Anomalous cyclotron mass dependence on the magnetic field and Berry’s phase in (Cd1−x−y Zn x Mn y )3As2 solid solutions
| Autor: | S V Taran, M. A. Shakhov, T. B. Nikulicheva, Erkki Lähderanta, E A Nikitovskaya, V S Zakhvalinskii |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Condensed matter physics Magnetoresistance Chemistry Cyclotron Analytical chemistry Magnetic semiconductor Atmospheric temperature range Condensed Matter Physics 01 natural sciences Fourier transform ion cyclotron resonance law.invention Magnetic field law 0103 physical sciences General Materials Science 010306 general physics Ion cyclotron resonance Solid solution |
| Zdroj: | Journal of Physics: Condensed Matter. 29:455701 |
| ISSN: | 1361-648X 0953-8984 |
| DOI: | 10.1088/1361-648x/aa8bdb |
| Popis: | Shubnikov-de Haas (SdH) effect and magnetoresistance measurements of single crystals of diluted II-V magnetic semiconductors (Cd1-x-y Zn x Mn y )3As2 (x + y = 0.4, y = 0.04 and 0.08) are investigated in the temperature range T = 4.2 ÷ 300 K and in transverse magnetic field B = 0 ÷ 25 T. The values of the cyclotron mass m c, the effective g-factor g*, and the Dingle temperature T D are defined. In one of the samples (y = 0.04) a strong dependence of the cyclotron mass on the magnetic field m c(B) = m c(0) + αB is observed. The value of a phase shift close to β = 0.5 indicates the presence of Berry phase and 3D Dirac fermions in a single crystals of (Cd1-x-y Zn x Mn y )3As2 in one of the samples (y = 0.08). |
| Databáze: | OpenAIRE |
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