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O: Fachverband Oberflächenphysik

O 110: Molecular Films: Morphology, Electronics, Photovoltaics

O 110.4: Vortrag

Freitag, 24. März 2017, 11:30–11:45, GER 38

Single molecule manipulation via inelastic electron tunneling — •Gitika Srivastava¹, Tibor Kudernac², Manfred Parschau¹, Peter Stacko³, Natsuki Ito⁴, Takashi Hirose⁴, Kenji Matsuda⁴, Bernard Lucas Feringa³, and Karl-Heinz Ernst^1,5 — ¹Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland — ²University of Twente, The Netherlands — ³Univeristy of Groningen, The Netherlands — ⁴Kyoto University, Japan — ⁵University of Zürich, Switzerland

Manoeuvring individual molecules over a clean and unmodified surface is challenging, yet possible using surface sensitive techniques like Scanning Tunneling Microscopy (STM). Electronic and vibrational excitation by means of inelastic electron tunnelling from the tip of STM has been observed to have brought out subsequent dynamical processes on surfaces. We investigate the influence of inelastic electron tunnelling on helical molecules and have observed molecular motions like hopping and rotation. First results of single molecular dynamics of these molecules at low temperatures (7K) on Cu(111) and Au(111) surfaces are presented and discussed. In addition, we present latest results on molecular machines, a topic that has been awarded the Chemistry Nobel Prize in 2016.