INVESTIGATION OF GIANT MAGNETORESISTANCE IN CONCENTRATED AND NANOSTRUCTURED ALLOYS

被引：62

作者：

WANG, JQ

XIONG, P

XIAO, G

机构：

[1] Department of Physics, Brown University, Providence

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.47.8341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetotransport and magnetic properties of Fe-Cu, Fe-Ag, Fe-Au, and Fe-Pt alloys were studied across a wide range of Fe volume fraction and at different annealing conditions. The giant magnetoresistance (GMR) effect was observed in Cu-, Ag-, and Au-based systems, peaking at an Fe volume fraction of about 15-20 %. The Hall effect was also measured, which yielded the electron mean free path. Thermal annealing increases the magnetic particle size and reduces resistivity due to magnetic scattering. The GMR and its dependence on magnetic field are well accounted for by an effective exchange interaction model.

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页码：8341 / 8344

页数：4

相关论文

共 12 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[2] THEORY OF THE MAGNETORESISTANCE IN MAGNETIC MULTILAYERS - ANALYTICAL EXPRESSIONS FROM A SEMICLASSICAL APPROACH [J].

BARTHELEMY, A ;

FERT, A .

PHYSICAL REVIEW B, 1991, 43 (16) :13124-13129

[3] 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

[4] THEORY OF GIANT MAGNETORESISTANCE EFFECTS IN MAGNETIC LAYERED STRUCTURES WITH ANTIFERROMAGNETIC COUPLING [J].

CAMLEY, RE ;

BARNAS, J .

PHYSICAL REVIEW LETTERS, 1989, 63 (06) :664-667

[5] GRANULAR FE IN A METALLIC MATRIX [J].

CHILDRESS, JR ;

CHIEN, CL ;

NATHAN, M .

APPLIED PHYSICS LETTERS, 1990, 56 (01) :95-97

[6]

FELSCH W, 1970, Z ANGEW PHYSIK, V29, P217

[7] ELECTRICAL-CONDUCTIVITY OF MAGNETIC MULTILAYERED STRUCTURES [J].

LEVY, PM ;

ZHANG, SF ;

FERT, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (13) :1643-1646

[8] OSCILLATIONS IN EXCHANGE COUPLING AND MAGNETORESISTANCE IN METALLIC SUPERLATTICE STRUCTURES - CO/RU, CO/CR, AND FE/CR [J].

PARKIN, SSP ;

MORE, N ;

ROCHE, KP .

PHYSICAL REVIEW LETTERS, 1990, 64 (19) :2304-2307

[9] MAGNETEORESISTANCE OF DILUTE ALLOYS [J].

ROHRER, H .

PHYSICAL REVIEW, 1968, 174 (02) :583-&

[10] SPIN-DEPENDENT SCATTERING AND RESISTIVITY OF MAGNETIC METALS AND ALLOYS [J].

VANPESKITINBERG.T ;

DEKKER, AJ .

PHYSICA, 1963, 29 (09) :917-&