Two-frequency AC bridge for tunnelling spectroscopy

Autor: W Trottmann, G Fischer
Rok vydání: 1979
Předmět:
Zdroj: Journal of Physics E: Scientific Instruments. 12:1159-1162
ISSN: 0022-3735
DOI: 10.1088/0022-3735/12/12/013
Popis: The bridge supply yields a voltage which consists of two sinusoidal voltages of different frequencies. Due to frequency mixing, signals arise which allow the detection of nonlinear terms dnI/dUn in the current-voltage characteristics of tunnel junctions. Examples of measurements up to d3I/dU3 are presented.
Databáze: OpenAIRE