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1996 | 90 | 5 | 887-890
Article title

Thermal Expansion of GaN Bulk Crystals and Homoepitaxial Layers

Content
Title variants
Languages of publication
EN
Abstracts
EN
Thermal expansion of gallium nitride was measured using high resolution X-ray diffraction. The following samples were examined: (i) single monocrystals grown at pressure of about 15 kbar, (ii) homoepitaxial layers. The main factor influencing both, the lattice parameters and the thermal expansion coefficient, are free electrons related to the nitrogen vacancies. The origin of an increase in the lattice constants by free electrons is discussed in terms of the deformation potential of the conduction-band minimum. An increase of the thermal expansion by free electrons is explained by a decrease of elastic constants.
Keywords
EN
Publisher

Year
Volume
90
Issue
5
Pages
887-890
Physical description
Dates
published
1996-11
Contributors
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
  • CEA-Grenoble, Departement de Recherche Fondamentale sur la Matiere Condensée SP2M, 17 Rue des Martyrs, 38054 Grenoble Cedex 9, France
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv90z507kz
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