http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280966
Optimization of the coupling between piezoresistivity and magnetoelasticity in an elastomagnetic composite to sense a spatial gradient of the magnetic field (Articolo in rivista)
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- Optimization of the coupling between piezoresistivity and magnetoelasticity in an elastomagnetic composite to sense a spatial gradient of the magnetic field (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1140/epjb/e2012-30657-1 (literal)
- Alternative label
Ausanio, G.a , Iannotti, V.a, Lanotte, L.b, Lanotte, L.a (2013)
Optimization of the coupling between piezoresistivity and magnetoelasticity in an elastomagnetic composite to sense a spatial gradient of the magnetic field
in The European physical journal. B, Condensed matter physics (Print)
(literal)
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- Ausanio, G.a , Iannotti, V.a, Lanotte, L.b, Lanotte, L.a (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84878473366&partnerID=q2rCbXpz (literal)
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- a CNR-SPIN, Department of Physical Sciences, Federico II University of Naples, p.le V.Tecchio 80, 80125 Naples, Italy
b Department of Chemical Engineering, Federico II University of Naples, p.le V. Tecchio 80, 80125 Naples, Italy (literal)
- Titolo
- Optimization of the coupling between piezoresistivity and magnetoelasticity in an elastomagnetic composite to sense a spatial gradient of the magnetic field (literal)
- Abstract
- Elastomagnetic samples made of quasi-ellipsoidal nickel microparticles separated by a thin silicone layer were produced. A static magnetic field was applied during the process of sample solidification, obtaining a preferred orientation of the particles major axis through the coupling of the magnetic moment with the easy magnetization axis. The influence of the particle pre-orientation on the elasticity, piezoresistivity and magneto-piezoresistivity were investigated and discussed in order to maximize the resistance change due to a moderate magnetic field gradient, in view of conceiving an innovative core material for sensor devices. It was shown as the relative change of resistance induced by a low magnetic field gradient can be improved of over 15% in comparison with previous results, approaching an absolute value of the magneto-piezoresistive ratio equal to 80%. Since a local magnetic field change can be also produced by a displacement of a magnetic body, in perspective the effect can be applied for sensing position or mechanical vibration too. © 2013 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg. (literal)
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