Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2002-03-27
Physics
Condensed Matter
Disordered Systems and Neural Networks
3 pages, 2 eps figures
Scientific paper
The piezoresistive response of granular metals under uniaxial strain is strongly dependent on the concentration of the conducting phase. Here we show that the piezoresistive anisotropy is reduced as the system approaches its percolation thresold, following a power law behavior in the critical region. We propose a simple relation between the conductance and the piezoresistive anisotropy which could be used in relation to real materials and notably to the thick film resistors.
Grimaldi Claudio
Ryser Peter
Straessler Sigfrid
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