Optimum tunnel barrier in ferromagnetic-insulator-ferromagnetic tunneling structures

被引：153

作者：

Moodera, JS

Gallagher, EF

Robinson, K

Nowak, J

机构：

[1] Francis Bitter Magnet Laboratory, MIT, Cambridge

来源：

APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 22期

关键词：

D O I：

10.1063/1.118168

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Al2O3 tunnel barriers I, formed by the oxidization of Al metal of various thicknesses between two ferromagnetic (FM) films were investigated to understand the influence of overlayer metal Al on the junction magnetoresistance (JMR). The optimum thickness of Al was observed to lie in the range of 1-1.6 nm to achieve good JMR in FM-I-FM junctions. Additionally, such junctions can be used to study the magnetic proximity effect in ferromagnet/normal metal bilayer systems. (C) 1997 American Institute of Physics.

引用

页码：3050 / 3052

页数：3

共 28 条

[1] 2-PARTICLE TUELLING BETWEEN SUPERCONDUCTORS
ADKINS, CJ
[J]. PHILOSOPHICAL MAGAZINE, 1963, 8 (90): : 1051 - &
[2] TRANSITION FROM PAULI PARAMAGNETISM TO BAND FERROMAGNETISM IN VERY THIN NI FILMS
BERGMANN, G
[J]. PHYSICAL REVIEW LETTERS, 1978, 41 (04) : 264 - 267
[3] TUNNELING DETERMINATION OF ELECTRON PHONON INTERACTION IN MG
BURNELL, DM
WOLF, EL
[J]. PHYSICS LETTERS A, 1982, 90 (09) : 471 - 473
[4] THIN-FILMS OF ITINERANT-ELECTRON FERROMAGNETS ON A NONMAGNETIC METALLIC SUBSTRATE
COX, BN
TAHIRKHELI, RA
ELLIOTT, RJ
[J]. PHYSICAL REVIEW B, 1979, 20 (07): : 2864 - 2868
[5] DUKE CB, 1969, SOLID STATE PHYS S, V10
[6] GALLAGHER WJ, 1978, THESIS MIT, P226
[7] ENERGY GAP IN SUPERCONDUCTORS MEASURED BY ELECTRON TUNNELING
GIAEVER, I
[J]. PHYSICAL REVIEW LETTERS, 1960, 5 (04) : 147 - 148
[8] TUNNELING BETWEEN FERROMAGNETIC-FILMS
JULLIERE, M
[J]. PHYSICS LETTERS A, 1975, 54 (03) : 225 - 226
[9] ELLIPSOMETRICAL DETERMINATION OF BARRIER THICKNESSES OF METAL-INSULATOR-METAL TUNNEL JUNCTIONS
KNORR, K
[J]. SOLID STATE COMMUNICATIONS, 1973, 12 (07) : 615 - 619
[10] Large magnetotunneling effect at low magnetic fields in micrometer-scale epitaxial La0.67Sr.033MnO3 tunnel junctions
Lu, Y
Li, XW
Gong, GQ
Xiao, G
Gupta, A
Lecoeur, P
Sun, JZ
Wang, YY
Dravid, VP
[J]. PHYSICAL REVIEW B, 1996, 54 (12) : R8357 - R8360

← 1 2 3 →