Antiferromagnetic structure in tetragonal CuMnAs thin films.

Wadley, P; Hills, V; Shahedkhah, M R; Edmonds, K W; Campion, R P; Novák, V; Ouladdiaf, B; Khalyavin, D; Langridge, S; Saidl, V; Nemec, P; Rushforth, A W; Gallagher, B L; Dhesi, S S; Maccherozzi, F; Zelezný, J; Jungwirth, T

Wadley, P; Hills, V; Shahedkhah, M R; Edmonds, K W; Campion, R P; Novák, V; Ouladdiaf, B; Khalyavin, D; Langridge, S; Saidl, V; Nemec, P; Rushforth, A W; Gallagher, B L; Dhesi, S S; Maccherozzi, F; Zelezný, J; Jungwirth, T.

Afiliación

Wadley P; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Hills V; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Shahedkhah MR; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Edmonds KW; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Campion RP; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Novák V; Institute of Physics ASCR, v. v. i., Cukrovarnicka 10, 16253 Prague 6, Czech Republic.
Ouladdiaf B; Institut Laue-Langevin, 6 Rue Jules Horowitz, 38042 Grenoble, France.
Khalyavin D; ISIS, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Science and Technology Facilities Council, Oxon OX11 0QX, United Kingdom.
Langridge S; ISIS, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Science and Technology Facilities Council, Oxon OX11 0QX, United Kingdom.
Saidl V; Faculty of Mathematics and Physics, Charles University in Prague, 121 16 Prague, Czech Republic.
Nemec P; Faculty of Mathematics and Physics, Charles University in Prague, 121 16 Prague, Czech Republic.
Rushforth AW; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Gallagher BL; School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom.
Dhesi SS; Diamond Light Source, Chilton, Didcot, Oxfordshire OX11 0DE, United Kingdom.
Maccherozzi F; Diamond Light Source, Chilton, Didcot, Oxfordshire OX11 0DE, United Kingdom.
Zelezný J; Institute of Physics ASCR, v. v. i., Cukrovarnicka 10, 16253 Prague 6, Czech Republic.
Jungwirth T; Faculty of Mathematics and Physics, Charles University in Prague, 121 16 Prague, Czech Republic.

Sci Rep ; 5: 17079, 2015 Nov 25.

Article en En | MEDLINE | ID: mdl-26602978

RESUMEN

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.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2015 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Reino Unido

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