Local structures of free-standing AlₓGa₁ˍₓN thin films studied by extended x-ray absorption fine structure
| dc.contributor.author | Yu, Kin Man | |
| dc.contributor.author | Shan, W. | |
| dc.contributor.author | Glover, C. J. | |
| dc.contributor.author | Ridgway, M. C. | |
| dc.contributor.author | Wong, William S. | |
| dc.contributor.author | Yang, W. | |
| dc.date.accessioned | 2015-10-19T22:57:01Z | |
| dc.date.available | 2015-10-19T22:57:01Z | |
| dc.date.issued | 1999-12-27 | |
| dc.date.updated | 2015-12-12T09:37:24Z | |
| dc.description.abstract | Local structural information for the first two atomic shells surrounding Ga atoms in free standing AlₓGa₁ˍₓN alloy films has been obtained by extended x-ray absorption fine structure spectroscopy. For an AlN mole fraction ranging from 0 to 0.6, we found that the first shell Ga–N bond length had only a weak composition dependence, roughly one quarter of that predicted by Vegard’s Law. In the second shell, the Ga–Ga bond length was significantly longer than that of Ga–Al (Δ∼0.04–0.065 Å). A bond-type specific composition dependence was observed for the second shell cation–cation distances. While the composition dependence of the Ga–Ga bond length is ∼70% of that predicted by Vegard’s Law, the Ga–Al bond length was essentially composition independent. These results suggested that local strain in AlₓGa₁ˍₓN was also accommodated by lattice distortion in the Al cation sublattice. | |
| dc.description.sponsorship | This work was supported by the Director, Office of Science, Of- fice of Basic Energy Sciences, Materials Science Division of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. The LLO work was performed at the UC Berkeley Integrated Materials Laboratory which was supported in part by the National Science Foundation. C.J.G. and M.C.R. were supported by the Australian Synchrotron Research Program, funded by the Commonwealth of Australia via the Major National Research Facilities Program. SSRL was supported by the Office of Basic Energy Sciences of the U.S. Department of Energy. | en_AU |
| dc.identifier.issn | 0003-6951 | en_AU |
| dc.identifier.uri | http://hdl.handle.net/1885/15973 | |
| dc.publisher | American Institute of Physics (AIP) | |
| dc.rights | http://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 20/10/15). Copyright 1999 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.125548 | |
| dc.source | Applied Physics Letters | |
| dc.title | Local structures of free-standing AlₓGa₁ˍₓN thin films studied by extended x-ray absorption fine structure | |
| dc.type | Journal article | |
| local.bibliographicCitation.issue | 26 | en_AU |
| local.bibliographicCitation.lastpage | 4099 | en_AU |
| local.bibliographicCitation.startpage | 4097 | en_AU |
| local.contributor.affiliation | Yu, Kin Man, Lawrence Livermore National Laboratory, United States of America | en_AU |
| local.contributor.affiliation | Shan, Wei, OptiWork, Inc., United States of America | en_AU |
| local.contributor.affiliation | Glover, Christopher, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National University | en_AU |
| local.contributor.affiliation | Ridgway, Mark C, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National University | en_AU |
| local.contributor.affiliation | Wong, William S, University of California, United States of America | en_AU |
| local.contributor.affiliation | Yang, W, Lawrence Berkeley National Laboratory, United States of America | en_AU |
| local.contributor.authoruid | u9001886 | en_AU |
| local.description.notes | Imported from ARIES | en_AU |
| local.description.refereed | Yes | |
| local.identifier.absfor | 090699 | en_AU |
| local.identifier.ariespublication | MigratedxPub24983 | en_AU |
| local.identifier.citationvolume | 75 | en_AU |
| local.identifier.doi | 10.1063/1.125548 | en_AU |
| local.identifier.scopusID | 2-s2.0-0344027706 | |
| local.publisher.url | https://www.aip.org/ | en_AU |
| local.type.status | Published Version | en_AU |