Graphene enhances the magnetoresistance of FeNi3 nanoparticles in hierarchical FeNi3-graphene nanocomposites

被引：17

作者：

Abellan, G. ^{[1
,2
,3
,4
]}

Prima-Garcia, H. ^{[1
]}

Coronado, E. ^{[1
]}

机构：

[1] Univ Valencia, Inst Ciencia Mol ICMol, Catedrat Jose Beltran 2, Paterna 46890, Spain

[2] Univ Erlangen Nurnberg, Dept Chem & Pharm, Henkestr 42, D-91054 Erlangen, Germany

[3] Univ Erlangen Nurnberg, Inst Adv Mat & Proc ZMP, Henkestr 42, D-91054 Erlangen, Germany

[4] Dr Mack Str 81, D-90762 Furth, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 11期

关键词：

GIANT MAGNETORESISTANCE; MAGNETOTRANSPORT; PRECURSORS; TRANSPORT; BEHAVIOR; NICKEL; MEMORY; FILMS;

D O I：

10.1039/c5tc04445f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An increase in the giant magnetoresistance of FeNi3 nanoparticles of 20 times has been observed in FeNi3-graphene nanocomposites synthesized using NiFe-layered double hydroxide hybrids as precursors. The magnetic, transport and magneto-transport properties of these nanocomposites are studied and compared with those of the pure FeNi3 nanoparticles. The hierarchical structure and hybrid composition of these magnetic nanocomposites lead to the observation of two unusual magneto-transport properties, namely (i) an enhancement in the low-field magnetoresistance effects, and (ii) a crossover from negative to positive MR upon cooling down the sample.

引用

页码：2252 / 2258

页数：7

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