Structural and magnetic properties of magnetoresistive Cu-Co-Fe ribbons

被引:3
作者
Crisan, O
Le Breton, JM
Jianu, A
Maignan, A
Noguès, M
Teillet, J
Filoti, G
机构
[1] Natl Inst Mat Phys, Bucharest 76900, Romania
[2] CNRS, UMR 6634, GMP, Equipe Magnetisme & Applicat, F-76821 Mt St Aignan, France
[3] Inst Sci Mat & Rayonnement, Lab CRISMAT, CNRS, UMR 6508, F-14050 Caen, France
[4] Univ Versailles, CNRS, LMOV, F-78035 Versailles, France
关键词
Cu-Co-Fe magnetoresistive ribbons; Mossbauer spectrometry; structural refinement; superparamagnetic behavior;
D O I
10.1016/S0304-8853(98)00822-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Melt-spun Cu80Co10Fe10 ribbons are shown to exhibit a nanogranular structure with magnetic alpha-Fe(Co) grains segregated from the Cu-rich matrix after appropriate annealing. The Cu matrix purification as well as the magnetic properties of the alpha-Fe(Co) grains existing in a range of sizes are studied using X-ray diffraction, Mossbauer spectrometry and magnetic measurements. There is an optimum annealing for obtaining a high magnetoresistive effect. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:467 / 469
页数:3
相关论文
共 7 条
[1]   Correlation effects among nanometre-sized clusters in Cu-Co melt-spun alloys with giant magnetoresistance [J].
Allia, P ;
Tiberto, P ;
Vinai, F .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1997, 76 (04) :447-455
[2]   GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO ALLOYS [J].
BERKOWITZ, AE ;
MITCHELL, JR ;
CAREY, MJ ;
YOUNG, AP ;
ZHANG, S ;
SPADA, FE ;
PARKER, FT ;
HUTTEN, A ;
THOMAS, G .
PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3745-3748
[3]   REENTRANT MAGNETIC-BEHAVIOR IN FCC CO-CU ALLOYS [J].
CHILDRESS, JR ;
CHIEN, CL .
PHYSICAL REVIEW B, 1991, 43 (10) :8089-8093
[4]   SUPERPARAMAGNETISM IN MELT-SPUN CUCO GRANULAR SAMPLES [J].
HICKEY, BJ ;
HOWSON, MA ;
MUSA, SO ;
TOMKA, GJ ;
RAINFORD, BD ;
WISER, N .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 147 (03) :253-259
[5]   MAGNETIC-PROPERTIES OF ISOLATED GAMMA-FE2O3 PARTICLES [J].
PRENE, P ;
TRONC, E ;
JOLIVET, JP ;
LIVAGE, J ;
FIORANI, D .
IEEE TRANSACTIONS ON MAGNETICS, 1993, 29 (06) :2658-2660
[6]   Phase and particle size distribution in magnetoresistive Fe-Cu granular alloys investigated by Mossbauer spectroscopy [J].
Rogalski, MS ;
deAzevedo, MMP ;
Sousa, JB .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1996, 163 (03) :L257-L263
[7]   CONDUCTIVITY AND MAGNETORESISTANCE IN MAGNETIC GRANULAR FILMS [J].
ZHANG, SF ;
LEVY, PM .
JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :5315-5319