Giant magnetoresistance in the cluster glass regime of Co-Ga alloys

Giant magnetoresistance in the cluster glass regime of Co-Ga alloys

A detailed study of low temperature electrical transport properties of CoxGa100−x (x = 54, 55.5, 57) alloy has been carried out. The origin of the resistivity anomalies and correlation between magnetic and electrical transport properties are identified through an elaborate analysis. The weak localiz...

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Main Authors: Sk Mohammad Yasin, Ritwik Saha, V. Srinivas, S. Kasiviswanathan, A. K. Nigam
Format: Article
Language:English
Published: AIP Publishing LLC 2016-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4943609
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spelling doaj-9a259b24bf424853b25cf07b13e8c4482020-11-24T22:32:14ZengAIP Publishing LLCAIP Advances2158-32262016-05-0165055815055815-610.1063/1.4943609088691ADVGiant magnetoresistance in the cluster glass regime of Co-Ga alloysSk Mohammad Yasin0Ritwik Saha1V. Srinivas2S. Kasiviswanathan3A. K. Nigam4Department of Physics, Indian Institute of Technology Madras, Chennai 600 036, IndiaDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400 005, IndiaDepartment of Physics, Indian Institute of Technology Madras, Chennai 600 036, IndiaDepartment of Physics, Indian Institute of Technology Madras, Chennai 600 036, IndiaDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400 005, IndiaA detailed study of low temperature electrical transport properties of CoxGa100−x (x = 54, 55.5, 57) alloy has been carried out. The origin of the resistivity anomalies and correlation between magnetic and electrical transport properties are identified through an elaborate analysis. The weak localization and enhanced electron-electron interaction effects partially support the electrical transport properties of the system. Further, the observed magnetoresistance can be well represented by localized model along with quantum corrections. The low temperature magnetoresistance value near critical composition is comparable to that reported in giant magnetoresistance materials.http://dx.doi.org/10.1063/1.4943609
collection DOAJ
language English
format Article
sources DOAJ
author Sk Mohammad Yasin
Ritwik Saha
V. Srinivas
S. Kasiviswanathan
A. K. Nigam
spellingShingle Sk Mohammad Yasin
Ritwik Saha
V. Srinivas
S. Kasiviswanathan
A. K. Nigam
Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
AIP Advances
author_facet Sk Mohammad Yasin
Ritwik Saha
V. Srinivas
S. Kasiviswanathan
A. K. Nigam
author_sort Sk Mohammad Yasin
title Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
title_short Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
title_full Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
title_fullStr Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
title_full_unstemmed Giant magnetoresistance in the cluster glass regime of Co-Ga alloys
title_sort giant magnetoresistance in the cluster glass regime of co-ga alloys
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2016-05-01
description A detailed study of low temperature electrical transport properties of CoxGa100−x (x = 54, 55.5, 57) alloy has been carried out. The origin of the resistivity anomalies and correlation between magnetic and electrical transport properties are identified through an elaborate analysis. The weak localization and enhanced electron-electron interaction effects partially support the electrical transport properties of the system. Further, the observed magnetoresistance can be well represented by localized model along with quantum corrections. The low temperature magnetoresistance value near critical composition is comparable to that reported in giant magnetoresistance materials.
url http://dx.doi.org/10.1063/1.4943609
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AT ritwiksaha giantmagnetoresistanceintheclusterglassregimeofcogaalloys
AT vsrinivas giantmagnetoresistanceintheclusterglassregimeofcogaalloys
AT skasiviswanathan giantmagnetoresistanceintheclusterglassregimeofcogaalloys
AT aknigam giantmagnetoresistanceintheclusterglassregimeofcogaalloys
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