SKM 2023 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 45: Focus Session: Scanning Probe Microscopy with Quartz Sensors I

Mittwoch, 29. März 2023, 10:30–12:30, CHE 89

Atomic Force Microscopy (AFM) was quickly adopted in science and engineering, but it took a while until the field of surface could benefit from it. 2023 marks the 25th anniversary of the introduction of the qPlus sensor. This stiff and self sensing force sensor made from quartz that often uses an etched metal tip as known from scanning tunneling microscopy (STM) replaced the silicon cantilever and allowed new types of experiments and new domains of precision. Scientists used it to resolve the structure of organic molecules with atomic resolution, to obtain subatomic spatial resolution, to image spin structures and spin lifetimes, to measure lateral forces, to detect tiny water molecules, to image oxides and other insulating surfaces with atomic resolution. Operation in ambient conditions, ultrahigh vacuum (UHV), low (4 K) and ultralow temperatures (10 mK) and in high magnetic fields as well as in an electrochemical cell was demonstrated.

Organizer: Franz Giessibl (U Regensburg)

10:30 O 45.1 The genesis of the qPlus sensor — •Franz Giessibl
10:45 O 45.2 Topical Talk: Single-molecule reactions performed and characterized using atomic force microscopy — •Leo Gross
  11:15 O 45.3 The contribution has been withdrawn.
11:30 O 45.4 A two dimensional array of radical molecules on Pb(111)Jung-Ching Liu, Chao Li, H. Chen, Ping Zhou, Xunshan Liu, Ulrich Aschauer, Silvio Decurtins, Shi-Xia Liu, Wulf Wulfhekel, Ernst Meyer, and •Rémy Pawlak
11:45 O 45.5 Self-Assembly Study of 1,2,10,11,12,14-hexafluoropentacene on a Au(111) surface by HR-AFM — •Miguel Wiche, Maximilian Dreher, André Schirmeisen, Gregor Witte, and Daniel Ebeling
12:00 O 45.6 On-surface synthesis of PAHs by strain and the concerted motion of adatoms. — •Benjamin Mallada, Bruno de la Torre, Jesus I. Mendieta-Moreno, Adam Matej, Mikulas Matousek, Jiri Brabec, Libor Veis, Timothee Cadart, Martin Kotora, and Pavel Jelinek
12:15 O 45.7 Monitoring of molecular configurations in SPM-based molecular manipulationJoshua Scheidt, Alexander Diener, Michael Maiworm, Klaus-Robert Müller, Rolf Findeisen, Kurt Driessens, F. Stefan Tautz, and •Christian Wagner
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