GIANT MAGNETOTHERMOPOWER AND GIANT MAGNETORESISTANCE IN MOLECULAR-BEAM EPITAXY-GROWN CO/CU(111) SUPERLATTICES

被引：11

作者：

AVDI, E

HICKEY, BJ

GREIG, D

HOWSON, MA

HALL, MJ

XU, J

WALKER, MJ

WISER, N

DEGROOT, P

机构：

[1] BAR ILAN UNIV,DEPT PHYS,RAMAT GAN,ISRAEL

[2] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353689

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the observation of a giant magnetothermopower (GMT), giant magnetoresistance (GMR), and on magnetization measurements in Co/Cu[111] superlattices grown by molecular beam epitaxy. The maximum value of the GMT (at room temperature) was 14% for a Cu thickness of 9 angstrom and the maximum GMR (at 4.2 K) was -26% at 7 angstrom of Cu. Oscillations in the remnant magnetization and the saturation field as a function of Cu thickness with a period of about 10 angstrom were observed. However, there were no oscillations in the GMT or the GMR. The maximum values of both the GMT and GMR are associated with saturation fields in excess of 40 kOe and with small remnant magnetizations. These results are consistent with the presence of antiferromagnetic coupling.

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页码：5521 / 5523

页数：3

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