Extended Data Fig. 7: EDX measurements.
From: RETRACTED ARTICLE: Evidence of near-ambient superconductivity in a N-doped lutetium hydride
For EDX measurements, samples were prepared by mounting on an aluminium pin mount with double-sided carbon tape. The samples were then imaged using a Zeiss Auriga scanning electron microscope. Regions of interest were chosen by comparing the scanning electron microscopy image to a white-light image taken beforehand. EDX measurements were performed in the Zeiss Auriga scanning electron microscope with a driving energy of 15 kV and collected and analysed using an EDAX detector with the EDAX APEX software. Carbon and aluminium peaks seen in the EDX spectra originating from the carbon tape and aluminium mount required to place the samples into the scanning electron microscope vacuum chamber. EDX measurements provide further evidence for the presence of nitrogen in our samples.
