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Fast atomic EELS analysis across the GaN/AlGaN interface

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. Giuseppe Nicotra at IMM-CNR, Catania, Italy Microscope courtesy of Dr. Giuseppe Nicotra at IMM-CNR, Catania, Italy

Methods
Fast Joint EELS / EDS color map of a SrTiO3 crystal

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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.

Methods
Fast joint EELS / EDS color map across a 32 nm transistor device

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Dr. Pavel Potapov at Global Foundries, Dresden, Germany 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.

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

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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.

Methods
Fast joint EELS/EDS color map across SrTiO3/LaFeO3/LaCuOx interfaces

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of by 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.

Methods
Ultrafast giant atomic EELS color map across the SrTiO3/LaMnO4 interfaces

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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 Acknowledgement to Dr. P. Rice and Dr. T. Topuria at IBM (Almaden) for helping set up microscope for experiment.

Legend

Green: Ti L at 456 eV; red: Sr L at 1940 eV; purple: La M at 832 eV; blue: Mn L at 640 eV

Methods
Atomic Resolved EELS color map of GaAs/Ga2O3

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of University of Glasgow Microscope courtesy of Dr. Yan Xin at Florida State University, Tallahassee, FL Acknowledgement to Dr. Toshiro Aoki at Jeol USA (now at ASU) for helping set up microscope for experiment.

Dumbbell structure of GaAs on left hand side of color map is clearly resolved, and Ga and As atomic columns are visible. Interface region shows presence of Ga2O monolayer responsible for keeping Fermi level unpinned, which allows the electronic device to be turned on or off.
Atomic level EELS color map of a Pt/Ru catalyst nanoparticle

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton ON, Canada Acknowledgement to Dr. Andreas Korinek at CCEM for helping set up microscope for experiment.

Methods
EELS color map of a Pt/Fe catalyst nanoparticle

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton, ON, Canada Acknowledgement to Dr. M. Bugnet at CCEM for helping set up microscope for experiment.

Pt/Fe nanocatalysts are among the most promising candidates for accelerating oxygen reduction reaction occurring at the cathode in a proton exchange membrane fuel cell.
EELS color map of a Pt/Au catalyst nanoparticle

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Paolo Longo, Ph.D., Gatan, Inc. Sample courtesy of Professor Gianluigi Botton at CCEM, Hamilton, ON, Canada Microscope courtesy of CCEM, Hamilton, ON, Canada Acknowledgement to Dr. Andreas Korinek at CCEM for helping set up microscope for experiment.

EELS data taken using a probe and image-corrected FEI Titan TEM/STEM microscope equipped with X-FEG emission gun and a fully loaded GIF Quantum® ERS system. Au M4,5-edges at 2206 eV (red) and Pt M4,5-edges at 2206 eV (red).
Methods