Dc four-point resistance of a double-barrier quantum pump
We investigate the behavior of the dc voltage drop in a periodically driven double-barrier structure (DBS) sensed by voltages probes that are weakly coupled to the system. We find that the four-terminal resistance R4t measured with the probes located outside the DBS results identical to the resistan...
| Authors: | , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2009 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/60900 |
| Online Access: | http://hdl.handle.net/11336/60900 |
| Access Level: | Open access |
| Keyword: | Theory Quantum Transport https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Summary: | We investigate the behavior of the dc voltage drop in a periodically driven double-barrier structure (DBS) sensed by voltages probes that are weakly coupled to the system. We find that the four-terminal resistance R4t measured with the probes located outside the DBS results identical to the resistance measured in the same structure under a stationary bias voltage difference between left and right reservoirs. This result valid beyond the adiabatic pumping regime can be taken as an indication of the universal character of R4t as a measure of the resistive properties of a sample, irrespectively, of the mechanism used to induce the transport. © 2009 The American Physical Society. |
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