0210 nano-technology |
| Zdroj: | Journal of superconductivity and novel magnetism |
| ISSN: | 1557-1947 1557-1939 |
| Popis: | We investigate how the interplay of quantum confinement and level broadening caused by disorder affects superconducting correlations in ultra-small metallic grains. We use the electron-phonon interaction-induced electron mass renormalization and the reduced static-path approximation of the BCS formalism to calculate the critical temperature as a function of the grain size. We show how the strong electron-impurity scattering additionally smears the peak structure in the electronic density of states of a metallic grain and imposes additional limits on the critical temperature under strong quantum confinement. |
| Databáze: | OpenAIRE |
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