dorsal/arxiv
View SchemaMetamaterials for Ballistic Electrons
| Authors | Daniela Dragoman, Mircea Dragoman |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0701012 |
| URL | https://arxiv.org/abs/quant-ph/0701012 |
| DOI | 10.1063/1.2734876 |
Abstract
The paper presents a metamaterial for ballistic electrons, which consists of a quantum barrier formed in a semiconductor with negative effective electron mass. This barrier is the analogue of a metamaterial for electromagnetic waves in media with negative electrical permittivity and magnetic permeability. Besides applications similar to those of optical metamaterials, a nanosized slab of a metamaterial for ballistic electrons, sandwiched between quantum wells of positive effective mass materials, reveals unexpected conduction properties, e.g. single or multiple room temperature negative differential conductance regions at very low voltages and with considerable peak-to-valley ratios, while the traversal time of ballistic electrons can be tuned to larger or smaller values than in the absence of the metamaterial slab. Thus, slow and fast electrons, analogous to slow and fast light, occur in metamaterials for ballistic electrons.
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"abstract": "The paper presents a metamaterial for ballistic electrons, which consists of\na quantum barrier formed in a semiconductor with negative effective electron\nmass. This barrier is the analogue of a metamaterial for electromagnetic waves\nin media with negative electrical permittivity and magnetic permeability.\nBesides applications similar to those of optical metamaterials, a nanosized\nslab of a metamaterial for ballistic electrons, sandwiched between quantum\nwells of positive effective mass materials, reveals unexpected conduction\nproperties, e.g. single or multiple room temperature negative differential\nconductance regions at very low voltages and with considerable peak-to-valley\nratios, while the traversal time of ballistic electrons can be tuned to larger\nor smaller values than in the absence of the metamaterial slab. Thus, slow and\nfast electrons, analogous to slow and fast light, occur in metamaterials for\nballistic electrons.",
"arxiv_id": "quant-ph/0701012",
"authors": [
"Daniela Dragoman",
"Mircea Dragoman"
],
"categories": [
"quant-ph"
],
"doi": "10.1063/1.2734876",
"title": "Metamaterials for Ballistic Electrons",
"url": "https://arxiv.org/abs/quant-ph/0701012"
},
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