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Institute of Semiconductor and Solid State Physics
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Professor Stefan Müllegger

Assoc. Prof. Dr. Stefan Müllegger
Head of RF-Nanospectroscopy Group.

Deputy Head of the Department of Solid State Physics.

Curriculum Vitae

Full professor, Solid State Physics Division, JKU Linz.

Habilitation (venia docendi) in experimental physics. Associate Professor, Johannes Kepler University Linz, Austria.

Assistant Professor, Solid State Physics Division, Johannes Kepler University Linz, Austria.

University Assistant, Solid State Physics Division, Johannes Kepler University Linz, Austria.

Research employee, Borealis Polyolefine GmbH, Linz, Austria.

PhD (Dr. techn.) in Technical Physics, Graz University of Technology, Austria. Thesis: “Adsorption and Thin Film Growth of Oligo-phenylenes on Gold Surfaces”

Master (Diplom-Ingenieur) in Technical Physics, Graz University of Technology, Austria. Thesis: “Investigations on the Operational Stability and Performance Improvement of Blue Light Emitting Organic Thin Film Devices”.

My research group

I am constantly looking for proactive and enthusiastic students to join my group.

I offer various possibilities for conducting bachelor, master or PhD thesis.

At your request I am able to offer flexible working conditions and multidisciplinary topics.

If you think you fit into my group, please don't hesitate to send further inquiries to stefan.muellegger@jku.at

You find all present job vacancies at the job portal Euraxess, opens an external URL in a new window. Search for "JKU" and "STM". Voila!

My present research focuses on


● Radio Frequency Scanning Tunneling Spectroscopy (rf-STS)
● Molecule-Based Hybrid Nanostructures
● Experimental Nanophysics

My ongoing Projects

Wissenschaftsförderung des Landes Oberösterreich für das Projekt "Single Atom Radio Frequency Fingerprinting" (SARF)
Funded by Land Oberösterreich,
Duration: 2019-2023.

ERC, opens an external URL in a new window Consolidator Grant
Funded by: European Research Council (ERC)
Title: Single Atom Radio Frequency Fingerprinting (SARF)
Principal investigator: Stefan Müllegger
Duration: 1.4.2018 - 30.9.2024

LIT, opens in new window Advanced Project, LIT-2016-1-ADV-002
Funded by: Linz Institute of Technology (LIT),
Title: "Single-atom radio frequency fingerprinting"
Principal investigator: Stefan Müllegger
Duration: 2017 - 2019
Link to Fodok, opens an external URL in a new window

FWF, opens an external URL in a new window & DFG Joint Project, DACH i958 Project webpage
Funded by: Austrian Science Fund (FWF)
Title: High‐Valent Metal Tetrapyrroles for Surface‐Supported Catalysis
Principal investigator: Stefan Müllegger
Duration: 2013 - 2017. (Finished)
Link to Fodok, opens an external URL in a new window

More

FWF, opens an external URL in a new window Single Project, P20773
Funded by: Austrian Science Fund (FWF)
Title: ESR-STM of Organic Nano-Adsorbates on Silicon
Co-Investigator: Stefan Müllegger
Duration: 2008 - 2013. (Finished)
Link to Fodok, opens an external URL in a new window

Publications

B. Wit, R. Vranik and S. Müllegger, Enhanced conductance response in radio frequency scanning tunnelling microscopy, Sci. Rep. 12, 6183 (2022). doi.org/10.1038/s41598-022-09820-7, opens an external URL in a new window

V. Stetsovych, S. Feigl, R. Vranik, B. Wit, E. Rauls, J. Nejedlý, M. Šámal, I Starý and S. Müllegger, Towards dielectric relaxation at a single molecule scale, Sci. Rep. 12, 2865 (2022).  dx.doi.org/10.1038/s41598-022-06684-9, opens an external URL in a new window

S. Grall, I. Alic, E. Pavoni, M. Awadein, T. Fujii, S. Müllegger, M. Farina, N. Clement, and G. Gramse, Attoampere Nanoelectrochemistry. Small (2021): DOI: 10.1002/smll.202101253, opens an external URL in a new window

S. Feigl, R. Vranik B. Wit, and S. Müllegger, Frequency-independent voltage amplitude across a tunnel junction.  Rev. Sci Instr. 92, 043710 (2021). https://doi.org/10.1063/5.0035388, opens an external URL in a new window

R. Vranik, V. Stetsovych, S. Feigl, and S. Müllegger, 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, opens an external URL in a new window

S. Gonglach, S. Paul, M. Haas, F. Pillwein, S.Sreekumar, S. Barman, R. De, S. Müllegger, P. Gerschel, U.-P. Apfel, H. Coskun, A. Aljabour, P. Stadler,  W. Schöfberger, and S. Roy, 
Molecular Cobalt Corrole Complex for the Heterogeneous Electrocatalytic Reduction of Carbon Dioxide, Nature Communications 10, 3864 (2019). DOI: 10.1038/s41467-019-11868-5, opens an external URL in a new window

