Fast Joint EELS / EDS color map of a SrTiO3 crystal
Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. Yan Xin at Florida State University, Tallahassee, FL Microscope courtesy of Professor Gerald Kothleitner, TU-Graz, Austria Acknowledgement to Dr. Arno Meingast at CCEM, TU-Graz, Austria for helping set up microscope for experiment.

Fast Joint EELS / EDS color map of a SrTiO3 crystal

Methods

probe-corrected FEI Titan TEM/STEM microscope
X-FEG emission gun
GIF Quantum® ERS system
four quadrant SDD EDS detectors (FEI Chemistem)
Ti (green); Sr (red)
voltage: 200 kV
data taken in STEM mode
EELS low core-loss spectrum (300 – 2300 eV): 10 ms
dataset size: 70 x 57 pixels
beam current: 200 pA