MAGNETOTHERMOPOWER OF FE/CR SUPERLATTICES

被引：42

作者：

CONOVER, MJ ^{[1
]}

BRODSKY, MB ^{[1
]}

MATTSON, JE ^{[1
]}

SOWERS, CH ^{[1
]}

BADER, SD ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT PHYS,EVANSTON,IL 60208

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 102卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(91)90255-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report magnetothermopower S(H) measurements at room temperature for sputtered [Fe(32 angstrom)/Cr(x)]30 superlattices with x almost-equal-to 5-50 angstrom. The thermopower in zero field S(H = 0) appears to extrapolate to the known values for Fe and Cr in the x = 0 and large-x limits, respectively, and drops below these values at intermediate x. S follows the same trend with H and x as the magnetoresistance (MR), which shows oscillatory behavior as a function of x, and large field effects for antiferromagnetic Fe interlayer couplings. Both S(H) and the MR saturate when the applied field aligns the magnetization of the Fe-layers parallel to each other, but the thermopower is enhanced by application of a magnetic field, while the resistivity decreases, in accord with expectation.

引用

页码：L5 / L8

页数：4

共 27 条

[1] THERMOELECTRIC POWER OF ANTIFERROMAGNETIC CHROMIUM-IRON ALLOYS [J].