Aktuelles
Publikation
Exploring in-plane interactions beside an adsorbed molecule with lateral force microscopy
Shinjae Nam, Elisabeth Riegel, Lukas Hörmann, Oliver T. Hofmann, Oliver Gretz, Alfred J. Weymouth and Franz J. Giessibl
Publikation
Electrochemical AFM/STM with a qPlus sensor: A versatile tool to study solid-liquid interfaces
Andrea Auer, Bernhard Eder, Franz J. Giessibl
J. Chem. Phys. 159, 174201 (2023)
Publikation
Energy dissipation of a carbon monoxide molecule manipulated using a metallic tip on copper surfaces
Norio Okabayashi, Thomas Frederiksen, Alexander Liebig, and Franz J. Giessibl
Phys. Rev. B 108, 165401 (2023)
Publikation
Dynamic Friction Unraveled by Observing an Unexpected Intermediate State in Controlled Molecular Manipulation
Norio Okabayashi, Thomas Frederiksen, Alexander Liebig, and Franz J. Giessibl
Phys. Rev. Lett. 131, 148001 (2023)
Award
Prof. Dr. Franz J. Gießibl erhält MRS "Innovation in Materials Characterization Award“ 2023
Der Physiker Prof. Dr. Franz J. Gießibl, der an der UR am Institut für Experimentelle und Angewandte Physik eine Professur für Rasterkraftmikroskopie innehat, wurde von der Materials Research Society (MRS) mit dem "Innovation in Materials Characterization Award“ ausgezeichnet.
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Publikation
Structural Characterization of Defects in the Topological Insulator Bi2Se3 at the Picometer Scale
Alexander Liebig, Christoph Setescak, Adrian Weindl and Franz J. Giessibl
J. Phys. Chem. C, 126, 21716-21722 (2022)
Publikation
From a free electron gas to confined states: A mixed island of PTCDA and copper phthalocyanine on Ag(111)
Alfred J. Weymouth, Emily Roche and Franz J. Giessibl
Beilstein J. Nanotechnol. 13,1572-1577 (2022)
Humboldt-Stipendiatin Dr. Andrea Auer forscht mittels Rastersondenmikroskopie
Publikation
Evidence for temporary and local transition of sp² graphite-type to sp³ diamond-type bonding induced by the tip of an atomic force microscope
Thomas P Hofmann, Xinguo Ren, Alfred John Weymouth, Daniel Meuer, Alexander Liebig, Andrea Donarini and Franz Josef Giessibl
New Journal of Physics, 24, 083018 (2022)
Mittelbayerische Zeitung
Gerhard Richters Band zu Regensburg
Der berühmte Künstler wird 90. Ein außergewöhnliches Geschenk kommt aus Regensburg: vom Nanowissenschaftler Franz Gießibl.
Ein Artikel von Marianne Sperb
Webinar
"First View inside an Atom"
Join us for a conversation with physicist
Franz J. Gießibl about his upcoming book on Art/Science collaboration with Gerhard Richter
moderated by James K. Gimzewski, FRS,
UCLA Art Science center scientific director
Wednesday, Feb 09, 2022, 10am PST, 1pm EST, 7pm CET
Zwei Forschende auf unterschiedlichen Gebieten
Neues Buch: UR-Professor berichtet von seiner Zeit mit Gerhard Richter
Publikation
Revealing buckling of an apparently flat monolayer of NaCl on Pt(111)
Alfred J. Weymouth, Mats Persson and Franz J. Giessibl
Phys. Rev. B 105,035412 (2022)
Publikation
Probing the Nature of Chemical Bonds by Atomic Force Microscopy
Franz J. Giessibl
Publikation
Determining amplitude and tilt of a lateral force microscopy sensor
Oliver Gretz, Alfred J. Weymouth, Thomas Holzmann, Korbinian Pürckhauer and Franz J. Giessibl
Beilstein J. Nanotechnol. 12, 517 (2021)
Publikation
Very weak bonds to artificial atoms formed by quantum corrals
Fabian Stilp, Andreas Bereczuk, Julian Berwanger, Nadine Mundigl, Klaus Richter, Franz J. Giessibl
Publikation
Edge channels of broken-symmetry quantum Hall states in graphene visualized by atomic force microscopy
