Magnetoelasticity in dysprosium-scandium superlattices


Benito, L., Arnaudas, J.I., de la Fuente, C., del Moral, A., de Groot, P.A.J., Wells, M.R. and Ward, R.C.C. (2004) Magnetoelasticity in dysprosium-scandium superlattices. Journal of Magnetism and Magnetic Materials, 272-276, (3), 2058-2059. (doi:10.1016/j.jmmm.2003.12.823).

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Description/Abstract

We have studied the magnetoelastic stress parameter, Bγ,2, associated with the shear deformation within the basal plane of the (0 0 0 1) Dy (20 Å)/Sc (t=20–60 Å) superlattices (SLs). The extrapolated Bγ,2(0 K) values change from 1.45 to 0.9 GPa when t changes from 60 to 20 Å, respectively. All SLs show a thermal behavior of Bγ,2 affected by volume and interfacial contributions. The scandium thickness dependence of the volume contribution shows a surprisingly logarithmic behavior that indicates the existence of dislocations in the Dy blocks.

Item Type: Article
ISSNs: 0304-8853 (print)
Related URLs:
Keywords: rare-earth superlattices, magnetostriction
Subjects: Q Science > QB Astronomy
Q Science > QD Chemistry
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Electronics and Computer Science
University Structure - Pre August 2011 > School of Physics and Astronomy
University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 57081
Date Deposited: 13 Aug 2008
Last Modified: 27 Mar 2014 18:39
URI: http://eprints.soton.ac.uk/id/eprint/57081

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