Dresden 2017 – wissenschaftliches Programm

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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 Ernst1,51Empa, 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.

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