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Fast joint EELS / EDS color map across the SrTiO3/LaFeO3 interfaces

Methods

probe-corrected Jeol ARM 200 TEM/STEM microscope
C-FEG emission gun
GIF Quantum® ER system
Sr L at 1940 eV (red); Ti L at 456 eV (green); Fe L at 708 eV (light blue); La M at 832 eV (orange)
voltage: 200 kV
data taken in STEM mode
EELS core-loss spectrum (300 – 2300 eV): 5 ms
EDS spectrum (0 – 20 keV): 5 ms
beam current: 200 pA

Authored by

Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA Microscope courtesy of Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA Acknowledgements to Dr. P. Rice and Dr. T. Topuria at IBM (Almaden), San Jose, CA for helping set up microscope for experiment.
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