Extraordinary Hall effect in giant magnetoresistive Fe/Cr multilayers: The role of interface scattering

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R11938· OSTI ID:283918

Korenivski, V; Rao, K V ^[1]; Colino, J; Schuller, I K ^[2]

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1. Department of Condensed Matter Physics, Royal Institute of Technology, S-100 44 Stockholm (Sweden)
2. Department of Physics, 0319, University of California San Diego, La Jolla, California 92093-0319 (United States)

We have investigated the Hall effect in giant-magnetoresistive Fe/Cr multilayers as a function of systematic changes in interfacial roughness. Two approaches have been used to modify the interfacial roughness: sputter deposition under different argon pressures, and isothermal annealing at fixed temperatures. We find that interfacial roughness enhances the magnetic (extraordinary) contribution to the Hall effect. Furthermore, the presence of roughness at the interfaces modifies the relationship between the Hall resistivity and the longitudinal resistivity. These results indicate that interface scattering cannot be neglected and should be included in theories of the extraordinary Hall effect in magnetic multilayers. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 283918
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 18 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM
HALL EFFECT
INTERFACES
IRON
MAGNETORESISTANCE
MORPHOLOGY
MULTILAYERS
ROUGHNESS
SCATTERING
SUPERLATTICES