Interactions of deposited Ca with TiSe 2 and TiTe 2 surfaces

The interaction of evaporated Ca with TiSe 2 and TiTe 2 surfaces was studied using photoelectron spectroscopy. The surfaces were held at room temperature, and the measured spectra clearly show that the deposited Ca reacted with the substrates, without formation of any Ca overlayers. For depositions...

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Bibliographic Details
Published in:Journal of physics communications 2023-02, Vol.7 (2), p.25006
Main Author: Starnberg, H I
Format: Article
Language:English
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Summary:The interaction of evaporated Ca with TiSe 2 and TiTe 2 surfaces was studied using photoelectron spectroscopy. The surfaces were held at room temperature, and the measured spectra clearly show that the deposited Ca reacted with the substrates, without formation of any Ca overlayers. For depositions on TiSe 2 corresponding to less than 2 nm of Ca there were indications of an intercalation reaction taking place, with charge transfer to the TiSe 2 layers, but as more Ca was added a layer-breaking reaction dominated. For the case of TiTe 2 only a large Ca deposition was studied, resulting in a layer-breaking reaction very similar to that found on the TiSe 2 surface for similar amounts of deposited Ca.
ISSN:2399-6528
2399-6528
DOI:10.1088/2399-6528/acbc65