Details

Autor(en) / Beteiligte

• Cho, Hyung Koun
• Kim, Dong Chan
• Sim, Eundeok
• Han, Won Suk
• Bae, Sung Bum

Titel

Coexistence of chalcopyrite and CuAu-type ordered structures in In0.52Al0.48As epilayers grown on InP substrates

Ist Teil von

• Physica. B, Condensed matter, 2006-04, Vol.376-377, p.598-601

Erscheinungsjahr

2006

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Ordering formation in In0.52Al0.48As alloys grown on (001) InP substrates by metalorganic chemical vapor deposition was investigated using transmission electron microscopy (TEM). In the plan-view selective area diffraction pattern, the 12 superlattice reflections around the transmitted spot and the {200} spots were observed, which are associated with the chalcopyrite- and CuAu-type ordered structures. In the InAlAs consisting of III-III-V elements, these ordered phases with the rod-shaped domains elongated along the [220] show the coexistence of CuAu- and chalcopyrite-type ordered structures. An atomic model showing the formation process of the diffraction pattern of the chalcopyrite- and CuAu-type ordered structures is presented here based on the TEM results.