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Transport evidence of mass-less Dirac fermions in (Cd1−x−yZnxMny)3As2 (x + y = 0.4)

Year: 2020
Type: article
Abstract: Charge carriers parameters on a 2D-layer surface for (Cd1−x−yZnxMny)3As2 (y = 0.08) (the concentration n 2 D = 1.9 × 1012 cm–2, the effective value of the 2D-layer d 2 D = n 2 D / n 3 D = 14.5 nm, the wave vector k F = 0.1 nm–1, the charge carriers relaxation time due to dispersion τ D = 1.8 × 10–13 s, the velocity of charge carriers on Fermi surface v F = ℏ k F / m c = 2.65 × 105 m s−1, the mean free path l F = v F τ D = 47.7 nm) were determined. It was found that the dependence of the cyclotron mass m с (0)/m0 on Fermi wave vector k F for (Cd1−x−yZnxMny)3As2 (y = 0.08) is in compliance with a theoretical linear dependence, that describes mass-less Dirac fermions.
DOI: 10.1088/2053-1591/ab688b
Authors: V S Zakhvalinskii, T B Nikulicheva, E A Pilyuk, E Lähderanta, M A Shakhov, O N Ivanov, E P Kochura, A V Kochura, B A Aronzon
Institutions: Belgorod National Research University, Lappeenranta-Lahti University of Technology, Ioffe Institute, Belgorod State Technological University, South-West State University, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Russian Academy of Sciences
Language: English
Open Access status: gold
Estimated APC paid: $2,000
OpenAlex ID: W2999717023
FWCI: 0.312
Cites: 18
Cited by: 6
Related to: 10