Higher-than-ballistic conduction of viscous electron flows
Abstract
Free electron flows through constrictions in metals are often regarded as an ultimate high-conduction charge transfer. We predict that electron fluids can flow with a resistance that is much smaller than the fundamental quantum mechanical ballistic limit for nanoscale electronics. The “superballistic” low-dissipation transport is particularly striking for the flow through a viscous point contact, a constriction exhibiting the quantum mechanical ballistic transport at zero temperature but governed by viscous electron hydrodynamics at a higher temperature. Unlike other mechanisms of low-dissipation transport, for example, superconductivity, the viscous electron flows can be realized at elevated temperatures, granting a new route for the low-power electronics research.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 06, 2017
- Source ID
- 10.1073/pnas.1612181114
Entities
People
- Ekin Ilseven
- Gregory Falkovich
- Haoyu Guo
- Leonid Levitov
Organizations
- Army Research Office
- Israel Science Foundation
- Massachusetts Institute of Technology
- National Science Foundation
- Russian Science Foundation
- The Institute for Information Transmission Problems of Russian Academy of Sciences
- Weizmann Institute of Science