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Magneto-piezoresistance in elastomagnetic composites

Journal of Applied Physics, ISSN: 0021-8979, Vol: 110, Issue: 6
2011
  • 23
    Citations
  • 0
    Usage
  • 18
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Metrics Details

  • Citations
    23
    • Citation Indexes
      23
  • Captures
    18

Article Description

Ni microparticles were homogeneously dispersed into a silicone matrix preventing their direct contact even at volume fractions near the percolation threshold. In this condition, owing to the co-presence of elastomagnetic and piezoresistive effects, a moderate gradient of an external magnetizing field induces an electron conduction increment higher than 60% in Ni-silicone elastomagnetic composites. This demonstrates a peculiar kind of magnetoresistance mechanism that we define as "magneto- piezoresistance". Theoretical predictions and validating experiments of this effect are reported. Owing to its innovative nature and potential improvements, the magneto-piezoresistance opens new perspectives for the elastomagnetic composites application in microdevices such as atomic force microscope tips and magnetic lecture heads. © 2011 American Institute of Physics.

Bibliographic Details

Luciano Lanotte; Giovanni Ausanio; Vincenzo Iannotti; Cornelia L. Hison; Luca Lanotte

AIP Publishing

Physics and Astronomy

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