IDEAS home Printed from https://ideas.repec.org/a/spr/eurphb/v94y2021i6d10.1140_epjb_s10051-021-00137-4.html
   My bibliography  Save this article

Photoionization cross-section in a GaAs spherical quantum shell: the effect of parabolic confining electric potentials

Author

Listed:
  • Moletlanyi Tshipa

    (University of Botswana)

  • Lalit K. Sharma

    (University of Botswana)

  • Surender Pratap

    (Central University of Himachal Pradesh)

Abstract

Theoretical study on binding energies due to a centred charged impurity and the associated photoionization cross-section (PCS) in a spherical shell are presented. This was achieved by solving the Schrödinger equation within the effective mass approach. Intrinsic to the spherical quantum shell may be the parabolic potential or the shifted parabolic potential, each superimposed on an infinite spherical square well. Results indicate that the parabolic potential enhances binding energies while the shifted parabolic potential diminishes them. These electric potentials considerably modify photoionization cross section in two ways. One, the parabolic potential blueshifts peaks of PCS while the shifted parabolic potential redshifts the peaks. Second, the parabolic potential decreases the magnitude of the peaks of the PCS while the shifted parabolic potential increases the magnitudes of the peaks. In essence, these two potential may be used to manipulate PCS in quantum structures. Graphic abstract

Suggested Citation

  • Moletlanyi Tshipa & Lalit K. Sharma & Surender Pratap, 2021. "Photoionization cross-section in a GaAs spherical quantum shell: the effect of parabolic confining electric potentials," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 94(6), pages 1-8, June.
    • Handle: RePEc:spr:eurphb:v:94:y:2021:i:6:d:10.1140_epjb_s10051-021-00137-4
    DOI: 10.1140/epjb/s10051-021-00137-4
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1140/epjb/s10051-021-00137-4
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1140/epjb/s10051-021-00137-4?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Min Hu & Hailong Wang & Qian Gong & Shumin Wang, 2018. "Comparison of external electric and magnetic fields effect on binding energy of hydrogenic donor impurity in different shaped quantum wells," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 91(1), pages 1-7, January.
    2. Moletlanyi Tshipa, 2016. "The effects of cup-like and hill-like parabolic confining potentials on photoionization cross section of a donor in a spherical quantum dot," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 89(8), pages 1-5, August.
    3. Ecaterina C. Niculescu & Cristina Stan & Gabriela Tiriba & Cristina Truşcǎ, 2017. "Magnetic field control of absorption coefficient and group index in an impurity doped quantum disc," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 90(5), pages 1-11, May.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      More about this item

      Statistics

      Access and download statistics

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:eurphb:v:94:y:2021:i:6:d:10.1140_epjb_s10051-021-00137-4. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.