Magnetic coupling in asymmetric FeCoV/Ru/FeNi trilayers

• We have investigated the magnetic anisotropy and interlayer coupling in trilayer films of permendur(100 angstrom)/Ru/permalloy(100 angstrom), with the thickness of the Ru spacer varying from 0 to 200 angstrom. While the permendur/permalloy sample exhibits a small in-plane uniaxial magnetic anisotropy with H-u = 27 Oe, all trilayers are magnetically isotropic in-plane. Results from hysteresis loop and ferromagnetic resonance measurements were fitted to a micromagnetic model, with the results indicating that all the films are ferromagnetically coupled except the one with 10 angstrom Ru spacer, which shows antiferromagnetic coupling. The trilayers with Ru spacer layer thickness larger than 20 angstrom exhibit only very weak ferromagnetic coupling. (C) 2014 AIP Publishing LLC.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

BRILLOUIN LIGHT-SCATTERING

Physics

Applied

PHYSICS

APPLIED

Engineering Science with specialization in Solid State Physics

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