Вышедшие номера
STM and LEED studies of the atomically ordered terraced Si(557) surfaces
Chaika A.N.1, Bozhko S.I.1, Ionov A.M.1, Myagkov A.N.1, Abrosimov N.V.1
1Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russia
Поступила в редакцию: 12 сентября 2006 г.
Выставление онлайн: 19 марта 2007 г.

We report results of LEED, STM and photoemission studies of atomic and electronic structure of atomically ordered terraced Si(hhm) surfaces. LEED and STM data demonstrate a possibility to fabricate atomically accurate terraced structures based on Si(557) with different periodicities depending on thermal treatment procedure. Atomically resolved STM images reveal (7x7) terrace ordering and triple step structure. Comparative photoemission studies of the valence band and Si 2p core level electronic structure have been done on clean stepped surfaces with different terrace widths (namely, Si(557), Si(556) ) and flat Si(111)-(7x 7). PACS: 68.35.Bs, 68.37.Ef, 73.20.At