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Energy dispersion relations for holes inn silicon quantum wells and quantum wires
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mitin, Vladimir Vagidov, Nizami Luisier, Mathieu Klimeck, Gerhard |
| Copyright Year | 2013 |
| Abstract | We calculate the energy dispersion relations in Si quantum wells (QW), E(k2D), and quantum wires (QWR), E(k1D), focusing on the regions with negative effective mass (NEM) in the valence band. The existence of such NEM regions is a necessary condition for the current oscillations in ballistic quasineutral plasma in semiconductor structures. The frequency range of such oscillations can be extended to the terahertz region by scaling down the length of structures. Our analysis shows that silicon is a promising material for prospective NEM-based terahertz wave generators. We also found that comparing to Si QWRs, Si QWs are preferable structures for NEM-based generation in the terahertz range. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1103&context=nanodocs |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Frequency band Image scaling International System of Units NEM (cryptocurrency) Plasma Active Prospective search Quantum well Quantum wire Semiconductor Silicon Terahertz Test scaling Water Wells |
| Content Type | Text |
| Resource Type | Article |
