Jd. Omahony et al., CONTROL OF TERRACE WIDTH AND ATOMIC STEP DISTRIBUTION ON VICINAL SI(111) SURFACES BY THERMAL-PROCESSING, Semiconductor science and technology, 8(4), 1993, pp. 495-501
Si(111) surfaces misoriented by 4-degrees towards [112] have been stud
ied by scanning tunnelling microscopy. Topographs of surfaces, produce
d by annealing, followed by rapid quenching, reveal a temperature-depe
ndent transition from a structure consisting of wide irregular terrace
s separated by small irregular clusters of double steps to a single hi
ghly ordered phase of narrow, evenly spaced terraces separated by sing
le monatomic steps. The quenched-in phases are stable at room temperat
ure.