| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Teppe, Frederic
French National Centre for Scientific Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022Relativistic collapse of Landau levels of Kane fermions in crossed electric and magnetic fieldscitations
- 2019Massless Dirac fermions in III-V semiconductor quantum wellscitations
- 2019Magneto-transport in inverted HgTe quantum wellscitations
- 2015Terahertz studies of 2D and 3D topological transitions
- 2013Far infrared response of silicon nanowire arrayscitations
- 2010Silicon versus III-V semiconductor material choice for terahertz imaging with nanometerfield effect transistors based detectors
- 2006Spontaneous magnetization patterning in diluted paramagnetic semiconductors : theory and experiment - art. no. 611802
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article
Relativistic collapse of Landau levels of Kane fermions in crossed electric and magnetic fields
Abstract
Using an elegant model involving only Γ6c and Γ8v bands, massless Kane fermions were defined as the particles associated with the peculiar band structure of gapless HgCdTe crystals. Although their dispersion relation resembles that of a pseudo-spin-1 Dirac semimetal, these particles were originally considered to be hybrids of pseudospin-1 and -1/2 fermions. Here we unequivocally find that, by considering an additional Γ7c conduction band inherent in HgCdTe crystals, the Kane fermions are ultimately two nested Dirac particles. This observation allows for the direct application of Lorentz transformations to describe the relativistic behavior of these particles in crossed electric and magnetic fields. By studying the relativistic collapse of their Landau levels at different orientations between the crossed fields and the main crystallographic axes, we demonstrate that the Kane fermions strikingly decay into two independent Dirac particles with increase of the electric field. Our results provide insight into semirelativistic effects in narrow-gap semiconductors in crossed electric and magnetic fields.