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Graphene growth on polycrystalline Ru thin films
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10.1063/1.3224913
/content/aip/journal/apl/95/13/10.1063/1.3224913
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3224913
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Overview TEM cross section showing the structure of a representative Ru film grown on . (b) TEM image of two Ru grains and the grain boundary that separates them. (inset: diffraction pattern from a Ru grain taken along the [2–1-10] axis). (c) High-resolution TEM image of the Ru grain material and the grain boundary.

Image of FIG. 2.
FIG. 2.

(a) XTEM image close to the graphene/Ru interface. (b) Line profile showing the lattice spacing of the 10 topmost Ru lattice planes and the graphene layer.

Image of FIG. 3.
FIG. 3.

(a) Overview STM image showing the surface morphology of the polycrystalline Ru film grown on and the continuous graphene layer formed on it . The inset shows a higher magnification view of the graphene/Ru moiré structure (scale bar: 10 nm). [(b) and (c)] STM images of the moiré structure over different Ru grains and the grain boundaries that separate them. The panels on the right show models of the abrupt change in the moiré resulting from an in-plane rotation of the Ru lattice across a grain boundary. (d) Reciprocal space construction illustrating the relation between the angle of rotation between the Ru and graphene lattices, , and the resulting change in orientation (angle ) and scaling (from reciprocal vector to ) of the moiré structure. (e) Theoretical relationship between moiré orientation and scaling, assuming a continuous graphene sheet flowing across Ru grains with different orientations. Points are measurements at different positions in (a).

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/content/aip/journal/apl/95/13/10.1063/1.3224913
2009-09-29
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Graphene growth on polycrystalline Ru thin films
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3224913
10.1063/1.3224913
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