Submonolayer Er phases on Si(111)

被引：7
|
作者：
Saranin, AA
Zotov, AV
Pisarenko, IV
Lifshits, VG
Katayama, M
Oura, K [1 ]
机构：
[1] Osaka Univ, Fac Engn, Dept Elect Engn, Suita, Osaka 5650871, Japan
[2] Inst Automat & Control Proc, Vladivostok 690041, Russia
[3] Far Eastern State Univ, Fac Phys & Engn, Vladivostok 690000, Russia
[4] Vladivostok State Univ Econ & Serv, Dept Elect, Vladivostok 690600, Russia
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 03期
关键词：
atom-solid interactions; silicon; erbium; surface structure; scanning tunnelling microscopy (STM);
D O I：
10.1143/JJAP.43.1110
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Using scanning tunneling microscopy, formation and structure of the submonolayer Er/Si(111) phases have been studied. Depending on the growth conditions, one of two submonolayer phases is formed, 2root3- x 2root3 or root3 x root3. A metastable 2root3 x 2root3 phase develops at the deposition of similar to0.1-0.6 ML of Er onto a Si(111) 7 x 7 surface held at similar to300degreesC and disappears upon annealing to similar to500degreesC. The 2root3- x 2root3- phase contains about 0.5 ML of Er and incorporates an incomplete top Si(111) bilayer. A root3 x root3- phase is formed at annealing of similar to0.5-1.0 ML of Er to similar to500-650degreesC. It exhibits a honeycomb-like structure and accumulates 2/3 ML of Er and a complete top Si(111) bilayer. The possible structures of the 2root3 x 2root3 and root3 x root3 Er/Si(111) submonolayer phases are discussed.
引用
收藏
页码：1110 / 1113
页数：4
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