S. Müllegger, M. Rashidi, W. Schöfberger, and R. Koch,
Single-molecule chemical reduction induced by low-temperature scanning tunneling microscopy: a case study of Gold-porphyrin on Au(111), Surf. Sci. 678, 157-162 (2018). DOI: 10.1016/j.susc.2018.04.018, opens an external URL in a new window

M. Haas, S. Gonglach, S. Müllegger, and W. Schöfberger,
Synthesis and characterization of meso-substituted A2B corroles with extended pi-electronic structure, Monatsh. Chem. 149, 773-781 (2018). DOI: 10.1007/s00706-017-2114-6, opens an external URL in a new window

H. Aldahhak, M. Paszkiewicz, E. Rauls, F. Allegretti, S. Tebi, A. C. Papageorgiou, Y.-Q. Zhang, L. Zhang, T. Lin, T. Paintner, R. Koch, W. G. Schmidt, J. V. Barth, W. Schöfberger, S. Müllegger, F. Klappenberger, and U. Gerstmann,
Identifying on-surface site-selective chemical conversions by theory-aided NEXAFS spectroscopy: The case of free-base corroles on Ag(111), Chem. Eur. J. 24, 6787-6797 (2018). DOI: 10.1002/chem.201705921, opens an external URL in a new window

G. Serrano, S. Tebi, S. Wiespointner-Baumgarthuber, S. Müllegger, and R. Koch,
Radio frequency surface plasma oscillations: electrical excitation and detection by Ar/Ag(111), Sci. Rep. 7, 9708 (2017). http://dx.doi.org/10.1038/s41598-017-10170-y, opens an external URL in a new window

R. Koch and S. Müllegger,
Mechanical and Magnetic Single-Molecule Excitations by Radio-Frequency Scanning Tunneling Microscopy, Molecular Architectonics, Ed. T. Ogawa, pp 187-218, Springer International Publishing, 2017; DOI: 10.1007/978-3-319-57096-9_9, opens an external URL in a new window

S. Tebi, M. Paszkiewicz, H. Aldahhak, F. Allegretti, S. Gonglach, M. Haas, M. Waser, P. S. Deimel, P. C. Aguilar, Y.-Q. Zhang, A. C. Papageorgiou, D. A. Duncan, J. V. Barth, W. G. Schmidt, R. Koch, U. Gerstmann, E. Rauls, F. Klappenberger, W. Schöfberger, and S. Müllegger,
On-surface site-selective cyclization of corrole radicals, ACS Nano, 11, 3383-3391 (2017); DOI: 10.1021/acsnano.7b00766, opens an external URL in a new window

H. Aldahhak, M. Paszkiewics, F. Allegretti, D. A. Duncan, S. Tebi, P. S. Deimel, P. Casado Aguilar, Y. Zhang, A. C. Papageorgiou, R. Koch, J. V. Barth, W. G. Schmidt, S. Müllegger, W. Schöfberger, F. Klappenberger, E. Rauls, and U. Gerstmann,
X-Ray spectroscopy of thin film free-base corroles - a combined theoretical and experimental characterization, J. Phys. Chem. C 121, 2192-2200 (2017); DOI: 10.1021/acs.jpcc.6b09935, opens an external URL in a new window

G. Serrano, S. Tebi, S. Wiespointner-Baumgarthuber, S. Müllegger, and R. Koch,
Radio-frequency surface plasma oscillations: electrical excitation and detection by Ar/Ag(111). DOI: 10.1038/s41598-017-10170-y, opens an external URL in a new window

G. Serrano, S. Wiespointner-Baumgarthuber, S. Tebi, S. Klyatskaya, M. Ruben, R. Koch, and S. Müllegger,
Bilayer of Terbium Double-Decker Single-Molecule Magnets, J. Phys. Chem. C, 120, 13581-13586 (2016); DOI: 10.1021/acs.jpcc.6b03676, opens an external URL in a new window

W. Schöfberger, F. Faschinger, S. Chattopadhyay, S. Bhakta, B. Mandal, J. A. A. W. Elemans, S. Müllegger, S. Tebi, R. Koch, F. Klappenberger, M. Paszkiewicz, J. Barth, E. Rauls, H. Aldahhak, W. G. Schmidt, and A. Dey,
Development of a bi-functional electro-catalyst for oxygen evolution and oxygen reduction reactions in water, Angew. Chem. Int. E. 55, 2350--2355 (2016); dx.doi.org/10.1002/anie.201508404, opens an external URL in a new window

S. Müllegger, E. Rauls, U. Gerstmann, S. Tebi, G. Serrano, S. Wiespointner-Baumgarthuber, W. G. Schmidt, and R. Koch,
Mechanism for nuclear and electron spin excitation by radio frequency current, Phys. Rev. B 92, 220418(R) (2015); DOI: dx.doi.org/10.1103/PhysRevB.92.220418, opens an external URL in a new window

S. Tebi, H. Aldahhak, G. Serrano, W. Schöfberger, E. Rauls, W. G. Schmidt, R. Koch, and S. Müllegger,
Manipulation resolves non-trivial structure of corrole monolayer on Ag(111), Nanotechnology 27, 025704 (2016); DOI: 10.1088/0957-4484/27/2/025704, opens an external URL in a new window

