A. R. Smith, V. Ramachandran, R. M. Feenstra
Department of Physics, Carnegie Mellon
University,
Pittsburgh, Pennsylvania 15213
D. W. Greve
Department of Electrical and Computer
Engineering,
Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
A. Ptak, T. H. Myers
Department of Physics, West Virginia University,
Morgantown, West Virginia 26506
W. L. Sarney, L. Salamanca-Riba
Department of Materials and Nuclear Engineering,
University of Maryland, College Park, Maryland 20742
M.-S. Shin, and M. Skowronski
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
Published in MRS
Internet J. Nitride Semicond. Res. 3,12 (1998).