Spin-Density-Wave Antiferromagnetism of Cr in Fe{bold /}Cr(001) Superlattices

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.1382· OSTI ID:288818

Fullerton, E E; Bader, S D ^[1]; Robertson, J L ^[2]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439-4845 (United States)
2. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393 (United States)

The antiferromagnetic spin-density-wave (SDW) order of Cr layers in Fe/Cr(001) superlattices was investigated by neutron scattering. For Cr thicknesses from 51 to 190A, a transverse SDW is formed for all temperatures below the N{acute e}el temperature with a single wave vector {bold Q} normal to the layers. A coherent magnetic structure forms with the nodes of the SDW near the Fe-Cr interfaces, and the magnetic coherence length greater than the Cr layer thickness. The results and modeling provide a direct confirmation of the persistence of bulklike antiferromagnetic SDW order in the Cr. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Oak Ridge Y-12 Plant
• DOE Contract Number: AC05-84OS21400; W-31109-ENG-38
• OSTI ID: 288818
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETISM
CHROMIUM
COHERENCE LENGTH
IRON
MAGNETIC MOMENTS
MAGNETIC STRUCTURE
NEUTRON DIFFRACTION
SPIN DENSITY WAVES
SPIN WAVES
SUPERLATTICES
TEMPERATURE DEPENDENCE