Two-frequency AC bridge for tunnelling spectroscopy
Autor: | W Trottmann, G Fischer |
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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 |
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