Strain modulation of transport criticality in RuO2-based thick-film resistors

We show that in RuO2–glass composites the nonuniversal resistivity exponent can be modulated by an applied mechanical strain, signaled by a logarithmic divergence of the piezoresistive response at the percolation threshold. We interpret this phenomenon as being due to a tunneling-distance dependence of the transport exponent, supporting therefore a theory of transport nonuniversality proposed some years ago. © 2004 American Institute of Physics. [DOI: 10.1063/1.1835996]


Published in:
Applied Physics Letters, 85, 23, 5619-5621
Year:
2004
Keywords:
Note:
Variation de l’exposant de percolation par déformation mécanique.
Other identifiers:
Laboratories:




 Record created 2006-06-27, last modified 2018-11-16

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)