Time-Resolved Studies of Gallium Nitride Doped with Gadolinium

• Authors: B. Witek , A. Wysmołek , M. Kamińska , A. Twardowski , M. Potemski , M. Boćkowski , I. Grzegory
• Languages of publication: EN

Abstracts

EN

Time-resolved photoluminescence experiments on high quality bulk GaN doped with Gd are presented. It was found that the decay time of Gd-related transitions observed for 4.2 K around 1.78 eV is of about 3 ms. Such a long decay time strongly supports the identification of this emission band as due to transitions between Gd³+(4f⁷) levels. The decay time measured for Gd-related transitions observed in the UV spectral range, close to the GaN band-gap, was found to be much faster than 1 μs. This suggests that these emission lines could hardly be correlated with internal transitions within Gd³+(4f⁷). Possible origin of the Gd-related UV luminescence is discussed.

Keywords

EN

78.55.Cr; 75.50.Pp; 71.55.-i; 71.35.Ji

Discipline

• 78.55.Cr: III-V semiconductors
• 71.35.Ji: Excitons in magnetic fields; magnetoexcitons
• 75.50.Pp: Magnetic semiconductors
• 71.55.-i: Impurity and defect levels

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1425-1430

Dates

published

2008-11

received

2008-06-07

Contributors

author

B. Witek

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Wysmołek

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Kamińska

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Twardowski

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Potemski

• Grenoble High Magnetic Fields Laboratory, BP 166X, F-38042 Grenoble Cedex 9, France

author

M. Boćkowski

• Institute of High Pressure Physics, Polish Academy of Sciences, Warsaw, Poland

author

I. Grzegory

• Institute of High Pressure Physics, Polish Academy of Sciences, Warsaw, Poland

References

• 1. S. Dhar, O. Brandt, M. Ramsteiner, V.F. Sapega, K.H. Ploog, Phys. Rev. Lett. 94, 037205 (2005)
• 2. Z. Lipińska, M. Pawłowski, H.Żołnierowicz, A. Wysmołek, M. Palczewska, M. Kamińska, A. Twardowski, M. Boćkowski, I. Grzegory, Acta Phys. Pol. A 110, 243 (2006)
• 3. R.T. Wegh, H. Donker, A. Meijerink, R.J. Lamminmäki, J. Hölsä, Phys. Rev. B 56, 13841 (1997)
• 4. J.B. Gruber, B. Zandi, H.J. Lozykowski, W.M. Jadwisienczak, J. Appl. Phys. 91, 2929 (2002)
• 5. H.J. Lozykowski, W.M. Jadwisienczak, Appl. Phys. Lett. 76, 861 (2000)
• 6. H.J. Lozykowski, W.M. Jadwisienczak, I. Brown, Appl. Phys. Lett. 74, 1129 (1999)
• 7. E.E. Nyein, U. Hömmerich, J. Heikenfeld, D.S. Lee, A.J. Steckl, J.M. Zavada, Appl. Phys. Lett. 82, 1655 (2003)
• 8. T. Monteiro, J. Soares, M.R. Correia, E. Alves, J. Appl. Phys. 89, 6183 (2001)
• 9. K. Wang, R.W. Martin, E. Nogales, P.R. Edwards, K.P. O'Donnel, K. Lorenz, E. Alves, I.M. Watson, Appl. Phys. Lett. 89, 131912 (2006)
• 10. J.H. Kim, N. Shepherd, M. Davidson, P.H. Holloway, Appl. Phys. Lett. 83, 641 (2003)
• 11. K. Lorentz, U. Wahl, E. Alves, E. Nogales, S. Dalmasso, R.W. Martin, K.P. O'Donnell, M. Wojdak, A. Braud, T. Monteiro, T. Wojtowicz, P. Ruterana, S. Ruffenach, O. Briot, Opt. Mater. 28, 750 (2006)
• 12. J.H. Kim, P.H. Holloway, Appl. Phys. Lett. 85, 1689 (2004)
• 13. E.D. Readinger, G.D. Metcalfe, H. Shen, M. Wraback, Appl. Phys. Lett. 92, 061108 (2008)
• 14. H.J. Lozykowski, W.M. Jadwisienczak, I. Brown, J. Appl. Phys. 88, 210 (2000)
• 15. U. Vetter, J.B. Gruber, A.S. Nijjar, B. Zandi, G.Öhl, U. Wahl, B. de Vries, H. Hofsäss, M. Dietrich, and the ISOLDE Collaboration, Phys. Rev. B, 205201 (2006)
• 16. J.-S. Filhol, R. Jones, M.J. Shaw, P.R. Briddon, Appl. Phys. Lett. 84, 2841 (2004)
• 17. Y.E. Romanyuk, L.D. Kranz, S.R. Leone, J. Appl. Phys. 103, 073104 (2008)
• 18. U. Vetter, J. Zenneck, H. Hofsäss, Appl. Phys. Lett. 83, 2145 (2003)

Identifiers

DOI

10.12693/APhysPolA.114.1425