LSMO perovskite

Core loss (La_0.7,Sr_0.3)MnO₃ · Dominique Imhoff · added 2008-03-04 · Beam energy and angles known · History

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Edge onsets (exSpy) Minor edgesDrag to zoom, double-click to reset.

background removed calibration : 1- XAS energy reference from standard similar LSMO (maximum of MnL3 peak) 2- energy dispersion calibration of the detector from two peaks reference in low and core loss areas (STO substrate area in the multimayer system). see also LaM,OK Analyst: imhoff. Temperature: Room.

Use in HyperSpy

import exspy

spectra = exspy.data.eelsdb(title="LSMO perovskite", formula="(La0.7,Sr0.3)MnO3")
s = next(sp for sp in spectra if sp.original_metadata.json.id == 21737)
s.plot(plot_edges=True)

Specimen

Formula: (La_0.7,Sr_0.3)MnO₃
Elements: La, Sr, Mn, O
Edges: Mn L2,3
Source and purity: perovskite multilayers UMP CNRS-Thales Palaiseau France (laser ablation)
Energy range: 633.29 – 662.4 eV
Step: 0.229 eV

Keywords

imported from old site

Treatment

Dark current corrected: Yes
Gain variation corrected: No

Acquisition

Microscope: STEM-VG
Gun: Cold FEG
Beam energy: 100 kV
Convergence semi-angle: 7 mrad
Collection semi-angle: 22 mrad
Mode: STEM
Detector: Parallel: 666 + CCD modified Orsay
Probe size: 0.7 nm²
Integration time: 0.2 s
Readouts: 10

Reference

EELS study of interfaces in magnetoresistive LSMO/STO/LSMO tunnel junctions Samet L., Imhoff D., Maurice J-L., Contour J-P., Gloter A., Manoubi T., Fert A., Colliex C., European-Physical-Journal-B., 34(2), 179-92, 2003