A NEW-TYPE OF RECONSTRUCTION ON THE INSB((111)OVER-BAR) SURFACE DETERMINED BY GRAZING-INCIDENCE X-RAY-DIFFRACTION

[摘要] The (3 X 3) reconstruction of the InSb((111) over bar) surface has been investigated by grazing incidence X-ray diffraction and scanning tunneling microscopy. The structure is characterized by 6-atom rings on top of a slightly buckled InSb top double layer. Two types of rings have been found, an elliptic ring consisting of 4 In and 2 Sb atoms and a trigonal ring with 3 In and 3 Sb atoms. The bond angles and lengths are consistent with the concept of rehybridization and depolarization which explains the reconstructions of the (111) and (110) surfaces.

[发布日期] 1994-12-20