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2016 | 129 | 1a | A-66-A-69
Article title

Type-I and Type-II Confinement in Quantum Dots: Excitonic Fine Structure

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EN
Abstracts
EN
We have theoretically studied type-I and type-II confinement in InAs quantum dots with GaAs_{1-y}Sb_y capping layer. The character of the confinement can be adjusted by the Sb content. We have found that upon the transition from type-I to type-II confinement the hole wave functions change the topology from a compact shape to a two-segment shape, resulting in the complex changes in the exciton fine structure splitting with zero values at narticular compositions. Additionally, a high exciton radiative recombination probability is preserved even in type-II. This allows to design strongly luminescent quantum dots with naturally low fine structure splitting, which could serve as sources of entangled photon pairs for quantum communication.
Keywords
EN
Year
Volume
129
Issue
1a
Pages
A-66-A-69
Physical description
Dates
published
2016-01
Contributors
author
  • Central European Institute of Technology, Brno University of Technology, Technická 10, 616 00 Brno, Czech Republic
author
  • Central European Institute of Technology, Masaryk University, Kamenice 753, 625 00 Brno, Czech Republic
author
  • Central European Institute of Technology, Brno University of Technology, Technická 10, 616 00 Brno, Czech Republic
  • Institute of Physical Engineering, Brno University of Technology, Technická 22, 616 69 Brno, Czech Republic
References
  • [1] O. Benson, C. Santori, M. Pelton, Y. Yamamoto, Phys. Rev. Lett. 84, 2513 (2000), doi: 10.1103/PhysRevLett.84.2513
  • [2] N. Akopian, N.H. Lindner, E. Poem, Y. Berlatzky, J. Avron, D. Gershoni, B.D. Gerardot, P.M. Petroff, Phys. Rev. Lett. 96, 130501 (2006), doi: 10.1103/PhysRevLett.96.130501
  • [3] T. Takagahara, Phys. Rev. B 62, 16840 (2000), doi: 10.1103/PhysRevB.62.16840
  • [4] M. Bayer, G. Ortner, O. Stern, A. Kuther, A.A. Gorbunov, A. Forchel, P. Hawrylak, S. Fafard, K. Hinzer, T.L. Reinecke, S.N. Walck, J.P. Reithmaier, F. Klopf, F. Schäfer, Phys. Rev. B 65, 195315 (2002), doi: 10.1103/PhysRevB.65.19531
  • [5] Y.H. Huo, V. Křápek, A. Rastelli, O.G. Schmidt, Phys. Rev. B 90, 041304 (2014), doi: 10.1103/PhysRevB.90.041304
  • [6] A. Schliwa, M. Winkelnkemper, A. Lochmann, E. Stock, D. Bimberg, Phys. Rev. B 80, 161307 (2009), doi: 10.1103/PhysRevB.80.161307
  • [7] R. Trotta, E. Zallo, C. Ortix, P. Atkinson, J.D. Plumhof, J. van den Brink, A. Rastelli, O.G. Schmidt, Phys. Rev. Lett. 109, 147401 (2012), doi: 10.1103/PhysRevLett.109.147401
  • [8] J.D. Plumhof, V. Křápek, F. Ding, K.D. Jöns, R. Hafenbrak, P. Klenovský, A. Herklotz, K. Dörr, P. Michler, A. Rastelli, O.G. Schmidt, Phys. Rev. B 83, 121302 (2011), doi: 10.1103/PhysRevB.83.121302
  • [9] J.D. Plumhof, R. Trotta, V. Křápek, E. Zallo, P. Atkinson, S. Kumar, A. Rastelli, O.G. Schmidt, Phys. Rev. B 87, 075311 (2013), doi: 10.1103/PhysRevB.87.075311
  • [10] H.Y. Liu, M.J. Steer, T.J. Badcock, D.J. Mowbray, M.S. Skolnick, F. Suarez, J.S. Ng, M. Hopkinson, J.P.R. David, J. Appl. Phys. 99, 046104 (2006), doi: 10.1063/1.2173188
  • [11] P. Klenovský, V. Křápek, D. Munzar, J. Humlíček, Appl. Phys. Lett. 97, 203107 (2010), doi: 10.1063/1.3517446
  • [12] J.M. Ulloa, J.M. Llorens, B. Alén, D.F. Reyes, D.L. Sales, D. González, A. Hierro, Appl. Phys. Lett. 101, 253112 (2012), doi: 10.1063/1.4773008
  • [13] O. Stier, M. Grundmann, D. Bimberg, Phys. Rev. B 59, 5688 (1999), doi: 10.1103/PhysRevB.59.5688
  • [14] S. Birner, T. Zibold, T. Andlauer, T. Kubis, M. Sabathil, A. Trellakis, P. Vogl, IEEE Trans. Electron Dev. 54, 2137 (2007), doi: 10.1109/TED.2007.902871
  • [15] R. Seguin, A. Schliwa, S. Rodt, K. Pötschke, U.W. Pohl, D. Bimberg, Phys. Rev. Lett. 95, 257402 (2005), doi: 10.1103/PhysRevLett.95.257402
  • [16] V. Křápek, P. Klenovský, T. Šikola, Phys. Rev. B 92, 195430 (2015), doi: 10.1103/PhysRevB.92.195430
  • [17] A. Hospodková, M. Zíková, J. Pangrác, J. Oswald, J. Kubištová, K. Kuldová, P. Hazdra, E. Hulicius, J. Phys. D Appl. Phys. 46, 095103 (2013), doi: 10.1088/0022-3727/46/9/095103
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv129n1a13kz
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