The fate of the 2√3 × 2√3R(30°) silicene phase on Ag(111) | Zendy

Zhi Long Liu | Zendy; Meixiao Wang | Zendy; Canhua Liu | Zendy; Jinfeng Jia | Zendy; Patrick Vogt | Zendy; C. Quaresima | Zendy; C. Ottaviani | Zendy; Bruno Olivieri | Zendy; Paola De Padova | Zendy; G. Le Lay | Zendy

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The fate of the 2√3 × 2√3R(30°) silicene phase on Ag(111)

Author(s) -

Zhi Long Liu,

Meixiao Wang,

Canhua Liu,

Jinfeng Jia,

Patrick Vogt,

C. Quaresima,

C. Ottaviani,

Bruno Olivieri,

Paola De Padova,

G. Le Lay

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4894871

Subject(s) - silicene , materials science , scanning tunneling microscope , silicon , x ray photoelectron spectroscopy , phase (matter) , crystallography , chemical physics , nanotechnology , condensed matter physics , optoelectronics , chemistry , physics , nuclear magnetic resonance , organic chemistry

Silicon atoms deposited on Ag(111) produce various single layer silicene sheets with different buckling patterns and periodicities. Low temperature scanning tunneling microscopy reveals that one of the silicene sheets, the hypothetical √7 × √7 silicene structure, on 2√3 × 2√3 Ag(111), is inherently highly defective and displays no long-range order. Moreover, Auger and photoelectron spectroscopy measurements reveal its sudden death, to end, in a dynamic fating process at ∼300 °C. This result clarifies the real nature of the 2√3 × 2√3R(30°) silicene phase and thus helps to understand the diversity of the silicene sheets grown on Ag(111)

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