Steadman P, Ali M, Hindmarch A T, Marrows C H, Hickey B J, Langridge Sean, Dalgliesh R M, Foster S
Department of Physics and Astronomy, E. C. Stoner Laboratory, University of Leeds, United Kingdom.
Phys Rev Lett. 2002 Aug 12;89(7):077201. doi: 10.1103/PhysRevLett.89.077201. Epub 2002 Jul 26.
Exchange bias has been observed in sputtered magnetic double superlattices which consist of a ferromagnetically coupled superlattice grown on an antiferromagnetically (AF) coupled superlattice. This system exhibits a parallel domain wall, a spin flop transition, and exchange bias when the anisotropy is large in the AF block. This work shows that neither the domain wall nor the spin flop are directly related to exchange bias but that the anisotropy is essential.
在由生长在反铁磁（AF）耦合超晶格上的铁磁耦合超晶格组成的溅射磁性双超晶格中观察到了交换偏置。当AF块中的各向异性较大时，该系统会出现平行畴壁、自旋翻转转变和交换偏置。这项工作表明，畴壁和自旋翻转都与交换偏置没有直接关系，而各向异性才是至关重要的。
