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1. Influence of contact's width on the resistance measurement and resistivity anisotropy determination method for an anisotropic circular disk

Author

A. Nader and Omran Kouba

Subjects
Work (thermodynamics), Nuclear magnetic resonance, Materials science, Condensed matter physics, Electrical resistance and conductance, Electrical resistivity and conductivity, Position (vector), Contact resistance, General Physics and Astronomy, Current (fluid), Anisotropy
Abstract

It is shown in this work that the electric resistance expression for an anisotropic circular disk diverges if a finite dimension is assumed for a current contact and if the position of this contact approaches the axis of the least resistivity. Accordingly, the optimal position of the current contacts is along the axis of the highest resistivity. This expression is mainly used to determine the resistivity anisotropy; a new contacts configuration for the resistivity anisotropy determination is suggested.

Published
2014
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