Scalable Patterning of One-Dimensional Dangling Bond Rows on Hydrogenated Si(001)
Hydrogen dangling bonds are highly reactive and their selective exposure on hydrogenated Si(001) using scanning probes is developing as a powerful lithography to pattern molecules and atoms. We have found that hydrogen is more weakly bound along the centre of Haiku stripes, thus offering a new, fully scalable thermodynamic route to produce very long dangling bond rows in large numbers to self-assemble long chains of atoms and molecules. Our STM study further reveals an unexpected flat dimer configuration, possibly stabilized by the local strain induced by the Haiku core structure.
François Bianco, David R. Bowler, James H. G. Owen, Sigrun A. Köster, Maria Longobardi, and Christoph Renner
ACS Nano 2013, 7, 5, 4422–442
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