Spin density waves in epitaxial Fe/Cr films

P Bödeker,P Sonntag,A Schreyer,J Borchers,K Hamacher,H Kaiser,H Zabel

doi:10.1016/s0921-4526(96)01011-3

Spin density waves in epitaxial Fe/Cr films

P Bödeker, P Sonntag + Show 5 more

https://doi.org/10.1016/s0921-4526(96)01011-3

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Journal: Physica B Condensed Matter	Publication Date: Jun 1, 1997
Citations: 3

Affiliation: Ruhr University Bochum, National Institute of Standards and Technology, University of Missouri

#Spin Density Waves #Thin Epitaxial Cr + Show 8 more

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Abstract

We have investigated proximity effects of Fe layers on the spin density waves (SDW) in thin epitaxial Cr[0 0 1] films with neutron scattering. Unlike in bulk Cr we observe a strong anisotropic occupation of the three possible SDWs. In pure Cr[0 0 1] films the SDWs exhibit an almost complete out-of-plane propagation with spins parallel to Q. With only 20 A Fe on top of these Cr films, the SDW becomes completely re-oriented with Q now propagating in the plane but the Cr-spins still point out of the plane. This implies that the Fe and Cr moments are ooriented perpendicular to each other.

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