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Article

Antiferromagnetic Oxide Thin Films for Spintronic Applications

1
Materials Research Laboratory, Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
2
Materials Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Paolo Mele
Coatings 2021, 11(7), 786; https://doi.org/10.3390/coatings11070786
Received: 31 May 2021 / Revised: 22 June 2021 / Accepted: 24 June 2021 / Published: 30 June 2021
Antiferromagnetic oxides have recently gained much attention because of the possibility to manipulate electrically and optically the Néel vectors in these materials. Their ultrafast spin dynamics, long spin diffusion length and immunity to large magnetic fields make them attractive candidates for spintronic applications. Additionally, there have been many studies on spin wave and magnon transport in single crystals of these oxides. However, the successful applications of the antiferromagnetic oxides will require similar spin transport properties in thin films. In this work, we systematically show the sputtering deposition method for two uniaxial antiferromagnetic oxides, namely Cr2O3 and α-Fe2O3, on A-plane sapphire substrates, and identify the optimized deposition conditions for epitaxial films with low surface roughness. We also confirm the antiferromagnetic properties of the thin films. The deposition method developed in this article will be important for studying the magnon transport in these epitaxial antiferromagnetic thin films. View Full-Text
Keywords: chromium oxide; hematite; reactive magnetron sputtering; epitaxial thin film; roughness; antiferromagnetic oxides chromium oxide; hematite; reactive magnetron sputtering; epitaxial thin film; roughness; antiferromagnetic oxides
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MDPI and ACS Style

Siddiqui, S.A.; Hong, D.; Pearson, J.E.; Hoffmann, A. Antiferromagnetic Oxide Thin Films for Spintronic Applications. Coatings 2021, 11, 786. https://doi.org/10.3390/coatings11070786

AMA Style

Siddiqui SA, Hong D, Pearson JE, Hoffmann A. Antiferromagnetic Oxide Thin Films for Spintronic Applications. Coatings. 2021; 11(7):786. https://doi.org/10.3390/coatings11070786

Chicago/Turabian Style

Siddiqui, Saima A., Deshun Hong, John E. Pearson, and Axel Hoffmann. 2021. "Antiferromagnetic Oxide Thin Films for Spintronic Applications" Coatings 11, no. 7: 786. https://doi.org/10.3390/coatings11070786

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