Project

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Electronic, magnetic and transport properties of one-dimensional systems

English title Electronic, magnetic and transport properties of one-dimensional systems
Applicant Renner Christoph
Number 135198
Funding scheme Project funding (Div. I-III)
Research institution Département de Physique de la Matière Condensée Université de Genève
Institution of higher education University of Geneva - GE
Main discipline Condensed Matter Physics
Start/End 01.09.2011 - 31.08.2014
Approved amount 495'796.00
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Keywords (6)

Single atom wire; Tunneling spectroscopy; Scanning tunneling microscopy; Spin polarized scanning tunneling microscopy; Low dimensional magnetism; Tomanaga Luttinger liquid

Lay Summary (English)

Lead
Lay summary

This project aims at exploring exotic quantum phenomena that emerge in solids approaching the limiting case of one dimension. The Fermi-liquid theory describing conventional bulk conductors breaks down in one-dimensional systems. They are predicted to behave remarkably different, but their unusual properties remain largely untested by experiment due to the lack of a suitable model system for electronic systems. Our proposal is to take advantage of the Haiku stripe (HS) to explore the intrinsic physical properties of the ultimate one-dimensional model system - a single atom chain.  The HS is a remarkable, perfectly straight and defect free self-assembled silicon-in-silicon endotaxial nanowire we have uncovered on the Si(001) surface. It offers many unique features to realize our ambitious goal. Firstly, theory predicts a one dimensional electronic state above the conduction band minimum along the HS, which might well be a suitable 1D model system in its own right. Secondly, the HS is a promising template to self-assemble single-atom chains of selected species: it is stable in ultra high vacuum (UHV) up to 400°C, survives momentary exposure to air at room temperature, and can grow micrometer-scale long at a constant width of 1.5nm, long enough to allow electrical connections to lithographically defined metallic electrodes. These unique features bring transport measurements, electronic and magnetic characterizations of a single isolated nanowire, possibly a single-atom chain, within the realm of experimental scrutiny.

Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
One-dimensional silicon nanolines in the Si(001):H surface
Bianco F., Köster S.A., Longobardi M., Owen J.H.G., Bowler D.R., Renner Ch. (2013), One-dimensional silicon nanolines in the Si(001):H surface, in 7th International Workshop on Nano-scale Spectroscopy and Nanotechnology, ZurichAIP conference proceedings, USA.
Scalable Patterning of One-Dimensional Dangling Bond Rows on Hydrogenated Si(001)
Bianco François, Bowler David R., Owne James H.G., Köster Sigrun A., Longobardi Maria, Renner Christoph (2013), Scalable Patterning of One-Dimensional Dangling Bond Rows on Hydrogenated Si(001), in ACS Nano, 7(5), 4422-4428.
Degenerate electronic structure of reconstructed MnSi1.7 nanowires on Si(001)
Liu H. J., Owen J. H. G., Miki K. (2012), Degenerate electronic structure of reconstructed MnSi1.7 nanowires on Si(001), in Journal of Physics: Condensed Matter, 24, 095005-5.