Sungmin Kim, Johannes Schwenk, Daniel Walkup, Yihang Zeng, Fereshte Ghahari, Son T. Le, Marlou R. Slot, Julian Berwanger, Steven R. Blankenship, Kenji Watanabe, Takashi Taniguchi, Franz J. Giessibl, Nikolai B. Zhitenev, Cory R. Dean & Joseph A. Stroscio
Nature Communications 12, 2852 (2021)
Publikation
Biaxial atomically resolved force microscopy based on a qPlus sensor operated simultaneously in the first flexural and length extensional modes
Dominik Kirpal, Jinglan Qiu, Korbinian Pürckhauer, Alfred J. Weymouth, Michael Metz, and Franz J. Giessibl
Review of Scientific Instruments 92, 043703 (2021)
Publikation
Lateral Force Microscopy Reveals the Energy Barrier of a Molecular Switch
Alfred John Weymouth, Elisabeth Riegel, Bianca Simmet, Oliver Gretz, and Franz J. Giessibl
Publikation
Quantifying the evolution of atomic interaction of a complex surface with a functionalized atomic force microscopy tip
Alexander Liebig, Prokop Hapala, Alfred J. Weymouth, and Franz J. Giessibl
Scientific Reports 10, 14104 (2020)
Publikation
Combined atomic force microscope and scanning tunneling microscope with high optical access achieving atomic resolution in ambient conditions
Korbinian Pürckhauer, Simon Maier, Anja Merkel, Dominik Kirpal, and Franz J. Giessibl
Review of Scientific Instruments 91, 083701 (2020)
Alexander Liebig gewinnt Preis für gute Lehre im Sommersemester 2020
Publikation
Identifying the atomic configuration of the tip apex using STM and frequency-modulation AFM with CO on Pt(111)
O. Gretz, A. J. Weymouth, and F. J. Giessibl
Phys. Rev. Research 2, 033094 (2020)
Publikation
Achieving μeV tunneling resolution in an in-operando scanning tunneling microscopy, atomic force microscopy, and magnetotransport system for quantum materials research
Johannes Schwenk, Sungmin Kim, Julian Berwanger, Fereshte Ghahari, Daniel Walkup, Marlou R. Slot, Son T. Le, William G. Cullen, Steven R. Blankenship, Sasa Vranjkovic, Hans J. Hug, Young Kuk, Franz J. Giessibl, and Joseph A. Stroscio
Review of Scientific Instruments 91, 071101 (2020)
Nist - Atomic ‘Swiss Army Knife’ Precisely Measures Materials for Quantum Computers
Publikation
High-precision atomic force microscopy with atomically-characterized tips
Alexander Liebig, Angelo Peronio, Daniel Meuer, Alfred J. Weymouth, Franz J. Giessibl
New J. Phys. 22, 063040 (2020)
Publikation
Experimental use of the inflection point test for force deconvolution in frequency-modulation atomic force microscopy to turn an ill-posed situation into a well-posed one by proper choice of amplitude
Ferdinand Huber and Franz J. Giessibl
J. Appl. Phys. 127, 184301 (2020)
Publikation
Strumming a Single Chemical Bond
Alfred J. Weymouth, Elisabeth Riegel, Oliver Gretz, and Franz J. Giessibl
Phys.Rev.Lett. 124, 196101 (2020)
Publikation
Atomically Resolved Chemical Reactivity of Small Fe Clusters
Julian Berwanger, Svitlana Polesya, Sergiy Mankovsky, Hubert Ebert and Franz J. Giessibl
PhysRevLett. 124, 096001 (2020)
Alexander Liebig gewinnt Preis für gute Lehre im Wintersemester 2019/2020
Publikation
Radio frequency filter for an enhanced resolution of inelastic electron tunneling spectroscopy in a combined scanning tunneling- and atomic force microscope
Angelo Peronio, Norio Okabayashi, Florian Griesbeck, and Franz Giessibl
Review of Scientific Instruments 90, 123104 (2019)
Publikation
A Fourier method for estimating potential energy and lateral forces from frequency-modulation lateral force microscopy data
T. Seeholzer, O. Gretz, F. J. Giessibl and A. J. Weymouth
Publikation
Ion mobility and material transport on KBr in air as a function of the relative humidity
Dominik J. Kirpal, Korbinian Pürckhauer, Alfred J. Weymouth and Franz J. Giessibl
Beilstein J. Nanotechnol., 10, 2084–2093 (2019)
