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Proceedings Paper

Negative magnetoresistance behaviour and variable range hopping conduction in insulating NbSi amorphous alloys at very low temperature with magnetic field
Author(s): Abdelghani Sybous; Abdelhamid El Kaaouachi; Abdelfattah Narjis; Lhoussine Limouny; Said Dlimi; Gerard Biskupski
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Paper Abstract

We present results of an experimental study of magnetoresistance (MR) in insulating NbSi amorphous alloys sample showing Variable Range Hopping (VRH) conductivity ; The MR is found to be negative in a wide range of low temperature (4.2-20 K) and in the range of moderate magnetic fields (0-4 T). We made tentative analysis using three theoretical models which are the model of quantum interference, the model of Zeeman effect and the model of localized magnetic moments.

Paper Details

Date Published: 27 September 2012
PDF: 15 pages
Proc. SPIE 8459, Physical Chemistry of Interfaces and Nanomaterials XI, 84590X (27 September 2012); doi: 10.1117/12.924342
Show Author Affiliations
Abdelghani Sybous, Univ. Ibn Zohr (Morocco)
Abdelhamid El Kaaouachi, Univ. Ibn Zohr (Morocco)
Abdelfattah Narjis, Univ. Ibn Zohr (Morocco)
Lhoussine Limouny, Univ. Ibn Zohr (Morocco)
Said Dlimi, Univ. Ibn Zohr (Morocco)
Gerard Biskupski, Univ. des Sciences et Technologies de Lille (France)


Published in SPIE Proceedings Vol. 8459:
Physical Chemistry of Interfaces and Nanomaterials XI
Jenny Clark; Carlos Silva, Editor(s)

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