|
This article is cited in 9 scientific papers (total in 9 papers)
Surface, interfaces, thin films
Quantum corrections and magnetotransport in 3D Dirac semimetal Cd$_{3-x}$Mn$_{x}$As$_{2}$ films
A. B. Mejiaa, A. A. Kazakova, L. N. Oveshnikovab, A. B. Davydova, A. I. Rilc, S. F. Marenkincd, B. A. Aronzona a P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
b National Research Centre "Kurchatov Institute", Moscow
c Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow
d National University of Science and Technology «MISIS», Moscow
Abstract:
Thin films of solid solutions based on the three-dimensional Dirac semimetal Cd$_3$As$_2$ with the addition of manganese are investigated. Cd$_{3-x}$Mn$_{x}$As$_{2}$ films ($x$ = 0, 0.05, and 0.1) 50–70 nm in thickness are formed on a glassceramic substrate using vacuum-thermal deposition from cadmium arsenide ingots doped by Mn and fabricated by direct alloying elements by the vacuum-cell method. The temperature and magnetic-field dependences of the resistance are measured and the transport parameters of the films under study are determined. Positive magnetoresistance of the characteristic shape corresponding to the contribution of the weak antilocalization effect is observed for films with $x$ = 0 and 0.05. The contribution from the weak localization effect is observed at a higher Mn content ($x$ = 0.1). This change in the quantum correction type as applied to topological semimetals points to reconstruction of the band structure and transition from the Dirac semimetal state into a trivial semiconductor phase, which corresponds to the critical Mn content $x_{c}\sim$ 0.07 in this case.
Keywords:
glassceramic substrates, vacuum-thermal deposition, antilocalization.
Received: 23.05.2019 Revised: 30.05.2019 Accepted: 30.05.2019
Citation:
A. B. Mejia, A. A. Kazakov, L. N. Oveshnikov, A. B. Davydov, A. I. Ril, S. F. Marenkin, B. A. Aronzon, “Quantum corrections and magnetotransport in 3D Dirac semimetal Cd$_{3-x}$Mn$_{x}$As$_{2}$ films”, Fizika i Tekhnika Poluprovodnikov, 53:11 (2019), 1479–1484; Semiconductors, 53:11 (2019), 1439–1444
Linking options:
https://www.mathnet.ru/eng/phts5352 https://www.mathnet.ru/eng/phts/v53/i11/p1479
|
Statistics & downloads: |
Abstract page: | 47 | Full-text PDF : | 10 |
|