Oxygen-vacancy-induced atomic and electronic reconstructions in magnetic Sr(Ti0.875Fe0.125)O3-δ thin films
Source abstract
Abstract
Abstract The atomic and electronic structures have been investigated for the multiferroic behavior in the perovskite oxides, which also can be tuned by oxygen vacancy for enhancing properties. Here epitaxial Sr(Ti0.875Fe0.125)O3-δ thin films were deposited on (001) SrTiO3 substrates by pulsed laser deposition and were post-annealed in an oxygen atmosphere. We found that the oxygen vacancies formed in high vacuum are the source of the macroscopic crystal distortion as the growth strain along out-of-plane. Moreover, it was determined that the full-filled Fe 3d states induced by oxygen vacancy effect are responsible for the decreased magnetization. This work demonstrates that the oxygen vacancy can both lead to atomic and electronic reconstructions in the perovskite films for manipulating ferroic properties.
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Research context
OpenAlex topics: Multiferroics and related materials · Magnetic and transport properties of perovskites and related materials · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
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