Picture of Open Access badges

Discover Open Access research at Strathprints

It's International Open Access Week, 24-30 October 2016. This year's theme is "Open in Action" and is all about taking meaningful steps towards opening up research and scholarship. The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Explore recent world leading Open Access research content by University of Strathclyde researchers and see how Strathclyde researchers are committing to putting "Open in Action".


Image: h_pampel, CC-BY

Electronic behavior of rare-earth dopants in AlN: A density-functional study

Petit, S. and Jones, R. and Shaw, M.J. and Briddon, P.R. and Hourahine, B. and Frauenheim, T. (2005) Electronic behavior of rare-earth dopants in AlN: A density-functional study. Physical Review B: Condensed Matter and Materials Physics, 72 (2005). ISSN 1098-0121

Full text not available in this repository. (Request a copy from the Strathclyde author)


Local density functional calculations are carried out on Er, Eu, and Tm rare-earth (RE) dopants in hexagonal AlN. We find that the isolated impurities prefer to substitute for Al and, in contrast with isolated RE dopants in GaAs and GaN, REAl defects are electrically active and introduce deep donor levels around Ev+0.5 eV. RE complexes with oxygen and vacancies are discussed; some of these have deep levels in the upper third of the gap and could account for a threshold excitation energy around 4 eV observed for intra-f transitions at 465 and 478 nm in AlN:Tm.