Principle
Approaching a very sharp metal tip to an electrically conductive sample by applying a electrical field leads to a current between tip and sample without any mechanical contact. This so-called tunneling current is used to investigate the electronic top ...
Scanning tunneling microscopy is used to image the (electronic) topography of different samples on a nanoscopic scale. By scanning across the surface and using analyze tools atomic arrangements, charge density waves and defects are measured and evalua ...
Scanning tunneling microscopy is used to image the (electronic) topography of a freshly prepared graphite (HOPG) and gold surface. By spectroscopic measurements (I-z) the local effective work function can be determined in dependence of the material an ...
The tunneling current between a very sharp metal tip and an electrically conductive sample is used to investigate the current-voltage characteristics at a nanoscopic scale. The bandstructure of gold, graphite (HOPG) and MoS2 are investigated.
In addition to the tunneling effect measured by tunneling spectroscopy another quantum mechanical effect the charge density waves are investigated for different samples. Charge density waves are modulated electron waves due to static and periodic latt ...
Approaching a very sharp metal tip to anelectrically conductive sample byapplying a electrical field leads to acurrent between tip and sample withoutany mechanical contact. This so-calledtunneling current is used to investigatethe electronic topograph ...
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