| Autor: |
Lev V. Ginzburg, Carolin Gold, Marc P. Röösli, Christian Reichl, Matthias Berl, Werner Wegscheider, Thomas Ihn, Klaus Ensslin |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 3, Iss 2, p 023033 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.3.023033 |
| Popis: |
We measure electronic transport through point contacts in a high-mobility electron gas in a Ga[Al]As heterostructure at different temperatures and bulk electron densities. The conductance through all point contacts increases with increasing temperature in a temperature window around T∼10K for all investigated electron densities and point contact widths. For high electron densities this conductance exceeds the fundamental ballistic limit (Sharvin limit). These observations are in agreement with a viscous electron transport model and previous experiments in graphene. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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