Publikation
Chemical bond formation showing a transition from physisorption to chemisorption
F. Huber, J. Berwanger, S. Polesya, S. Mankovsky, H. Ebert and F.
J. Giessibl
Science 366, 235 (2019)
freier Zugriff via epub
Publikation
Characterization of hydrogen plasma defined graphene edges
Mirko K.Rehmann, Yemliha B.Kalyoncu, Marcin Kisiel, Nikola Pascher, Franz J.Giessibl, Fabian Müller, Kenji Watanabe, Takashi Taniguchi, Ernst Meyer, Ming-Hao Liu, Dominik M.Zumbühl
22. NC-AFM in Regensburg
Preisträger Professor Baratoff (2. von links) mit einem aus Aluminium gefertigten Modell einer Siliziumoberfläche, welches auf vierzigmillionenfach vergrößerten experimentellen Kraftmikroskopiedaten beruht. Lokale Organisatoren Prof. Dr. F.J. Gießibl (links), Prof. Dr. J. Repp (2. von rechts), PD Dr. J. Weymouth (rechts)
140 Physiker aus der ganzen Welt treffen sich in Regensburg
Zwei offene Doktoranden - Stellen zu besetzen
Ag Giessibl1 Phd Position Lt1
Ag Giessibl2 Phd Position Lt2
Publikation
Analysis of Airborne Contamination on Transition Metal Dichalcogenides with Atomic Force Microscopy Revealing That Sulfur Is the Preferred Chalcogen Atom for Devices Made in Ambient Conditions
K. Pürckhauer, D. Kirpal, A. J. Weymouth and Franz J. Giessibl
ACS Appl. Nano Mater, 5(2), 2593 (2019)
Publikation
In-situ characterization of O-terminated Cu tips for high-resolution atomic force microscopy
A. Liebig, Franz J. Giessibl
Appl. Phys. Lett. 114, 143103 (2019)
Publikation
The qPlus sensor, a powerful core for the atomic force microscope
Franz J. Giessibl
Review of Scientific Instruments 90, 011101 (2019)
Publikation
Interatomic force laws that evade dynamic measurement
John E. Sader, Barry D. Hughes, Ferdinand Huber, Franz J. Giessibl
Nat. Nanotech. 13, 1088 (2018)
Publikation
Lateral manipulation of single iron adatoms by means of combined atomic force and scanning tunneling microscopy using CO-terminated tips
Julian Berwanger, Ferdinand Huber, Fabian Stilp, and Franz J. Giessibl
Phys. Rev. B 98, 195409 (2018)
Julian Berwanger gewinnt Poster-Preis auf NC-AFM 2018 in Porvoo (Finnland)
Publikation
Advances in AFM: Seeing Atoms in Ambient Conditions
Alfred J. Weymouth, Daniel Wastl, Franz J. Giessibl
Klausurtagung
Publikation
Low noise current preamplifier for qPlus sensor deflection signal detection in atomic force microscopy at room and low temperatures
Ferdinand Huber and Franz J. Giessibl
Rev. Sci. Instrum., 88, 073702 (2017)
Publikation
Non-contact lateral force microscopy
Alfred J. Weymouth
J. Phys.: Condens. Matter, 29, 323001 (2017)
Giessibl-group Alumni Treffen
Habilitationsvortrag von Jay Weymouth
Titel: "Investigating electrostatics and short-range interactions with atomic force microscopy"
Korbinian Pürckhauer erhält 2. Poster-Preis beim 2. German-French Summer School on NC-AFM in Osnabrück
Daniel Meuer gewinnt 3. Poster-Preis auf NC-AFM 2016 in Nottingham
30 Jahre Nobelpreis für Binnig & Rohrer, Focus Collection
Interview mit IOP über 30 Jahre AFM
We congratulate Gerd Binnig, Christoph Gerber and Calvin Quate on winning the 2016 Kavli Prize for Nanoscience
Publikation
Influence of atomic tip structure on the intensity of inelastic tunneling spectroscopy data analyzed by combined scanning tunneling spectroscopy, force microscopy, and density functional theory
Norio Okabayashi, Alexander Gustafsson, Angelo Peronio, Magnus Paulsson, Toyoko Arai, and Franz J. Giessibl
Phys. Rev. B, 93, 165415 (2016)
Prof. Dr. Franz J. Gießibl erhält Rudolf-Jaeckel-Preis von der Deutschen Vakuumgesellschaft
Publikation
Intramolecular Force Contrast and Dynamic Current-Distance Measurements at Room Temperature
F. Huber, S. Matencio, A. J. Weymouth, C. Ocal, E. Barrena, and F. J. Giessibl
Phys. Rev. Lett, 115, 066101 (2015)
Verteidigung von Matthias Emmrich
Titel: "Subatomare Auflösung auf Adatomen und kraftfeldabhängige laterale Manipulation mit einem eigenentwickelten Tieftemperatur-Rasterkraftmikroskop"
Gerhard Ertl Award
Dr. Jay Weymoth ist mit dem Gerhard Ertl Young Investigator Award 2015 geehrt worden. Der Preis wird seit 2010 vom Fachverband Oberflächenphysik der Deutschen Physikalischen Gesellschaft (DPG) an herausragende Nachwuchsforscherinnen und -forscher verliehen. Er ist nach Prof. Dr. Gerhard Ertl (Fritz-Haber-Institut Berlin) benannt, dem Chemie-Nobelpreisträger von 2007.
