Molecular beam epitaxy of CuMnAs

Aliaksei Vetushka; Dominik Kriegner; Elisabetta M. Fiordaliso; Filip Krizek; Jan Michalicka; Jan Zub\'a\v{c}; Kamil Olejn\'ik; Kevin W. Edmonds; Martin Brajer; Ond\v{r}ej Man

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Molecular beam epitaxy of CuMnAs

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arxiv 1911.01794 v1 pith:HANFJJUV submitted 2019-11-05 cond-mat.mtrl-sci

Molecular beam epitaxy of CuMnAs

Filip Krizek , Zden\v{e}k Ka\v{s}par , Aliaksei Vetushka , Dominik Kriegner , Elisabetta M. Fiordaliso , Jan Michalicka , Ond\v{r}ej Man , Jan Zub\'a\v{c}

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Martin Brajer Victoria A. Hills Kevin W. Edmonds Peter Wadley Richard P. Campion Kamil Olejn\'ik Tom\'a\v{s} Jungwirth V\'it Nov\'ak

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keywords cumnasbeamepitaxygrowthmolecularpropertiesantiferromagneticcompare

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We present a detailed study of the growth of the tetragonal polymorph of antiferromagnetic CuMnAs by the molecular beam epitaxy technique. We explore the parameter space of growth conditions and their effect on the microstructural and transport properties of the material. We identify its typical structural defects and compare the properties of epitaxial CuMnAs layers grown on GaP, GaAs and Si substrates. Finally, we investigate the correlation between the crystalline quality of CuMnAs and its performance in terms of electrically induced resistance switching.

Molecular beam epitaxy of CuMnAs

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