Physica. E, Low-dimensional systems & nanostructures, 2007-10, Vol.40 (1), p.12-24
2007
Details
- Autor(en) / Beteiligte
- Titel
- Electron coherence at low temperatures: The role of magnetic impurities
- Ist Teil von
- Physica. E, Low-dimensional systems & nanostructures, 2007-10, Vol.40 (1), p.12-24
- Ort / Verlag
- Amsterdam: Elsevier B.V
- Erscheinungsjahr
- 2007
- Link zum Volltext
- Quelle
- Access via ScienceDirect (Elsevier)
- Beschreibungen/Notizen
- We review recent experimental progress on the saturation problem in metallic quantum wires. In particular, we address the influence of magnetic impurities on the electron phase coherence time. We also present new measurements of the phase coherence time in ultra-clean gold and silver wires and analyse the saturation of τ φ in these samples, cognizant of the role of magnetic scattering. For the cleanest samples, Kondo temperatures below 1 mK and extremely small magnetic-impurity concentration levels of less than 0.08 ppm have to be assumed to attribute the observed saturation to the presence of magnetic impurities.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1386-9477eISSN: 1873-1759DOI: 10.1016/j.physe.2007.05.026Titel-ID: cdi_hal_primary_oai_HAL_ensl_00179758v1
- Format
- –
- Schlagworte
- Condensed Matter, Condensed matter: electronic structure, electrical, magnetic, and optical properties, Decoherence, Disorder, Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures, Electronic transport in multilayers, nanoscale materials and structures, Electron–electron interactions, Exact sciences and technology, Localization effects (anderson or weak localization), Mesoscopic Systems and Quantum Hall Effect, Physics, Surface and interface electron states, Weak localization