Energy scale of Dirac electrons in Cd3As2
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HAKL, Michael, TCHOUMAKOV, Serguei, CRASSEE, Iris, AKRAP, Ana, PIOT, Benjamin A., FAUGERAS, Clement, MARTINEZ, Gerardo G., NATEPROV, Alexander, ARUSHANOV, Ernest, TEPPE, Fréd́eric, SANKAR, Raman, LEE, Weili. Energy scale of Dirac electrons in Cd3As2. In: Physical Review B, 2018, vol. 97, p. 0. ISSN 2469-9950. DOI: https://doi.org/10.1103/PhysRevB.97.115206
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Physical Review B
Volumul 97 / 2018 / ISSN 2469-9950 /ISSNe 2469-9969

Energy scale of Dirac electrons in Cd3As2

DOI:https://doi.org/10.1103/PhysRevB.97.115206

Pag. 0-0

Hakl Michael1, Tchoumakov Serguei, Crassee Iris2, Akrap Ana3, Piot Benjamin A.2, Faugeras Clement2, Martinez Gerardo G.2, Nateprov Alexander4, Arushanov Ernest4, Teppe Fréd́eric5, Sankar Raman6, Lee Weili6
 
1 LNCMI, CNRS-UJF-UPS-INSA, Grenoble and Toulouse,
2 LNCMI, CNRS-UGA-UPS-INSA-EMFL, Grenoble,
3 University of Geneva,
4 Institute of Applied Physics, Academy of Sciences of Moldova,
5 University of Montpellier,
6 Academia Sinica, Taiwan
 
 
Disponibil în IBN: 8 mai 2018


Rezumat

Cadmium arsenide (Cd3As2) has recently became conspicuous in solid-state physics due to several reports proposing that it hosts a pair of symmetry-protected 3D Dirac cones. Despite vast investigations, a solid experimental insight into the band structure of this material is still missing. Here we fill one of the existing gaps in our understanding of Cd3As2, and based on our Landau-level spectroscopy study, we provide an estimate for the energy scale of 3D Dirac electrons in this system. We find that the appearance of such charge carriers is limited - contrary to a widespread belief in the solid-state community - to a relatively small energy scale (below 40 meV).

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