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Synthesis of metastable epitaxial zinc-blende-structure AlN by solid-state reaction

Journal Article · · Applied Physics Letters; (United States)
DOI:https://doi.org/10.1063/1.106943· OSTI ID:7306181
; ; ;  [1]; ;  [2]
  1. Materials Science Department, the Coordinated Science Laboratory and the Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801 (United States)
  2. Thin Film Division, Department of Physics, Linkoeping University, S-581 83 Linkoeping (Sweden)
Epitaxial metastable zinc-blende-structure {beta}-AlN was synthesized by the solid-state reaction between single-crystal Al(001) and TiN(001) layers grown on MgO(001) by ultrahigh vacuum magnetron sputter deposition. At an annealing temperature {ital T}{sub {ital a}}=600 {degree}C, the interaction proceeded according to the following overall reaction: 4Al+TiN{r arrow}Al{sub 3}Ti+AlN, in which {beta}-AlN was formed pseudomorphically between cubic TiN and tetragonal Al{sub 3}Ti layers. The lattice constant of {beta}-AlN was found to be 0.438 nm, which corresponds to a 3.3% lattice mismatch with the underlying TiN layer.
DOE Contract Number:
AC02-76ER01198
OSTI ID:
7306181
Journal Information:
Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 60:20; ISSN APPLA; ISSN 0003-6951
Country of Publication:
United States
Language:
English