Gao, S., Zhang, A., Zhu, J. et al. (1 more author) (2004) Anisotropic spectroscopy of nitrogen K-edge in group-III nitrides. Applied Physics Letters, 84 (15). pp. 2784-2786. ISSN 0003-6951
Abstract
Ab initio calculation of nitrogen K-edges for use in the core-level spectroscopy of industrially important group-III nitrides (AlN, GaN, InN) has been carried out systematically including the core-hole effect. The theoretical spectra for transition into final states with px,y and pz symmetries are in good agreement with the available anisotropic electron energy-loss measurements. Our spectra can be used as "fingerprints" to characterize the group-III nitrides, for example, not only to distinguish between different polymorphs of group-III nitrides, but also to identify the presence of surface oxidation. We have also presented our simulated results in terms of an orientation-average spectrum and a sample orientation-dependent dichroic spectrum for future reference.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | York RAE Import |
Date Deposited: | 12 Aug 2009 13:41 |
Last Modified: | 12 Aug 2009 13:41 |
Published Version: | http://dx.doi.org/10.1063/1.1691498 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.1691498 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:5629 |