Previous Article
Hall-effect anomalies near the quantum critical point in CeCu6−xAux
The results of Hall-effect and resistance measurements on the substitutional solid solutions CeCu6−xAux with concentrations 0x0.3, corresponding to a wide neighborhood of the quantum critical po...
Next Article
Hall effect and magnetic ordering in RB12
The concentration of carriers in LuB12 is evaluated theoretically by applying ab initio FP-LMTO calculations. Theoretical results are found to be in agreement with high-precision measurements of the H...

Evolution and collapse of quasistationary states of an electron in planar symmetric three-barrier resonance-tunneling structures

Low Temp. Phys. 35, 556 (2009); doi:10.1063/1.3170931

Issue Date: July 2009

You are not logged in to this journal. Log in

N. V. Tkach and Yu. A. Seti
Yu. Fed'kovich Chernovitskii National University, ul. Kotsyubinskogo 2, Chernovtsy 58012, Ukraine
A theory of the evolution and collapse of pairs of resonances because of a change in the strength (thickness) of the inner barrier is developed in a model of effective masses and symmetric, square, potential barriers for an electron in a planar three-barrier structure. Analytical and numerical calculations of the spectral parameters (resonance energies and widths) are performed by the transmission coefficient and probability distribution function method using the transfer and S matrices. It is shown that the collapse of the resonance energies and widths of all quasistationary states in a symmetric three-barrier structure occurs for practically the same thicknesses of the inner barriers, somewhat greater than the total thickness of the outer barriers. It is established that with respect to the square-barrier model the delta model overestimates the resonance energies by 10% and the resonance widths by almost a factor of 2. ©2009 American Institute of Physics
History: Submitted 11 March 2009
Permalink: http://link.aip.org/link/?LTPHEG/35/556/1
BUY THIS ARTICLE   (US$29)
Download PDF (1065 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 73.21.-b
    Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems
  • YEAR: 2009

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
1063-777X (print)   1090-6517 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (27)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. I. V. Tokatly, A. G. Tsibizov, and A. A. Gorbatsevich, Phys. Rev. B 65, 165328 (2002).
  2. V. F. Elesin and Yu. V. Kopaev, Zh. Eksp. Teor. Fiz. 123, 1308 (2003).
  3. E. I. Golant and A. B. Pashkovskii, Fiz. Tekh. Poluprovodn. 36, 330 (2002).
  4. M. Tkach, V. Holovatsky, and O. Voitsekhivska, Photonics Spectra 11, 17 (2001).
  5. N. Tkach, A. Makhanets, and G. Zegrya, Fiz. Tekh. Poluprovodn. 36, 543 (2002).
  6. N. Tkach and A. Makhanets, Fiz. Tverd. Tela (St. Petersburg) 47, 550 (2005).
  7. J. Faist, F. Capasso, D. L. Sivco, C. Sirtori, A. L. Hutchinson, and A. Y. Cho, Science 264, 553 (1994).
  8. J. Faist, F. Capasso, and C. Sirtori, Appl. Phys. Lett. 66, 538 (1995).
  9. C. Gmachl, F. Capasso, E. E. Narimanov, J. U. Nockel, A. D. Stone, J. Faist, D. L. Sivco, and A. Y. Cho, Science 280, 1556 (1998).
  10. S. Blaser, M. Rochat, M. Beck, and J. Faist, Phys. Rev. Lett. 61, 8369 (2000).
  11. C. Gmachl, F. Capasso, D. L. Sivco, and A. Y. Cho, Rep. Prog. Phys. 64, 1533 (2001).
  12. A. Orihashi, B. Suzuki, and C. Asada, Appl. Phys. Lett. 87, 233501 (2005).
  13. S. Haas, T. Stroucken, M. Hubner, J. Kuhl, B. Grote, A. Knorr, F. Jahnke, S. W. Koch, R. Hey, and K. Ploog, Phys. Rev. B 57, 14860 (1998).
  14. V. F. Eleson, Zh. Eksp. Teor. Fiz. 127, 131 (2005).
  15. V. F. Eleson and I. Yu. Kateev, Fiz. Tekh. Poluprovodn. 39, 1106 (2005).
  16. V. F. Eleson and I. Yu. Kateev, Fiz. Tekh. Poluprovodn. 42, 586 (2008).
  17. A. B. Pashkovskii, Pis'ma Zh. Tekh. Fiz. 82, 228 (2005).
  18. É. A. Gel'vich, E. I. Golant, and A. B. Pashkovskii, Pis'ma Zh. Tekh. Fiz. 32, 13 (2006).
  19. Wim Vanroose, Phys. Rev. A 64, 062708 (2001).
  20. N. V. Tkach, Yu. A. Seti, and G. G. Zegrya, Pis'ma Zh. Tekh. Fiz. 33, 70 (2007).
  21. N. V. Tkach and Yu. A. Seti, Fiz. Tekh. Poluprovodn. 43, 357 (2009).
  22. A. A. Gorbatsevich, M. N. Zhuravlev, and V. V. Kapaev, Zh. Eksp. Teor. Fiz. 134, 338 (2008).
  23. V. F. Elesin, I. Yu. Kateev, and M. A. Remnev, Fiz. Tekh. Poluprovodn. 43, 269 (2009).
  24. N. V. Tkach and Yu. A. Seti, Fiz. Tverd. Tela (St. Petersburg) 51, 979 (2009).
  25. G. H. Davies, The Physics of Low-Dimensional Semiconductors, Cambridge University Press, Cambridge (1998).
  26. L. D. Landau and E. M. Lifshitz, Quantum Mechanics (Non-Relativistic Theory), Fizmatlit, Moscow (2002); Pergamon Press, New York.
  27. A. I. Baz', Ya. B. Zel'dovich, and A. M. Perelomov, Scattering, Reactions, and Decays in Nonrelativistic Quantum Mechanics, Nauka, Moscow (1971).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.