dorsal/arxiv
View SchemaThe role of the buildup oscillations on the speed of resonant tunneling diodes
| Authors | Roberto Romo, Jorge Villavicencio |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0210012 |
| URL | https://arxiv.org/abs/quant-ph/0210012 |
| DOI | 10.1063/1.1354164 |
| Journal | Appl. Phys. Lett. 78, 1769 (2001) |
Abstract
The fastest tunneling response in double barrier resonant structures is investigated by considering explicit analytic solutions of the time dependent Schr\"{o}dinger equation. For cutoff initial plane waves, we find that the earliest tunneling events consist on the emission of a series of propagating pulses of the probability density governed by the buildup oscillations in the quantum well. We show that the fastest tunneling response comes from the contribution of incident carriers at energies different from resonance, and that its relevant time scale is given by $\tau_r=\pi \hbar /| E-\epsilon | $, where $\epsilon $ is the resonance energy and $E$ is the incidence energy.
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"abstract": "The fastest tunneling response in double barrier resonant structures is\ninvestigated by considering explicit analytic solutions of the time dependent\nSchr\\\"{o}dinger equation. For cutoff initial plane waves, we find that the\nearliest tunneling events consist on the emission of a series of propagating\npulses of the probability density governed by the buildup oscillations in the\nquantum well. We show that the fastest tunneling response comes from the\ncontribution of incident carriers at energies different from resonance, and\nthat its relevant time scale is given by $\\tau_r=\\pi \\hbar /| E-\\epsilon | $,\nwhere $\\epsilon $ is the resonance energy and $E$ is the incidence energy.",
"arxiv_id": "quant-ph/0210012",
"authors": [
"Roberto Romo",
"Jorge Villavicencio"
],
"categories": [
"quant-ph"
],
"doi": "10.1063/1.1354164",
"journal_ref": "Appl. Phys. Lett. 78, 1769 (2001)",
"title": "The role of the buildup oscillations on the speed of resonant tunneling diodes",
"url": "https://arxiv.org/abs/quant-ph/0210012"
},
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