Electron transport through mesoscopic rings: Evidence of nano-scale rectifiers
✍ Scribed by Santanu K. Maiti
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 515 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0038-1098
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✦ Synopsis
We investigate electronic transport through mesoscopic rings and propose how such rings can be used to design nano-scale rectifiers. A single mesoscopic ring is used for half-wave rectification, while full-wave rectification is achieved by means of two such rings, and in both cases each ring is threaded by a time varying Aharonov-Bohm (AB) flux φ which plays a central role in the rectification action. Within a tightbinding framework, all the calculations are done based on the Green's function formalism. We present numerical results for the two-terminal conductance and current which support the general features of half-wave and full-wave rectifications. Our analysis may be inspiring in designing mesoscopic or nanoscale rectifiers.