OSCILLATIONS WITH A PERIOD OF 2 CR MONOLAYERS IN THE ANTIFERROMAGNETIC EXCHANGE COUPLING IN A (001) FE/CR/FE SANDWICH STRUCTURE

被引:211
作者
PURCELL, ST [1 ]
FOLKERTS, W [1 ]
JOHNSON, MT [1 ]
MCGEE, NWE [1 ]
JAGER, K [1 ]
DESTEGGE, JA [1 ]
ZEPER, WB [1 ]
HOVING, W [1 ]
机构
[1] FORSCHUNGSZENTRUM JULICH, INST FESTKORPERFORSCH, W-5170 JULICH 1, GERMANY
关键词
D O I
10.1103/PhysRevLett.67.903
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Oscillations with a period of two Cr monolayers were measured in the antiferromagnetic exchange coupling between Fe magnetizations separated by Cr. The coupling was measured on a sample consisting of a Au(20 angstrom)/Fe(50 angstrom)/Cr(0-18 angstrom wedge) film deposited by a molecular-beam epitaxy on a Fe[100] single-crystal "whisker." The Cr and Fe grew monolayer by monolayer as monitored by reflection high-energy-electron diffraction. The coupling was determined from the magneto-optic Kerr effect. It was antiferromagnetic for 5-18 angstrom Cr with four strong peaks and a maximum value of -0.60 mJ/m2 for eight monolayers of Cr.
引用
收藏
页码:903 / 906
页数:4
相关论文
共 13 条