STRUCTURES OF POLYTYPOIDS IN ALN CRYSTALS CONTAINING OXYGEN

Authors
YAN YF TERAUCHI M TANAKA M
Citation
Yf. Yan et al., STRUCTURES OF POLYTYPOIDS IN ALN CRYSTALS CONTAINING OXYGEN, Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties, 77(4), 1998, pp. 1027-1040
Citations number
21
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter","Metallurgy & Metallurigical Engineering
Journal title
Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties → ACNP
ISSN journal
13642804
Volume
77
Issue
4
Year of publication
1998
Pages
1027 - 1040
Database
ISI
SICI code
1364-2804(1998)77:4<1027:SOPIAC>2.0.ZU;2-R
Abstract
Polytypoid structures in the AlN crystals containing oxygen were inves tigated by electron diffraction and high-resolution electron microscop y. The polytypoids were revealed to consist of flat and corrugated inv ersion domains. The flat inversion domain boundaries were found to hav e three different interfacial structures. The distance between two nei ghbouring flat inversion domain boundaries was found to be either 5c o r (5 +/- 0.5)c, where c is the lattice parameter along the c axis of t he wurtzite 2H-AlN crystal. Structural models which explain well the e lectron diffraction patterns and high-resolution electron microscopy i mages of the polytypoids are proposed.