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402-0545-00L 6 Credits MSC D-PHYS

Scanning Probe Techniques

Rastersensor-Methoden

Lecturers & Examiners: PD Hans von Känel
Does not take place this semester.
VVZ CR n/a

Last Updated: 2026-02-05 15:24:12

Abstract

The theoretical foundations of scanning tunneling microscopy and spectroscopy and their application to semiconducting and metallic surfaces are treated, as well as the relation between atomic forces and the tunnel effect, and the scanning force microscope. Ballistic electron emission microscopy is shown to provide an extension of the scanning tunneling microscope to the study of buried interfaces.

Objective

Understanding the theoretical basis of the scanning tunneling microscope. knowledge of the atomic and electronic structure of selected metal and semiconductor surfaces, quantum interference phenomena in thin metallic films, understanding the relation between atomic forces and electronic properties, understanding the basics of ballistic transport across interfaces between solids.

Content

Die Vorlesung behandelt die theoretischen Grundlagen der Rastertunnel-Mikroskopie und -Spektroskopie und ihre Anwendung auf halbleitende und metallische Oberflächen. Der Zusammenhang zwischen den atomaren Kräften und dem Tunneleffekt wird erläutert und das Atomkraft-Mikroskop besprochen. Eine Erweiterung des Rastertunnel-Mikroskops zur Untersuchung von vergrabenen Grenzflächen wird anhand der ballistischen-Elektronen-Emissions-Mikroskopie demonstriert.

Resources

Lecture Notes

A script in German will be distributed

General Information

Language
German
Levels
MSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
oral 20 minutes

Course Components

Type Title Time & Place Hours
lecture Rastersensor-Methoden
Does not take place this semester.
No time listed 2 h weekly
exercise Rastersensor-Methoden
Does not take place this semester.
  • By Appointment None-None
1 h weekly

Offered In