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Electronically patterning through one-dimensional nanostripes with high density of states on single-crystalline domain
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Large scale STM image of surface covered by full crystalline domain. Inset is the line profile of protrusive nanostripes self-organized grown on domain. (image sizes , , ). (b) LEED pattern of full crystalline domain; there is the superstructure of typical single crystal and the splitting of the are indicated by the white arrow.

Image of FIG. 2.
FIG. 2.

[(a) and (b)] STM images of a single long domain with two nanostripes at the bias voltage of (concave) and (protrusive), respectively (image size ). (b) Extended bias voltage dependence of apparent heights. The color mapping indicates the topographic relative height contrast reverse.

Image of FIG. 3.
FIG. 3.

(a) STM topographic image of the nanostripes (image size , , ). (b) Current mapping image at . (c) curves of the oxide domain and the nanostripe. The curves are obtained in the inset and indicate the enhanced density of states induced by the nanostripes. (d) A series of conductance spectra in the log scale taken from A to B [see (b)] and the gap states induced by the nano-stripes are indicated by the two white arrows.

Image of FIG. 4.
FIG. 4.

(a) STM image of the single domain with two nanostripes (image size , , ). (b) In situ image after depositing of 0.25 ML (image size , , ); the nanostripes demonstrate the strong trapping ability and turn the Co nanoparticles into the one-dimensional nanoparticle chains. (c) Random growth of 0.15 ML Co nanoparticles on the domain in the absence of nanostripes (image size , , ), (d) 0.15 ML Co deposited on full domain on NiAl(100) at room temperature (image size , , ). This image reveals that the well-ordered cobalt nanoparticles can be grown through such one-dimensional electronically self-patterned template.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electronically patterning through one-dimensional nanostripes with high density of states on single-crystalline Al2O3 domain