Article
Evaluation of the transient potential drop of a four-point probe
Appl. Phys. Lett.
(2011)
Abstract
The time-dependent voltage across the pick-up electrodes of a four point probe has been determined analytically for a transient current pulse injected into a thick conductive plate modeled as a half-space. This is a step towards analyzing more complex transient four point probe signals from measurements on inhomogeneous conductors. Potential applications include the evaluation of depth-dependent conductivity profiles in metals and semiconductors. The analysis of homogeneous conductors shows how the signals are characterized by a time constant of the drive current and additional time constants dependent on the electromagnetic material properties and electrode spacings
Keywords
- four point probe,
- transient field,
- potential drop
Disciplines
Publication Date
2011
Citation Information
John R. Bowler. "Evaluation of the transient potential drop of a four-point probe" Appl. Phys. Lett. Vol. 98 (2011) Available at: http://works.bepress.com/john_bowler/14/