Electrical and Optical Properties of Unrelaxed InAs1 –xSbx Heteroepitaxial Structures
- Authors: Guseynov R.R.1, Tanriverdiyev V.A.1, Belenky G.L.2, Kipshidze G.2, Aliyeva Y.N.1, Aliguliyeva K.V.1, Alizade E.G.1, Ahmadova K.N.1, Abdullayev N.A.1, Mamedov N.T.1, Zverev V.N.3
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Affiliations:
- Institute of Physics, National Academy of Sciences of Azerbaijan
- Stony Brook University
- Institute of Solid State Physics, Russian Academy of Sciences
- Issue: Vol 53, No 7 (2019)
- Pages: 906-910
- Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/206477
- DOI: https://doi.org/10.1134/S1063782619070091
- ID: 206477
Cite item
Abstract
The electrical and galvanomagnetic properties of unrelaxed heteroepitaxial InAs1 –xSbx structures (x = 0.43 and 0.38) in a wide temperature range of 5–300 K and magnetic fields up to 8 T are studied. From the thermal-activation dependence of the electrical conductivity, the band gap of the composition InAs0.57Sb0.43 is estimated as 120 meV. The electron concentration in InAs1 –xSbx (6 × 1016 cm–3 for InAs0.62Sb0.38 and 5 × 1016 cm–3 for InAs0.57Sb0.43) determined from the Hall effect agrees well with the electron concentration calculated from the Shubnikov–de-Haas oscillations. We also carry out the spectral ellipsometric studies of unrelaxed heteroepitaxial structures of InAs1 –xSbx (x = 0.43 and 0.38) in the photon energy range of 1–6 eV. The spectral dependences of the imaginary and real parts of the dielectric constant are determined. The dispersion dependences of the refractive index and the extinction coefficient are calculated and presented.
About the authors
R. R. Guseynov
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
V. A. Tanriverdiyev
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
G. L. Belenky
Stony Brook University
Email: abnadir@mail.ru
United States, Stony Brook, N.Y., 11794
G. Kipshidze
Stony Brook University
Email: abnadir@mail.ru
United States, Stony Brook, N.Y., 11794
Y. N. Aliyeva
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
Kh. V. Aliguliyeva
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
E. G. Alizade
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
Kh. N. Ahmadova
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
N. A. Abdullayev
Institute of Physics, National Academy of Sciences of Azerbaijan
Author for correspondence.
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
N. T. Mamedov
Institute of Physics, National Academy of Sciences of Azerbaijan
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
V. N. Zverev
Institute of Solid State Physics, Russian Academy of Sciences
Email: abnadir@mail.ru
Russian Federation, Chernogolovka, 142432