Collaboration

Group / person Country
Types of collaboration
University College London Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. A. Morpurgo, University of Geneva Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
5th International Workshop on Bismuth-Containing Semiconductors Talk given at a conference Electronic structure of Bi nanolines and Haiku stripes on Si(001) 21.07.2014 Cork, Ireland Longobardi Maria;
SPS Meeting 2014 Poster Tantalum as a metallic contact for nanolines on Si(001) 30.06.2014 Fribourg, Switzerland Villarreal de la Fuente Renan; Longobardi Maria; Renner Christoph;
SPS Meeting 2014 Poster Electronic Structure of Bi nanolines on Si(001) 30.06.2014 Fribourg, Switzerland Renner Christoph; Longobardi Maria; Villarreal de la Fuente Renan;
March Meeting 2014 Poster Bi deposition on Si(001) 03.03.2014 Denver, United States of America Longobardi Maria; Villarreal de la Fuente Renan; Renner Christoph;
ICON 2013 Talk given at a conference Self-assembled model system to study 1D transport on the Si(001) surface 22.09.2013 Annecy, France Renner Christoph;
SWM2013 Poster Electronic Structure of Bismuth Nanolines on Si(001) 24.06.2013 Les Diablerets, Switzerland Bianco François; Longobardi Maria; Renner Christoph; Villarreal de la Fuente Renan;
SWM2013 Poster Scalable Patterning of One-Dimensional Dangling Bond Rows on Hydrogenated Si(001) 24.06.2013 Les Diablerets, Switzerland Renner Christoph; Bianco François; Villarreal de la Fuente Renan; Longobardi Maria;
APS March meeting Poster Scalable patterning of one-dimensional dangling bond chains on hydrogenated Si(001) surfaces 18.03.2013 Baltimore, United States of America Longobardi Maria;
Physics at the borderline between 1D and 2D Poster Self-assembled system to explore 1D physics on Si(001):H 13.02.2013 Bad Honef, Germany Bianco François; Renner Christoph;
FOR1162 International Workshop Individual talk Self-assembled model system on the Si(001) surface to explore 1D physics 01.10.2012 Würzburg, Germany Bianco François; Renner Christoph;
31st International Conference on the Physics of Semiconductors Poster One-dimensional silicon nanolines in Si(001):H surface 29.07.2012 Zürich, Switzerland Longobardi Maria; Bianco François; Renner Christoph;
7th International Workshop on Nano-scale Spectroscopy and Nanotechnology Talk given at a conference 1D Silicon nanolines in monohydride Si(001) surface 02.07.2012 Zürich, Switzerland Bianco François;
Annual meeting of the swiss physical society Poster 1D nanolines and single atom chains on Si(001) 21.06.2012 Zürich, Switzerland Bianco François; Renner Christoph; Longobardi Maria;
Annual meeting of German Physical Society Poster One-dimensional nanolines and atom chains on the Si(001) surface 26.03.2012 Berlin, Germany Renner Christoph; Bianco François;
APS March meeting Poster One-dimensional Si nanolines in hydrogenated Si(001) 27.02.2012 Boston, USA, United States of America Bianco François; Longobardi Maria; Renner Christoph;
Edgar Lüscher seminar Poster One-dimensional nanolines and atom chains on the Si(001) surface 04.02.2012 Klosters, Switzerland Bianco François; Renner Christoph;
Schweizerische Arbeitsgemeinschaft Oberflächen und Grenzflächen meeting Talk given at a conference Endotaxial Si nanolines in hydrogenated Si 27.01.2012 Fribourg, Switzerland Bianco François;
Physics in 1D Talk given at a conference The Haiku stripe, a new 1D model system 11.11.2011 Twente (Netherlands), Netherlands Renner Christoph;


Communication with the public

Communication Title Media Place Year
Media relations: radio, television Scanning tunneling microscopy Planète, Canal+ International 2013
Talks/events/exhibitions Débat Public: tous cobayes... des nanotechnologies Western Switzerland 2012
Talks/events/exhibitions Les propriétés de la matière au temps des nanotechnologie Western Switzerland 2012
Media relations: print media, online media Les propriétés de la matière aux dimensions atomiques Tribune de Genève Western Switzerland 2011

Awards

Title Year
epl best poster award, SPS meeting 2012 2012
Subside tremplin 2012

Associated projects

Number Title Start Funding scheme
153123 Transport properties and electronic structure of one-dimensional electronic systems 01.09.2014 Project funding (Div. I-III)
119978 Local electronic and magnetic properties of metal atomic chains 01.09.2008 Project funding (Div. I-III)

Abstract

The goal of this three year project is to explore exotic quantum phenomena that emerge in sol-ids approaching the limiting case of one dimension. The Fermi-liquid theory describing conventional bulk conductors breaks down in one-dimensional systems, which are predicted to be-have remarkably different. However, the unusual properties of the non-Fermi liquid counter-part, the Tomanaga-Luttinger liquid (TLL), remain largely untested by experiment due to the lack of a suitable model system for electronic systems. Our proposal is to take advantage of the Haiku stripe (HS), a novel self-assembled nanowire we have uncovered on the Si(001) surface during the precursor project (SNF grant 200021-119978), to explore the intrinsic physical properties of the ultimate one-dimensional model system - a single atom chain. The HS is a remarkable, perfectly straight and defect free silicon-in-silicon endotaxial nanoline that offers many unique features to realize this ambitious goal. Firstly, theory predicts a one dimensional electronic state above the conduction band minimum along the HS, which might well be a suit-able model system in its own right. Secondly, the HS is a promising template to self-assemble single-atom chains of selected species. It is stable in ultra high vacuum (UHV) up to 400°C and survives momentary exposure to air at room temperature. It can grow micrometer-scale long at a constant width of 1.5nm, long enough to allow electrical connections to lithographically defined metallic electrodes. Air stability and the prediction of subsurface absorption sites along the HS open the unprecedented prospect of self-assembling single-atom chains that can be taken for a moment out of the UHV environment for further processing and analysis. Moreover, the chains are expected to be electronically decoupled from the substrate, owing to the band gap of the semiconductor substrate. These are unique features, bringing transport measurements, electronic and magnetic characterizations of a single isolated nanowire, possibly a single-atom chain, within the realm of experimental scrutiny. In addition to fundamental 1D physics, we anticipate novel insight into magnetism in a non magnetic medium by structuring at the nanoscale, a very modern topic with great implications for spintronics.
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