Suppressed Auger scattering and tunable light emission of Landau-quantized massless Kane electrons
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10401060" target="_blank" >RIV/00216208:11320/19:10401060 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=EVAZ1ZK38a" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=EVAZ1ZK38a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41566-019-0496-1" target="_blank" >10.1038/s41566-019-0496-1</a>
Alternative languages
Result language
angličtina
Original language name
Suppressed Auger scattering and tunable light emission of Landau-quantized massless Kane electrons
Original language description
The Landau level laser was proposed long ago as a unique source of monochromatic radiation that would be widely tunable in the THz and infrared spectral ranges using a magnetic field. However, despite many efforts, this appealing concept never progressed to the design of a reliable device. This is because of the efficient Auger scattering of Landau-quantized electrons, an intrinsic non-radiative recombination channel that eventually gains over cyclotron emission in all materials studied so far (conventional semiconductors with parabolic bands, but also in graphene with massless electrons). Auger processes are favoured in these systems because the Landau levels (or their subsets) are equally spaced in energy. Here, we show that this scheme does not apply to massless Kane electrons in gapless HgCdTe, where undesirable Auger scattering is strongly suppressed and sizeable cyclotron emission is observed. The gapless HgCdTe thus appears as a material of choice for future Landau level lasers.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Photonics
ISSN
1749-4885
e-ISSN
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Volume of the periodical
13
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
783-788
UT code for WoS article
000493317900014
EID of the result in the Scopus database
2-s2.0-85070802821