K Mibu and T Shinjo 2002 J. Phys. D: Appl. Phys. 35 2359 doi:10.1088/0022-3727/35/19/306
K Mibu1,2 and T Shinjo1
Show affiliationsIt is demonstrated experimentally that the magnetic structure of Cr films, an antiferromagnetic system with itinerant electrons, can be controlled by periodic insertion of nonmagnetic monatomic layers. When monatomic Sn layers are periodically embedded in a Cr(001) film to form an epitaxial Cr(001)/Sn multilayer, a spin-density-wave (SDW) antiferromagnetic structure with the modulation along the perpendicular direction to the film plane is stabilized at low temperatures. The wavelength of the SDW discretely changes as a function of the superlattice period. The enhanced magnetic moments of Cr at the Cr/Sn interfaces are thought to pin the antinode of the SDW modulation at the interface, resulting in the SDW with the modulation harmonic to the superlattice period. It is also indicated that the antinode can be pinned by inserting monatomic Ag or Au layers, whereas the node can be pinned by V layers.
75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures)
Issue 19 (21-October 2002)
Received 5 April 2002
Published 13 September 2002
K Mibu and T Shinjo 2002 J. Phys. D: Appl. Phys. 35 2359
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