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The Density of States of the Two Dimensional Electron Gas in InAs/AlSb Quantum Well

Received: 24 November 2017     Accepted: 6 December 2017     Published: 11 January 2018
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Abstract

It is considered the possibility of determining the density of states of the two-dimensional electron gas as a function of total concentration ns on the basis of some experimental data. For this purpose it is used the known value of the effective mass at the Fermi level from the cyclotron resonance measurements and the number of quantized levels located below the Fermi level from the measurements of the Shubnikov-de Haas. The obtained density of states is compared with model calculation that takes into account the non-parabolic conduction band. The experimental data and model calculations correspond to the hetero structured quantum well InAs/AlSb with width of 15nm.

Published in American Journal of Physics and Applications (Volume 6, Issue 1)
DOI 10.11648/j.ajpa.20180601.14
Page(s) 18-21
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Quantum Well, Kane Model, Subband Dispersion, InAs/AlSb Hetero Structure, Two-Dimensional Electron Gas, Density of States, Effective Mass

References
[1] Shik, A. Y., Bakueva, L. G., Musikhin, S. F. and Rykov, S. A. (2001) Fizika nizkorazmernih system. SPb, Nauka, 160p. (in Russian).
[2] M. J. Yang, P. J. Lin-Chung, R. J. Wagner, J. R. Waterman, W. J. Moore, B. V. Shanabrook. Far-infrared spectroscopy in strained AlSb/InAs/AlSb quantum wells. Semicond. Sci. Technol. 8, S129 (1993) [DOI:10.1088/0268-1242/8/1S/029].
[3] C. Gauer, J. Scriba, A. Wixforth, J. P. Kotthaus, C. R. Bolognesi, C. Nguyen, B. Brar, H. Kroemer. Energy-dependent cyclotron mass in InAs/AlSb quantum wells. Semicond. Sci. Technol. 9, 1580 (1994) [DOI:10.1088/0268-1242/9/9/002].
[4] R. J. Warburton, C. Gauer, A. Wixforth, J. P. Kotthaus, B. Brar, H. Kroemer. Intersubband resonances in InAs/AlSb quantum wells: Selection rules, matrix elements, and the depolarization field. Phys. Rev. B53, 7903(1996) [DOI:10.1103/PhysRevB.53.7903].
[5] V. Ya. Aleshkin, V. I. Gavrilenko, A. V. Ikonnikov, Yu. G. Sadofyev, J. P. Bird, S. R. Jonhson, Y. -H. Zhang. A cyclotrone resonance in both doped and non-doped InAs/AlSb heterostructures with quantum wells. Fiz. Tekh. Poluprovodn. 39, 71-75(2005) (in Russian).
[6] I. V. Kukushkin, S. V. Meshkov, and V. B. Timofeev, “Two-dimensional electron density of states in a transverse magnetic field,” Soviet Physics Uspekhi, vol. 31, no. 6, pp. 511–534, 1988. (in Russian).
[7] V. Ya. Aleshkin, N. A. Bekin, M. N. Buyanova, B. N. Zvonkov, A. V. Murel. Investigation of the electron density of states in quantum wells and quantum dot arrays by C−V method. Fiz. Tekh. Poluprovodn. 33, 1246-1252 (1999) (in Russian).
[8] N. V. Pavlov, G. G. Zegrya. Optical properties of hetero structures with deep quantum wells AlSb/InAs0.86Sb0.14/AlSb. Fiz. Tekh. Poluprovodn. 48, 1217-1227 (2014) (in Russian).
[9] N. V. Pavlov, G. G. Zegrya. Influence of electrons and light holes energy spectrum nonparabolicity on optical properties of hetero structures with deep quantum wells AlSb/InAs0.86Sb0.14/AlSb. Fiz. Tekh. Poluprovodn. 49, 617-627 (2015) (in Russian).
[10] Abdulazizov B. T., Baymatov P. J. The International Symposium “New Tendencies of Developing Fundamental and Applied Physics: Problems, Achievements, Prospectives”. November 10-11, 2016, Tashkent, Uzbekistan. PP. 76-77. http://www.ips2016.uz.
[11] P. J. Baymatov, B. T. Abdulazizov. Concentration dependences of the electron effective mass, Fermi energy, and filling of subbands in doped InAs/AlSb quantum wells. Ukr. J. Phys. Vol. 62, No. 1, 46–50 (2017) [DOI:10.15407/ujpe62.01.0046].
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    Baymatov Paziljon Jamoldinovich, Bahrom Toshmirza O’g’li Abdulazizov. (2018). The Density of States of the Two Dimensional Electron Gas in InAs/AlSb Quantum Well. American Journal of Physics and Applications, 6(1), 18-21. https://doi.org/10.11648/j.ajpa.20180601.14

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    ACS Style

    Baymatov Paziljon Jamoldinovich; Bahrom Toshmirza O’g’li Abdulazizov. The Density of States of the Two Dimensional Electron Gas in InAs/AlSb Quantum Well. Am. J. Phys. Appl. 2018, 6(1), 18-21. doi: 10.11648/j.ajpa.20180601.14

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    AMA Style

    Baymatov Paziljon Jamoldinovich, Bahrom Toshmirza O’g’li Abdulazizov. The Density of States of the Two Dimensional Electron Gas in InAs/AlSb Quantum Well. Am J Phys Appl. 2018;6(1):18-21. doi: 10.11648/j.ajpa.20180601.14

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  • @article{10.11648/j.ajpa.20180601.14,
      author = {Baymatov Paziljon Jamoldinovich and Bahrom Toshmirza O’g’li Abdulazizov},
      title = {The Density of States of the Two Dimensional Electron Gas in InAs/AlSb Quantum Well},
      journal = {American Journal of Physics and Applications},
      volume = {6},
      number = {1},
      pages = {18-21},
      doi = {10.11648/j.ajpa.20180601.14},
      url = {https://doi.org/10.11648/j.ajpa.20180601.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20180601.14},
      abstract = {It is considered the possibility of determining the density of states of the two-dimensional electron gas as a function of total concentration ns on the basis of some experimental data. For this purpose it is used the known value of the effective mass at the Fermi level from the cyclotron resonance measurements and the number of quantized levels located below the Fermi level from the measurements of the Shubnikov-de Haas. The obtained density of states is compared with model calculation that takes into account the non-parabolic conduction band. The experimental data and model calculations correspond to the hetero structured quantum well InAs/AlSb with width of 15nm.},
     year = {2018}
    }
    

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    AB  - It is considered the possibility of determining the density of states of the two-dimensional electron gas as a function of total concentration ns on the basis of some experimental data. For this purpose it is used the known value of the effective mass at the Fermi level from the cyclotron resonance measurements and the number of quantized levels located below the Fermi level from the measurements of the Shubnikov-de Haas. The obtained density of states is compared with model calculation that takes into account the non-parabolic conduction band. The experimental data and model calculations correspond to the hetero structured quantum well InAs/AlSb with width of 15nm.
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Author Information
  • Department of Physics, Namangan State University, Namangan, Republic of Uzbekistan

  • Department of Physics, Namangan State University, Namangan, Republic of Uzbekistan

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