Armin Guntner, Felix Faschinger, Stefan Aichhorn, Stefan Müllegger, and Wolfgang Schöfberger,
Observation of high-valent manganese(V)-corrole complexes during metalation of meso-functionalized A3-corroles under aerobic conditions, Synlett 26, 2015; DOI: 10.1055/s-0034-1378819, opens an external URL in a new window

S. Müllegger, S. Tebi, A.K. Das, W. Schöfberger, F. Faschinger, and R. Koch,
Radio Frequency Scanning Tunneling Spectroscopy for Single-Molecule Spin Resonance, Phys. Rev. Lett. 113, 133001 (2014); DOI: http://dx.doi.org/10.1103/PhysRevLett.113.133001, opens an external URL in a new window

S. Müllegger and R. Koch,
Molekülketten als kleinste mechanische Resonatoren, Physik unserer Zeit 45, 162-163 (2014); DOI: 10.1002/piuz.201490059, opens an external URL in a new window

S. Müllegger, M. Rashidi, K. Mayr, M. Fattinger, A. Ney and R. Koch,
Radio-wave oscillations of molecular-chain resonators, Featured article. , opens an external URL in a new windowPhys. Rev. Lett. 112 (2014) 117201; doi: 10.1103/PhysRevLett.112.117201;, opens an external URL in a new window Selected for a viewpoint in Physics; doi: 10.1103/Physics.7.26,, opens an external URL in a new window

S. Müllegger, A. K. Das, K. Mayr and R. Koch,
Radio-Frequency Excitation of Single Molecules by Scanning Tunnelling Microscopy, Nanotechnology, 25 (2014) 135705; doi:10.1088/0957-4484/25/13/135705, opens an external URL in a new window

S. Müllegger, M. Rashidi, M. Fattinger and R. Koch,
Surface-Supported Hydrocarbon π Radicals Show Kondo Behavior, J. Phys. Chem. C, 2013, 117 (11), pp 5718–5721; DOI: 10.1021/jp310316b, opens an external URL in a new window

S. Müllegger, M. Rashidi, M. Fattinger and R. Koch,
Interactions and Self-Assembly of Stable Hydrocarbon Radicals on a Metal Support, J. Phys. Chem. C 116, 22587−22594, 2012; DOI: 10.1021/jp3068409, opens an external URL in a new window

M. Rashidi, S. Müllegger, M. Roithner, W. Schöfberger and R. Koch,
Spectroscopic Scanning Tunneling Microscopy Studies of Single Surface-Supported Free-Base Corroles, J. Am. Chem. Soc. 134, 91-94 (2012); DOI: 10.1021/ja209225f, opens an external URL in a new window

S. Müllegger, W. Schoefberger, M. Rashidi, T. Lengauer, F. Klappenberger, K. Diller, K. Kara, J. V. Barth, E. Rauls, W. G. Schmidt and R. Koch,
Preserving Charge and Oxidation State of Au(III) Ions in an Agent-Functionalized Nanocrystal Model System, ACS Nano 5, 6480 (2011). DOI: 10.1021/nn201708c, opens an external URL in a new window

S. Müllegger, M. Rashidi, T. Lengauer, E. Rauls, W.G. Schmidt, G. Knör, W. Schöfberger and R. Koch,
Asymmetric saddling of single porphyrin molecules on Au(111), Phys. Rev. B 83, 165416 (2011). DOI: 10.1103/PhysRevB.83.165416, opens an external URL in a new window

S. Müllegger, W. Schöfberger, M. Rashidi, L. M. Reith and R. Koch,
Spectroscopic STM Studies of Single Gold(III) Porphyrin Molecules, J. Am. Chem. Soc. 131 (2009) 17740-17741. DOI: 10.1021/ja908157j, opens an external URL in a new window

Collaborations

Mario Ruben, opens an external URL in a new window, Karlsruhe Institute of Technology (KIT), Germany.

● Wolfgang Schöfberger, Institute of Organic Chemistry, opens an external URL in a new window, Johannes Kepler Univeristy Linz, Austria.

Wolf Gero Schmidt and Uwe Gerstmann, opens an external URL in a new window, Festkörperptheorie, Department Physik, Universität Paderborn, Germany.

Johannes Barth, opens an external URL in a new window and Florian Klappenberger, Physik Department, Technische Universität München, Germany.

Yishay Manassen, opens an external URL in a new window, Department of Physics, Ben Gurion University of the Negev

● Eva Rauls, Department of Mathematics and Natural Science, University of Stavanger, Norway.

 

My Teaching

I offer the following courses in English and/or German language:

322.001, Physik der kondensierten Materie, English or German.

322.122, Nanoelektronik, English or German.

322.245, Magnetometrie, English or German.

322.200, Grundlagen der Physik II (Elektrizität und Magnetismus), German.

322.223, Besprechung neuerer Arbeiten aus Festkörperphysik, English or German.

322.121, Ausgewählte Kapitel aus Nanoscience: Magnetresonanz, German.

Further details, see JKU's KUSSS, opens an external URL in a new window.