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ERC Consolidator Grant:
SARF (Single Atom Radio Frequency Fingerprinting),
2018 - 2023


 

Funded by: European Research Council (ERC)
Principal investigator: Stefan Müllegger
Duration: 2018 - 2023
see also: Fodok

About SARF

Precise investigation tools for analyzing and manipulating matter down to the scale of single atoms are the eyes, ears and fingers of nanoscience and -engineering. SARF takes these nano-analytical senses one next step beyond the present state of the art.

SARF is breaking new grounds by enabling spectral fingerprinting of single atoms for elemental identification and intra-molecular chemical analytics with sub-nanometer spatial resolution and operating in vacuum- as well as liquid-phase environments. This presently impossible combination of analytical capabilities simultaneously in a single tool is highly desirable to many diverse fields of nanoscience and -technology, where decisive functionality originates from single individual atoms and molecules (e.g. spintronics, sensorics, catalysis, medicinal drug development, surface physics, biology, etc.). SARF realizes resonance spectroscopy at giga-Hertz frequencies combined with scanning tunneling microscopy for specific single-atom fingerprinting. Characteristic resonance signals are locally detectable by the probe tip as small changes of conductance that indeed enable elemental and chemical identification. SARF conceives and develops single-atom fingerprinting on a manifold of different systems including magnetic and nonmagnetic metals, semiconductors and, exemplarily, tetrapyrrole-based metal-organic functional molecules.

If successful, SARF will provide a controlled, versatile, fast and readily applicable “atom-by-atom” matter analysis, where single atoms are selected and identified one by one in real time and space.

News, Presentations & Publications

2020-06-17 New publication: We have successfully characterized a  new molecular spin-1/2 model system by LT-STM, see: R. Vranik et al., Stable π-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) adsorbed at the elbows of \(22\times\sqrt{3}\)  reconstructed Au(111), Surf. Sci. 700, 121676 (2020). DOI: 10.1016/j.susc.2020.121676

2020-03-17 Laboratory work has to be discontinued due to Covid-19 crisis.

+++ DPG has been officially cancelled +++ 2020-03-16 Talk at DPG Frühjahrstagung in Dresden, Germany: R. Vranik, Electronic Properties of Stable Pi-Radicals Grown on Metal Substrates

2020-02-15 New face! Master student Stefan Steiner joins SARF team.

2019-11 Building of our new lab room ("206er") has finished. It waits for our new RFSTM system.

2019-10-09 S. Müllegger has invited Prof. Damien Riedel (University Paris-Saclay)  for talk at JKU Physics Colloquium: From Single molecule to molecular devices: Manipulation and excitation at the nanoscale

2019-09-16 Talk at ECMM in Firenze, Italy: S. Müllegger, Radio-frequency STM for mechanical resonance spectroscopy at the single-molecule level

2019-09-16 Poster at ECMM in Firenze, Italy: R. Vranik, Electronic Properties of Stable Pi-Radicals Grown on Metal Substrates

2019-09-09 Talk at SMOM workshop at JKU Linz, Austria: R. Vranik, Electronic Properties of Stable PI-Radicals Grown on Metal Substrates

2019-07-02 Talk at ICN+T in Malmö, Sweden: S. Müllegger, Radio-frequency STM for mechanical resonance spectroscopy at the single-molecule level

2019-05-01 New face! PostDoc Dr. Simon Feigl joins SARF team.

2019-03 Talk at STM workshop in Lednice, Czech Republic: R. Vranik, Radio-frequency scanning tunneling spectroscopy of helicene molecules on Ag(111)

2019-02 Poster at LIT Day at JKU Linz, Austria: S. Müllegger, Single-Atom Radio Frequency Fingerprinting

2019-01-18 Talk at LIOS at JKU Linz, Austria: S. Müllegger, Radio frequency signals from single atoms & molecules

2018-12-13 Talk at ICPS³ at JKU Linz, Austria: L. Haidinger, Towards Single Atom Identification

2018-12-13 Talk at ICPS³ at JKU Linz, Austria: D. Farka, Liquid Phase and EC-STM

2018-12-13 Talk at ICPS³ at JKU Linz, Austria: R. Vranik, Quantum Molecular Rotor

2018-11-26 Talk at JKU Linz, Austria: S. Müllegger, Radio frequency signals from single molecules: The 6th sense of scanning tunneling microscopy

2018-10-01 New face! PhD student M.Sc. Radovan Vranik joins SARF team.

2018-09-13 Talk at the 68th Annual Meeting of the Austrian Physical Society, Graz, Austria: V. Stetsovych, Resonant Excitation of Helicene Single Molecules by Radio-Frequency Scanning Tunneling Microscopy

2018-08-07 Poster at PASPS, Linz, Austria: L. Haidinger, Radio Frequency Scanning Tunneling Spectroscopy on Molecular Resonators

2018-07-27 Talk at ICN+T in Brno, Czech Republic: S. Müllegger, Radio-frequency scanning tunneling microscopy of helicene/Ag(111)

2018-06-05 Talk at University Leoben, Austria: S. Müllegger, Radio-frequency STM on molecular & atomic resonators

2018-05-15 Talk at Rotary Club, Bad Ischl, Austria: S. Müllegger, Experimente mit einzelnen Atomen und Molekülen

2018-05-15 New face! PostDoc Dr. Dominik Farka joins SARF team.

2018-05-01 New face! PostDoc, Dr. Vitalii Stetsovych joins SARF team.

 

Team

Stefan Müllegger (PI)

Vitalii Stetsovych

Simon Feigl

Radovan Vranik

Stefan Steiner

Join Us:

We are looking for proactive and enthusiastic students to join our SARF project team.

Please send your documents to stefan.muellegger@jku.at

Open positions:

  • 2 PhD positions on radio frequency scanning tunneling microscopy
  • 1 PostDoc position on radio frequency scanning tunneling microscopy