EELS color map of a magnetic device

Legend

Cu L at 931 eV (grey); O K at 532 eV (red); N K at 401 eV (light blue); Ti L at 456 eV (green); Co L at 779 eV (blue)

Methods

JEOL 2010 TEM/STEM microscope; LaB6 emission gun; GIF Quantum^® ER system; voltage: 200 kV; STEM mode; EELS core-loss spectrum (300 – 2300 eV) exposure time: 0.5 ms; dataset size: 520 x 520 pixels; total exposure time: <5 min