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Tuning of silicene-substrate interactions with potassium adsorption
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10.1063/1.4808214
/content/aip/journal/apl/102/22/10.1063/1.4808214
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/22/10.1063/1.4808214
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Figures

Image of FIG. 1.
FIG. 1.

Change of the work function, Δ, of the Si(111) (blue circles) and silicene/ZrB(0001) (black squares, red triangles) surfaces at room temperature with increasing potassium coverage, defined as the K/Si ratio , as obtained at the NSLS-BL U5UA (blue circles, black squares) and KEK-PF BL-18A (red triangles) set-ups.

Image of FIG. 2.
FIG. 2.

-LEED patterns recorded at 30 eV, corresponding to the K atom coverage of: (a)  = 0; (b)  = 0.08 ± 0.01; and (c)  = 0.16 ± 0.03.

Image of FIG. 3.
FIG. 3.

Valence electronic structure of epitaxial silicene on ZrB(0001) along the direction, in the vicinity of the point of the repeated BZ: (a) ARPES spectra of pristine silicene ( = 0); and (b) at a K/Si ratio of  = 0.18 ± 0.03.

Image of FIG. 4.
FIG. 4.

ARPES spectra of epitaxial silicene on ZrB(0001) along the direction, in the vicinity of the point of the 1st BZ: (a) at  = 0; (b)  = 0.09 ± 0.01; and (c)  = 0.18 ± 0.03.

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/content/aip/journal/apl/102/22/10.1063/1.4808214
2013-06-05
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tuning of silicene-substrate interactions with potassium adsorption
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/22/10.1063/1.4808214
10.1063/1.4808214
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