Biasing Circuitry for Tunnel Junctions
- 1 March 1970
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 41 (3) , 448-449
- https://doi.org/10.1063/1.1684540
Abstract
A method of generating bias has been developed which greatly facilitates studying the voltage‐current characteristics of tunnel junctions. A triangle wave to sweep the bias, a dc level for offset, and a small amplitude sine wave used for taking derivatives are all summed in a dc amplifier. The junction is biased by the attenuated output of this amplifier with either a high or low impedance load line. The two transistor circuits which largely comprise this bias supply are compact and battery powered, minimizing grounding problems.Keywords
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