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Transverse magnetic exchange springs in a DyFe2/YFe2 superlattice

DOI: 10.1103/PhysRevB.86.174420 DOI Help

Authors: G. B. G. Stenning (University of Southampton) , G. J. Bowden (University of Southampton) , S. A. Gregory (University of Southampton) , P. A. J. De Groot (University of Southampton) , G. Van Der Laan (Diamond Light Source) , L. R. Shelford (Diamond Light Source) , P. A. J. Bencok (Diamond Light Source) , P. Steadman (Diamond Light Source) , A. N. Dobrynin (Diamond Light Source) , T. Hesjedal (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 86 (17)

State: Published (Approved)
Published: November 2012
Diamond Proposal Number(s): 7162

Abstract: Using a history-dependent method, it is possible to prepare magnetic superlattices, consisting of alternating hard and soft layers, in transverse exchange spring states. The procedure, which involves both physical rotation and magnetization routines, is illustrated using a (110)-oriented [DyFe2(60 angstrom)/YFe2(240 angstrom)](15) multilayer film. In small applied fields, it is shown that the magnetic response of a transverse magnetic exchange spring is reversible. However, in fields of up to 14 T, the Dy moments are pulled up out of their local in-plane [00 (1) over bar] minimum into an out-of-plane [100] (or equivalent [010]) axis. The reversible transverse exchange spring state is then lost. Thereafter, the magnetic loop is characterized by an irreversible out-of-plane magnetic exchange spring state.

Subject Areas: Physics, Materials

Instruments: I10-Beamline for Advanced Dichroism - scattering

Added On: 07/12/2012 09:53

Discipline Tags:

Physics Magnetism Materials Science

Technical Tags:

Spectroscopy Circular Dichroism (CD) X-ray Magnetic Circular Dichroism (XMCD)