Publikation
Subatomic resolution force microscopy reveals internal structure and adsorption sites of small iron clusters
Matthias Emmrich, Ferdinand Huber, Florian Pielmeier, Joachim Welker, Thomas Hofmann, Maximilian Schneiderbauer, Daniel Meuer, Svitlana Polesya, Sergiy Mankovsky, Diemo Ködderitzsch, Hubert Ebert, Franz J. Giessibl
Science, DOI: 10.1126/science.aaa5329 (2015)
Publikation
Influence of matrix and filler fraction on biofilm formation
on the surface of experimental resin-based composites
Andrei Ionescu, Eugenio Brambilla, Daniel S. Wastl, Franz J. Giessibl, Gloria Cazzaniga, Sibylle Schneider-Feyrer, Sebastian Hahnel
J Mater Sci: Mater Med, DOI 10.1007/s10856-014-5372-4 (2015)
Verteidigung von Maximilian Schneiderbauer
Titel: "Aufbau eines Tieftemperatur-Ultrahochvakuum-Rasterkraftmikroskops und Messung elektrischer Multipolkräfte im Piconewton-Bereich"
Verteidigung von Florian Pielmeier
Titel: "Atomic Force Microscopy in the Picometer Regime - Resolving Spins and Non-Trivial Surface Terminations"
Publikation
Atomically Resolved Graphitic Surfaces in Air by Atomic Force Microscopy
Daniel S. Wastl, Alfred J. Weymouth and Franz J. Giessibl
ACS Nano, DOI: 10.1021/nn501696q (2014)
Prof. Dr. Franz J. Gießibl erhält bedeutende Auszeichnung der Amerikanischen Physikalischen Gesellschaft:
Joseph F. Keithley Award for Advances in Measurement Science 2014
Publikation
CO Tip Functionalization Inverts Atomic Force Microscopy Contrast via Short-Range Electrostatic Forces
Maximilian Schneiderbauer, Matthias Emmrich, Alfred J. Weymouth, and Franz J. Giessibl
What does a balloon sticking to a wall have in common with an atomic-scale insulator?
When we consider the interaction between atoms, we often think about the forming and breaking of chemical bonds that is best described with quantum mechanics. But electrostatic forces, like the ones responsible for sticking a balloon on a wall after you rub on your head, also play a role at the atomic scale. Salt, made up of sodium and chloride, is a great example of the importance of these forces. The sodium and chloride atoms have different charges that keep the salt crystal together. Nanotechnology is making use of these ionic materials at the atomic scale as an insulating layer – like the plastic coating of a wire. We used an atomic force microscope to investigate one of these materials – Copper with Nitrogen in it – at the atomic scale to see what role electrostatics plays. By picking up or putting down a molecule on the tip, we can change the charge at the end of the tip. We then simulated these two cases – with and without a molecule – using just the electrostatic interaction. The great agreement between our model and our data tell us how important these interactions are even at the scale of two atoms.
Phys. Rev. Lett. 112, 166102 (2014)
Verteidigung von Thomas Hofmann
Titel: "Hochauflösende Rasterkraftmikroskopie auf Graphen und Kohlenmonoxid"
Publikation
Impact of thermal frequency drift on highest precision force microscopy using quartz-based force sensors at low temperatures
Florian Pielmeier, Daniel Meuer, Daniel Schmid, Christoph Strunk and Franz J. Giessibl
Beilstein J. Nanotechnol., 5, 407–412 (2014)
Publikation
Chemical and Crystallographic Characterization of the Tip Apex in Scanning Probe Microscopy
Thomas Hofmann, Florian Pielmeier and Franz J. Giessibl
Phys. Rev. Lett. 112, 066101 (2014)
Interview about the field of nanotechnology
Franz J. Giessibl, Christoph Gerber, James K. Gimzewski
Publikation
Quantifying molecular stiffness and interaction with lateral force microscopy
Alfred J. Weymouth, Thomas Hofmann, Franz J. Giessibl
One of the most impressive atomic force microscopy (AFM) images was taken by Leo Gross and coworkers at IBM of a molecule showing every carbon-carbon bond within it [Gross et al, Science 325, 1110]. A key step was to functionalize the tip with a CO molecule, making the apex of the AFM tip small and chemically inert [Bartels et al, Appl. Phys. Lett., 71, 213]. However, this comes with a complication: The CO isn’t stiff but rather pivots when a horizontal force is applied. Moreover, standard experimental and theoretical approaches have not been able to characterize this torsional spring. We modified our AFM to be sensitive to lateral forces (LFM). As we measure forces along the surface, we are highly sensitive to short-range interactions. We combined both LFM and AFM data of a CO terminated tip probing a CO surface molecule, to determine the parameters of a simple model: two torsional springs interacting via a Morse potential.
Science, 343, 1120-1122 (2014)
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