| Zugriffsnummer | 44142 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Effect of background scattering on the magnetoconductance of two-dimensional Lorentz gases |
| Autor(in); Institution |
Horn-Coesfeld, Beate; Heinrich-Heine Universität Düsseldorf, Institut für Festkörperphysik, Düsseldorf, GERMANY
Schluck, Jakob; Heinrich-Heine Universität Düsseldorf, Institut für Festkörperphysik, Düsseldorf, GERMANY
Röben, Andreas; Heinrich-Heine Universität Düsseldorf, Institut für Festkörperphysik, Düsseldorf, GERMANY
Cerchez, Mihai; Heinrich-Heine Universität Düsseldorf, Institut für Festkörperphysik, Düsseldorf, GERMANY
Pierz, Klaus; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Schumacher, Hans Werner; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Mailly, Dominique; CNRS-C2N Université Paris-Sud Saclay, FRANCE
Heinzel, Thomas; Heinrich-Heine Universität Düsseldorf, Institut für Festkörperphysik, Düsseldorf, GERMANY
|
| Quelle/Jahr | Europhysics Letters: 128 (2019), 6, 1 - 6 |
| Artikelnummer | 67004 |
| ISSN | 0295-5075 (PRINT) ; 1286-4854 (ONLINE) |
| DOI | |
| Verlag | Bristol: IOP Publishing |
| Klassifikationscode | PACS: 73.23.-b ; PACS: 72.10.Fk |
| Freie Schlagworte | Electronic transport ; mesoscopic systems ; Scattering |
| Zusammenfassung | The magnetotransport of two-dimensional Lorentz gases is studied in the presence of two types of additional disorder. We observe that at small magnetic fields, dynamic background potentials cause an increase of the conductivity, while it decreases in response to static background potentials, implemented by a secondary Lorentz gas with large mean free path. At intermediate and large magnetic fields, the effect of the additional disorder is independent of its character but changes sign at a threshold magnetic field. The observed phenomenology is interpreted in terms of the influence the background scattering exerts on classical memory effects, in particular on retroreflection, transient superdiffusive motion and E × B drift along the edges of obstacle clusters. |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
Zitierung
Horn-Coesfeld, B., Schluck, J., Röben, A., Cerchez, M., Pierz, K., Schumacher, H. W., Mailly, D., & Heinzel, T. (2019). Effect of background scattering on the magnetoconductance of two-dimensional Lorentz gases. Europhysics Letters, 128(6), 1–6. https://doi.org/10.1209/0295-5075/128/67004