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01.01.2024 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Microstructure Features of Yttrium Orthoferrite Thin Films on Sapphire

verfasst von: A. L. Vasiliev, I. A. Subbotin, A. O. Belyaeva, Yu. M. Chesnokov, V. V. Izyurov, K. A. Merentsova, M. S. Artemiev, S. S. Dubinin, A. P. Nosov, E. M. Pashaev

Erschienen in: Physics of Metals and Metallography | Ausgabe 1/2024

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Abstract

X-ray diffraction and electron microscopy were used to examine the crystal structure features of ultrathin (3–50 nm) yttrium orthoferrite films, obtained by magnetron sputtering of stoichiometric composition target on α-Al₂O₃ substrates with orientation. The morphology and crystal structure of the films differ significantly depending on their thickness. In the thinnest films, several phases are formed, including yttrium orthoferrite with an orthorhombic crystal lattice (o-YFeO₃), yttrium hexaferrite with a hexagonal crystal lattice (h-YFeO₃), iron-yttrium garnet (Y₃Fe₅O₁₂), and iron oxides such as hematite and maghemite. The study examines the local composition and determines the orientation ratios between the crystallized phases and the substrate. The films with a thickness greater than 10 nm predominantly exhibit a highly textured phase of o-YFeO₃ with a small admixture of iron-yttrium garnet.

Vorheriger Artikel The Effect of Multidirectional Forging on the Microstructure and Superplasticity of the Al–Mg–Si–Cu System Alloys with Different Contents of Mg and Si

Nächster Artikel Short-Range Order and Its Stability in a Soft-Magnetic Iron–Gallium Alloy

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Titel: Microstructure Features of Yttrium Orthoferrite Thin Films on Sapphire
verfasst von: A. L. Vasiliev
I. A. Subbotin
A. O. Belyaeva
Yu. M. Chesnokov
V. V. Izyurov
K. A. Merentsova
M. S. Artemiev
S. S. Dubinin
A. P. Nosov
E. M. Pashaev
Publikationsdatum: 01.01.2024
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 1/2024
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X23602287

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