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O: Fachverband Oberflächenphysik
O 64: Focus Session: Molecular Nanostructures on surfaces - New Concepts towards Complex Architectures IV
O 64.10: Vortrag
Mittwoch, 14. März 2018, 17:30–17:45, MA 004
Single molecule manipulation via inelastic electron tunneling — •Gitika Srivastava1, Tibor Kudernac2, Manfred Parschau1, Peter Stacko3, Bernard L. Feringa3, and Karl-Heinz Ernst1,4 — 1Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland — 2University of Twente, The Netherlands — 3Univeristy of Groningen, The Netherlands — 4University of Zürich, Switzerland
Maneuvering 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 tunneling from the tip of STM has been observed to have brought out subsequent dynamical processes on surfaces. We investigate the influence of inelastic electron tunneling on molecules with two functional unidirectional rotor units, comparable to the previously reported 4-wheeler as nano-car and have observed molecular motions like hopping and conformational changes. Results of single molecular dynamics of these molecules at low temperatures (6K) on Cu(111) surface are presented and discussed.