Biquadratic exchange in ferromagnetic/nonferromagnetic sandwiches: A spin-polarized low-energy electron microscopy study

被引:13
作者
Duden, T [1 ]
Bauer, E [1 ]
机构
[1] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA
来源
PHYSICAL REVIEW B | 1999年 / 59卷 / 01期
关键词
D O I
10.1103/PhysRevB.59.474
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnetic domain structure of Co/Au/Co sandwich layers grown on W(110) is studied in situ by spin-polarized low energy electron microscopy as a function of Au spacer layer and top Co layer thickness with the goal to better understand the causes and consequences of biquadratic coupling for the resulting domain structure. It is found that biquadratic coupling not only strongly influences the coupling between the layers near the zero of the bilinear coupling but also at spacer thicknesses at which strong ferromagnetic coupling occurs. Biquadratic coupling appears in a spin reorientation transition between 4 and 5 monolayers. The existence of bilinear and biquadratic coupling produces a wrinkled in-plane magnetization. [S0163-1829(99)05601-5].
引用
收藏
页码:474 / 479
页数:6
相关论文
共 32 条
[1]   PHASE-DIAGRAM OF MAGNETIC MULTILAYERS - THE ROLE OF BIQUADRATIC EXCHANGE [J].
ALMEIDA, NS ;
MILLS, DL .
PHYSICAL REVIEW B, 1995, 52 (18) :13504-13510
[3]   ON THE BIQUADRATIC INTERLAYER COUPLING IN LAYERED MAGNETIC-STRUCTURES [J].
BARNAS, J ;
GRUNBERG, P .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 121 (1-3) :326-329
[4]   INTRINSIC BIQUADRATIC CONTRIBUTION TO INTERLAYER COUPLING IN MAGNETIC LAYERED STRUCTURES [J].
BARNAS, J .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 123 (1-2) :L21-L24
[5]   COUPLING BETWEEN MAGNETIC MONOLAYERS IN A QUANTUM-WELL [J].
BARNAS, J .
PHYSICAL REVIEW B, 1995, 52 (15) :10744-10747
[6]  
BAUER E, 1988, SURFACE INTERFACE CH, P185
[7]  
Bauer E., 1997, HDB MICROSCOPY, P751
[8]   INTERLAYER EXCHANGE COUPLING - A UNIFIED PHYSICAL PICTURE [J].
BRUNO, P .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 121 (1-3) :248-252
[9]   THEORY OF INTERLAYER MAGNETIC COUPLING [J].
BRUNO, P .
PHYSICAL REVIEW B, 1995, 52 (01) :411-439