Epitaxial Growth of CaMnO<sub>3–<i>y</i></sub> Films on LaAlO<sub>3</sub>(112¯0) by Pulsed Direct Current Reactive Magnetron Sputtering

نویسندگان

چکیده

CaMnO 3 is a perovskite with attractive magnetic and thermoelectric properties. films are usually grown by pulsed laser deposition or radio frequency magnetron sputtering from ceramic targets. Herein, epitaxial growth of 3– y (002) on ‐oriented LaAlO substrate using direct current reactive demonstrated, which more suitable for industrial scale depositions. The shows small in‐plane tilt &lt;≈0.2° toward the (200) plane () respect to substrate. X‐ray photoelectron spectroscopy electronic core levels an oxygen deficiency described 2.58 that yields lower Seebeck coefficient higher electrical resistivity when compared stoichiometric . promotes tensile‐strained single crystals. Scanning transmission electron microscopy energy loss reveal antiphase boundaries composed Ca Mn sites along &lt;101&gt; &lt;002&gt;, forming stacking faults.

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ژورنال

عنوان ژورنال: Physica Status Solidi (rrl)

سال: 2022

ISSN: ['1862-6254', '1862-6270']

DOI: https://doi.org/10.1002/pssr.202100504