Giant magnetoresistance in magnetic granular Co15Cu85 alloys annealed by direct-current Joule heating

R. H. Yu; X. X. Zhang; J. Tejada; M. Knobel; P. Tiberto; P. Allia; F. Vinai

doi:10.1016/S0304-8853(96)00357-5

Giant magnetoresistance in magnetic granular Co₁₅Cu₈₅ alloys annealed by direct-current Joule heating

R. H. Yu^*, X. X. Zhang, J. Tejada, M. Knobel, P. Tiberto, P. Allia, F. Vinai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We have studied the structure and giant magnetoresistance (GMR) in the Co₁₅Cu₈₅ granular alloys prepared by melt-spinning and annealed by the direct-current (dc) Joule heating. At T = 10 K, GMR as large as 50.0% (in a magnetic field up to 30 kOe) has been observed in a sample annealed with I = 6 A. The Joule-heated samples show higher GMR than those annealed by the conventional method. It is attributed to less content of residual Co in the Cu matrix for the dc Joule-heated samples than that for the samples annealed in a furnace.

Original language	English (US)
Pages (from-to)	99-104
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	164
Issue number	1-2
DOIs	https://doi.org/10.1016/S0304-8853(96)00357-5
State	Published - Nov 1996
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Giant magnetoresistance in magnetic granular Co15Cu85 alloys annealed by direct-current Joule heating",

abstract = "We have studied the structure and giant magnetoresistance (GMR) in the Co15Cu85 granular alloys prepared by melt-spinning and annealed by the direct-current (dc) Joule heating. At T = 10 K, GMR as large as 50.0% (in a magnetic field up to 30 kOe) has been observed in a sample annealed with I = 6 A. The Joule-heated samples show higher GMR than those annealed by the conventional method. It is attributed to less content of residual Co in the Cu matrix for the dc Joule-heated samples than that for the samples annealed in a furnace.",

author = "Yu, {R. H.} and Zhang, {X. X.} and J. Tejada and M. Knobel and P. Tiberto and P. Allia and F. Vinai",

year = "1996",

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T1 - Giant magnetoresistance in magnetic granular Co15Cu85 alloys annealed by direct-current Joule heating

AU - Yu, R. H.

AU - Zhang, X. X.

AU - Tejada, J.

AU - Knobel, M.

AU - Tiberto, P.

AU - Allia, P.

AU - Vinai, F.

PY - 1996/11

Y1 - 1996/11

N2 - We have studied the structure and giant magnetoresistance (GMR) in the Co15Cu85 granular alloys prepared by melt-spinning and annealed by the direct-current (dc) Joule heating. At T = 10 K, GMR as large as 50.0% (in a magnetic field up to 30 kOe) has been observed in a sample annealed with I = 6 A. The Joule-heated samples show higher GMR than those annealed by the conventional method. It is attributed to less content of residual Co in the Cu matrix for the dc Joule-heated samples than that for the samples annealed in a furnace.

AB - We have studied the structure and giant magnetoresistance (GMR) in the Co15Cu85 granular alloys prepared by melt-spinning and annealed by the direct-current (dc) Joule heating. At T = 10 K, GMR as large as 50.0% (in a magnetic field up to 30 kOe) has been observed in a sample annealed with I = 6 A. The Joule-heated samples show higher GMR than those annealed by the conventional method. It is attributed to less content of residual Co in the Cu matrix for the dc Joule-heated samples than that for the samples annealed in a furnace.

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U2 - 10.1016/S0304-8853(96)00357-5

DO - 10.1016/S0304-8853(96)00357-5

M3 - Article

AN - SCOPUS:0030566238

SN - 0304-8853

VL - 164

SP - 99

EP - 104

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-2

ER -

Giant magnetoresistance in magnetic granular Co₁₅Cu₈₅ alloys annealed by direct-current Joule heating

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