| Autor: |
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 |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Materials Research Express, Vol 7, Iss 1, p 015918 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2053-1591 |
| DOI: |
10.1088/2053-1591/ab688b |
| Popis: |
Charge carriers parameters on a 2D-layer surface for (Cd _1−x−y Zn _x Mn _y ) _3 As _2 ( y = 0.08) (the concentration ${n}_{2D}$ = 1.9 × 10 ^12 cm ^–2 , the effective value of the 2D-layer ${d}_{2D}={n}_{2D}/{n}_{3D}$ = 14.5 nm, the wave vector ${k}_{F}$ = 0.1 nm ^–1 , the charge carriers relaxation time due to dispersion ${\tau }_{D}$ = 1.8 × 10 ^–13 s, the velocity of charge carriers on Fermi surface ${v}_{F}=\hslash {k}_{F}/{m}_{c}$ = 2.6 ^5 × 10 ^5 m s ^−1 , the mean free path ${l}_{F}={v}_{F}{\tau }_{D}$ = 47.7 nm) were determined. It was found that the dependence of the cyclotron m ass m _с (0)/m _0 on Fermi wave vector k _F for (Cd _1−x−y Zn _x Mn _y ) _3 As _2 ( y = 0.08) is in compliance with a theoretical linear dependence, that describes mass-less Dirac fermions. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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