Magnetic anisotropy in antiferromagnetic hexagonal MnTe

Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on semiconducting epitaxial MnTe thin films together with density fun...

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Main Authors: Kriegner, D., Reichlova, H., Grenzer, J., Schmidt, W., Ressouche, E., Godinho, J., Wagner, T., Martin, S.Y., Shick, A.B., Volobuev, V.V., Springholz, G., Holý, V., Wunderlich, J., Jungwirth, T., Výborný, K.
Format: Article
Published: American Physical Society 2017
Online Access:https://eprints.nottingham.ac.uk/50083/
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author Kriegner, D.
Reichlova, H.
Grenzer, J.
Schmidt, W.
Ressouche, E.
Godinho, J.
Wagner, T.
Martin, S.Y.
Shick, A.B.
Volobuev, V.V.
Springholz, G.
Holý, V.
Wunderlich, J.
Jungwirth, T.
Výborný, K.
author_facet Kriegner, D.
Reichlova, H.
Grenzer, J.
Schmidt, W.
Ressouche, E.
Godinho, J.
Wagner, T.
Martin, S.Y.
Shick, A.B.
Volobuev, V.V.
Springholz, G.
Holý, V.
Wunderlich, J.
Jungwirth, T.
Výborný, K.
author_sort Kriegner, D.
building Nottingham Research Data Repository
collection Online Access
description Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on semiconducting epitaxial MnTe thin films together with density functional theory (DFT) calculations of the magnetic anisotropies. The easy axes of the magnetic moments within the hexagonal basal plane are determined to be along ⟨1¯100⟩ directions. The spin-flop transition and concomitant repopulation of domains in strong magnetic fields is observed. Using epitaxially induced strain the onset of the spin-flop transition changes from ∼2 to ∼0.5 T for films grown on InP and SrF2 substrates, respectively.
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institution University of Nottingham Malaysia Campus
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publishDate 2017
publisher American Physical Society
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spelling nottingham-500832020-05-04T19:22:35Z https://eprints.nottingham.ac.uk/50083/ Magnetic anisotropy in antiferromagnetic hexagonal MnTe Kriegner, D. Reichlova, H. Grenzer, J. Schmidt, W. Ressouche, E. Godinho, J. Wagner, T. Martin, S.Y. Shick, A.B. Volobuev, V.V. Springholz, G. Holý, V. Wunderlich, J. Jungwirth, T. Výborný, K. Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on semiconducting epitaxial MnTe thin films together with density functional theory (DFT) calculations of the magnetic anisotropies. The easy axes of the magnetic moments within the hexagonal basal plane are determined to be along ⟨1¯100⟩ directions. The spin-flop transition and concomitant repopulation of domains in strong magnetic fields is observed. Using epitaxially induced strain the onset of the spin-flop transition changes from ∼2 to ∼0.5 T for films grown on InP and SrF2 substrates, respectively. American Physical Society 2017-12-13 Article PeerReviewed Kriegner, D., Reichlova, H., Grenzer, J., Schmidt, W., Ressouche, E., Godinho, J., Wagner, T., Martin, S.Y., Shick, A.B., Volobuev, V.V., Springholz, G., Holý, V., Wunderlich, J., Jungwirth, T. and Výborný, K. (2017) Magnetic anisotropy in antiferromagnetic hexagonal MnTe. Physical Review B, 96 (21). p. 214418. ISSN 2469-9969 https://doi.org/10.1103/PhysRevB.96.214418 doi:10.1103/PhysRevB.96.214418 doi:10.1103/PhysRevB.96.214418
spellingShingle Kriegner, D.
Reichlova, H.
Grenzer, J.
Schmidt, W.
Ressouche, E.
Godinho, J.
Wagner, T.
Martin, S.Y.
Shick, A.B.
Volobuev, V.V.
Springholz, G.
Holý, V.
Wunderlich, J.
Jungwirth, T.
Výborný, K.
Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title_full Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title_fullStr Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title_full_unstemmed Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title_short Magnetic anisotropy in antiferromagnetic hexagonal MnTe
title_sort magnetic anisotropy in antiferromagnetic hexagonal mnte
url https://eprints.nottingham.ac.uk/50083/
https://eprints.nottingham.ac.uk/50083/
https://eprints.nottingham.ac.uk/50083/