Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-24T13:33:26.968Z Has data issue: false hasContentIssue false

Excited Multiplets of Eu in GaN

Published online by Cambridge University Press:  14 March 2011

Ben Hourahine*
Affiliation:
Department of Physics, SUPA, 107 Rottenrow, University of Strathclyde, Glasgow, Scotland,GL4 0NG, UK
Get access

Abstract

A method to calculate the multiplet states of lanthanide impurities in solids is presented. This approach is based on a semi-empirical density functional method which includes corrections to account for the correlation and spin-orbit coupling of the 4f electrons. Specific multiplet states of the rare earth are produced by constraining the system. This approach is then used to investigate some of the properties of substitutional europium impurities in gallium nitride, reproducing the relative energy of two multiplets, and discussing a potential excitation mechanism for these centers.

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. O’Donnell, and Hourahine, , Europ. Phys. J.: Appl. Phys. 36 91 (2006).Google Scholar
2. Dorenbos, and Kolk, van der, Opt. Matt. 30 1052 (2008).Google Scholar
3. Lozykowski, , Phys. Rev. B 48 17758 (1993).Google Scholar
4. Frauenheim, et al. , J. Phys.: Condens. Matter 14 3015 (2002).Google Scholar
5. Aradi, , Hourahine, and Frauenheim, , J. Phys. Chem. A 111 (2007).Google Scholar
6. Sanna, , Frauenheim, and Gerstmann, , Phys. Rev. B 78 085201 (2008).Google Scholar
7. Svane, , Christensen, , Petit, , Szotek, and Temmerman, Phys. Rev. B 74 165204 (2006).Google Scholar
8. Kohler, , Frauenheim, , Hourahine, , Seifert, and Sternberg, , J. Phys. Chem A 111 5622 (2007).Google Scholar
9. Pickett, , J. Korean Phys. Soc. (Proc. Suppl.) 29, S70 (1996).Google Scholar
10. Sanna, , Hourahine, , Gerstmann, , Frauenheim, , Phys. Rev. B 76 155128 (2007).Google Scholar
11. Anisimov, , Aryasetiawan, and Lichtenstein, , J. Phys. Cond Matt. 9 767 (1997).Google Scholar
12. Sanna, , Hourahine, , Gallauner, and Frauenheim, , J. Phys. Chem A 111, 5665 (2007).Google Scholar
13. Hourahine, et al. , J. Phys. Chem A 111, 5671 (2007).Google Scholar
14. Hourahine, , Aradi, and Frauenheim, , J. Phys.: Conf. Ser. 242 012005 (2010).Google Scholar
15. Cardona, and Christensen, , Solid State Comm. 116 421 (2000).Google Scholar
16. Carnall, , Goodman, , Rajnak, and Rana, , J. Chem. Phys. 90, 3443 (1989).Google Scholar
17. Theophilou, , IntemationalJoumal of Quantum Chemistry 61 333 (1997).Google Scholar
18. Dederichs, et al. , Phys. Rev. Lett. 53 2512 (1984).Google Scholar
19. Wu, and Voorhis, van, Phys. Rev. A 72 24502 (2005).Google Scholar
20. Sanna, Simone, PhD thesis Universitat Paderborn (2003).Google Scholar
21. Pack, and Monkhorst, , Phys. Rev. B 16 1748 (1977).Google Scholar
22. Dieke, G. H., "Spectra and energy levels of rare earth ions in crystals", Interscience New York (1968).Google Scholar
23. Roqan, et al. , Phys. Rev. B 81 085209 (2010).Google Scholar
24. Janak, , Phys. Rev. B 18 7165 (1978).Google Scholar