Large magnetoresistance using hybrid spin filter devices

被引：184

作者：

LeClair, P

Ha, JK

Swagten, HJM

Kohlhepp, JT

van de Vin, CH

de Jonge, WJM

机构：

[1] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands

[2] Eindhoven Univ Technol, Cobra Res Inst, NL-5600 MB Eindhoven, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 04期

关键词：

D O I：

10.1063/1.1436284

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A magnetic "spin filter" tunnel barrier, sandwiched between a nonmagnetic metal and a magnetic metal, is used to create a magnetoresistive tunnel device, somewhat analogous to an optical polarizer-analyzer configuration. The resistance of these trilayer structures depends on the relative magnetization orientation of the spin filter and the ferromagnetic electrode. The spin filtering in this configuration yields a previously unobserved magnetoresistance effect, exceeding 100%. (C) 2002 American Institute of Physics.

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收藏

页码：625 / 627

页数：3

相关论文

共 18 条

[1] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F ;

Cibert, J ;

Ferrand, D .

SCIENCE, 2000, 287 (5455) :1019-1022

[2] QUANTUM COMPUTATION [J].

DIVINCENZO, DP .

SCIENCE, 1995, 270 (5234) :255-261

[3] MAGNETOINTERNAL FIELD EMISSION IN JUNCTIONS OF MAGNETIC INSULATORS [J].

ESAKI, L ;

STILES, PJ ;

VONMOLNA.S .

PHYSICAL REVIEW LETTERS, 1967, 19 (15) :852-&

[4] Injection and detection of a spin-polarized current in a light-emitting diode [J].

Fiederling, R ;

Keim, M ;

Reuscher, G ;

Ossau, W ;

Schmidt, G ;

Waag, A ;

Molenkamp, LW .

NATURE, 1999, 402 (6763) :787-790

[5] Determination of the spin polarization of half-metallic CrO2 by point contact Andreev reflection [J].

Ji, Y ;

Strijkers, GJ ;

Yang, FY ;

Chien, CL ;

Byers, JM ;

Anguelouch, A ;

Xiao, G ;

Gupta, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (24) :5585-5588

[6]

KANT CH, UNPUB

[7] THE MAGNETIC, OPTICAL, AND TRANSPORT-PROPERTIES OF REPRESENTATIVES OF A CLASS OF MAGNETIC SEMICONDUCTORS - THE EUROPIUM CHALCOGENIDES [J].

MAUGER, A ;

GODART, C .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1986, 141 (2-3) :51-176

[8] SPIN-POLARIZED ELECTRON-TUNNELING [J].

MESERVEY, R ;

TEDROW, PM .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1994, 238 (04) :173-243

[9] ELECTRON-SPIN POLARIZATION IN TUNNEL-JUNCTIONS IN ZERO APPLIED FIELD WITH FERROMAGNETIC EUS BARRIERS [J].

MOODERA, JS ;

HAO, X ;

GIBSON, GA ;

MESERVEY, R .

PHYSICAL REVIEW LETTERS, 1988, 61 (05) :637-640

[10] LARGE MAGNETORESISTANCE AT ROOM-TEMPERATURE IN FERROMAGNETIC THIN-FILM TUNNEL-JUNCTIONS [J].

MOODERA, JS ;

KINDER, LR ;

WONG, TM ;

MESERVEY, R .

PHYSICAL REVIEW LETTERS, 1995, 74 (16) :3273-3276