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The SXRD patterns of the LaMnO3−δ films grown under oxygen pressures of (a) 10 Pa, (b) 5 × 10−1 Pa, (c) 5 × 10−2 Pa, (d) 5 × 10−3 Pa, and (e) 5 × 10−4 Pa; (f) the oxygen-pressure-dependent c-axis lattice constant deduced from the SXRD patterns. The vertical dot line denotes the (001) peaks of SNTO.
The XANES spectra of the LaMnO3−δ films grown under different oxygen pressures: (a) the K-edge and (b) the LII , III -edge spectra of Mn ions; (c) The LII , III -edge spectra of Mn ions in LSMO films. The dashed-dotted arrow line in (a) denotes the variation trend of the main peaks of the K-edge of Mn ions, and the vertical solid lines in (b) and (c) stand for the peak positions of the LIII -edge spectra of Mn ions.
(a) The temperature-dependent magnetization (100 Oe, field cooled) and (b) hysteresis loops (10 K) of the LaMnO3−δ films grown under different oxygen pressures; (c) The oxygen-pressure-dependent Curie temperature (TC ) (circle-red-line) and saturation magnetization (Ms , 10 K) (square-blue-line) of the LaMnO3−δ films.
The I-V curves of LaMnO3−δ films grown under different oxygen pressures of 10 Pa (red-line), 5 × 10−1 Pa (green-line), 5 × 10−2 Pa (blue-line), 5 × 10−3 Pa (magenta-line), and 5 × 10−4 Pa (olive-line).
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