We thank D. A. MacLaren for many useful discussions and B. Prost (ITME) for the ultraperfect Si(111) wafers. This work was supported by the Ministerio de Educación y Ciencia through projects FIS2007- 61114 and CONSOLIDER CSD-2007-00010, Comunidad de Madrid through project Nanomagnet S0505-MAT0194, and the European Union through the NEST-STREP project no. 509014, and by the Programa Ramón y Cajal (D.F.).
A Quantum-Stabilized Mirror for Atoms†
Article first published online: 5 AUG 2008
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 20, Issue 18, pages 3492–3497, September 17, 2008
How to Cite
Barredo, D., Calleja, F., Nieto, P., Hinarejos, J. J., Laurent, G., de Parga, A. L. V., Farías, D. and Miranda, R. (2008), A Quantum-Stabilized Mirror for Atoms. Adv. Mater., 20: 3492–3497. doi: 10.1002/adma.200800866
- Issue published online: 5 SEP 2008
- Article first published online: 5 AUG 2008
- Manuscript Revised: 26 MAY 2008
- Manuscript Received: 28 MAR 2008
- molecular beams;
- quantum effects;
- scanning tunneling microscopy;
- surface structure
“The smoothest surface ever made”, that is, a mirror for atoms comprising a Pb thin film on Si(111), is stabilized through quantum size effects to be atomically flat. It shows an absolute reflectivity for He atoms of 15%, and we report on how values close to 40% could be obtained. This highly reflective mirror can also be electrostatically bent to focus the He beam into a sub-micrometer spot. This implies that current prototype scanning helium atom microscopy/diffractometry instruments could easily reach nanometer resolution.