GMR and Kondo Effects in Cu-Co Microwires

被引：3

作者：

Zhukova, V. ^{[1
,2
]}

Mino, J. ^{[1
,3
]}

Del Val, J. J. ^{[1
]}

Ipatov, M. ^{[1
,2
]}

Varga, R. ^{[3
]}

Baibich, M. N. ^{[4
]}

Martinez, G. ^{[4
]}

Granovsky, A. ^{[5
]}

Zhukov, A. ^{[1
,2
,6
]}

机构：

[1] Univ Basque Country, Fac Quim, Dept Fis Mat, San Sebastian 20018, Spain

[2] Univ Basque Country, EUPDS, Dept Fis Aplicada, San Sebastian 20018, Spain

[3] UPJS, Inst Phys, Fac Sci, Pk Angelinum 9, Kosice 04154, Slovakia

[4] Univ Fed Rio Grande do Sul, Inst Fis, CP 15051, BR-91501970 Porto Alegre, RS, Brazil

[5] Moscow State Lomonosov Univ, Moscow, Russia

[6] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao, Spain

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2017年 / 30卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

Magnetic microwires; Giant magnetoresistance; Kondo effect; Granular alloy; GLASS-COATED MICROWIRES; GIANT MAGNETORESISTANCE; MAGNETOELASTIC ANISOTROPY; GRANULAR STRUCTURE; ALLOYS; RESISTANCE; WIRES;

D O I：

10.1007/s10948-016-3767-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the effect of annealing on magneto-transport, magnetic, and structural properties of Cu100-xCox (x = 5, 10, 20) glass-coated microwires prepared using the Taylor-Ulitovsky technique. Both as-prepared and annealed samples exhibit magnetoresistance effect. We observed a Kondo-like effect in as-prepared and annealed Cu95Co5 microwire and a significant increase of the giant magnetoresistance (GMR) in all studied Co-Cu after annealing. The origin of GMR effect and Kondo-like behavior is discussed considering structural changes of the annealed samples.

引用

页码：1109 / 1114

页数：6

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