Search

Your search keyword '"Shahedkhah, M. R."' showing total 4 results
Start Over Author "Shahedkhah, M. R."
4 results on '"Shahedkhah, M. R."'

1. Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films

Author

Wadley, P., Edmonds, K. W., Shahedkhah, M. R., Campion, R. P., Gallagher, B. L., Zelezny, J., Kunes, J., Novak, V., Jungwirth, T., Saidl, V., Nemec, P., Maccherozzi, F., and Dhesi, S. S.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Using x-ray magnetic circular and linear dichroism techniques, we demonstrate a collinear exchange coupling between an epitaxial antiferromagnet, tetragonal CuMnAs, and an Fe surface layer. A small uncompensated Mn magnetic moment is observed which is antiparallel to the Fe magnetization. The staggered magnetization of the 5nm thick CuMnAs layer is rotatable under small magnetic fields, due to the interlayer exchange coupling. This allows us to obtain the x-ray magnetic linear dichroism spectra for different crystalline orientations of CuMnAs in the (001) plane., Comment: 10 pages, 3 figures

Published
2017

2. Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films

Author

Wadley, P., primary, Edmonds, K. W., additional, Shahedkhah, M. R., additional, Campion, R. P., additional, Gallagher, B. L., additional, Železný, J., additional, Kuneš, J., additional, Novák, V., additional, Jungwirth, T., additional, Saidl, V., additional, Němec, P., additional, Maccherozzi, F., additional, and Dhesi, S. S., additional

Published
2017
Full Text
View/download PDF

3. Antiferromagnetic structure in tetragonal CuMnAs thin films

Author

Wadley, P., Hills, Victoria Anne, Shahedkhah, M. R., Edmonds, K. W., Campion, R. P., Ouladdiaf, B., Khalyavin, D., Langridge, S., Saidl, V., N?mec, P., Rushforth, A. W., Gallagher, B. L., Dhesi, S. S., Maccherozzi, F., and Jungwirth, T.

Subjects
Condensed Matter::Materials Science
Abstract

Tetragonal CuMnAs is an antiferromagnetic material with favourable properties for applications in spintronics. Using a combination of neutron diffraction and x-ray magnetic linear dichroism, we determine the spin axis and magnetic structure in tetragonal CuMnAs, and reveal the presence of an interfacial uniaxial magnetic anisotropy. From the temperature-dependence of the neutron diffraction intensities, the Néel temperature is shown to be (480 ± 5) K. Ab initio calculations indicate a weak anisotropy in the (ab) plane for bulk crystals, with a large anisotropy energy barrier between in-plane and perpendicular-to-plane directions.

Published
2015

4. Antiferromagnetic structure in tetragonal CuMnAs thin films.

Author

Wadley P, Hills V, Shahedkhah MR, Edmonds KW, Campion RP, Novák V, Ouladdiaf B, Khalyavin D, Langridge S, Saidl V, Nemec P, Rushforth AW, Gallagher BL, Dhesi SS, Maccherozzi F, Železný J, and Jungwirth T

Abstract

Tetragonal CuMnAs is an antiferromagnetic material with favourable properties for applications in spintronics. Using a combination of neutron diffraction and x-ray magnetic linear dichroism, we determine the spin axis and magnetic structure in tetragonal CuMnAs, and reveal the presence of an interfacial uniaxial magnetic anisotropy. From the temperature-dependence of the neutron diffraction intensities, the Néel temperature is shown to be (480 ± 5) K. Ab initio calculations indicate a weak anisotropy in the (ab) plane for bulk crystals, with a large anisotropy energy barrier between in-plane and perpendicular-to-plane directions.

Published
2015
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results