MAGNETORESISTIVITY AND OSCILLATORY INTERLAYER MAGNETIC COUPLING OF SPUTTERED FE/NB SUPERLATTICES

被引：60

作者：

MATTSON, JE ^{[1
]}

SOWERS, CH ^{[1
]}

BERGER, A ^{[1
]}

BADER, SD ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, INST GRENZFLACHENFORSCH & VAKUUMPHYS, W-5170 JULICH 1, GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.68.3252

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Sputtered Fe(20 angstrom)/Nb superlattices were prepared with Nb thicknesses ranging from approximately 2 to 40 angstrom, and oscillatory interlayer magnetic coupling was observed by means of magnetoresistance (MR), magnetometry, and Kerr rotation measurements. As many as five oscillations between ferromagnetic and antiferromagnetic coupling were observed at room temperature with a Nb periodicity of approximately 9 angstrom. The largest negative MR measured, however, was only 0.3%. The low MR values and high resistivity (60-120-mu-OMEGA-cm) suggest that the structural disorder associated with the lattice mismatch (13% in this system) plays an important role in governing the transport phenomenon.

引用

页码：3252 / 3255

页数：4

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