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Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

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Abstract

We report on the synthesis and spectroscopic characterization of alkali metal intercalated ZrSe2 single crystals. ZrSe2 is produced by chemical vapour transport and then Li is intercalated. Intercalation is performed from the liquid phase (via butyllithium) and from the vapour phase. Raman spectroscopy of intercalated ZrSe2 reveals phonon energy shifts of the Raman active A1g and Eg phonon modes, the disappearance of two-phonon modes and new low wavenumber Raman modes. Angle-resolved photoemission spectroscopy is used to perform a mapping of the Fermi surface revealing an electron concentration of 4.7 × 1014 cm−2. We also perform vapour phase intercalation of K and Cs into ZrSe2 and observe similar changes in the Raman modes as for the Li case.

Graphical abstract: Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

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Publication details

The article was received on 09 Oct 2017, accepted on 27 Nov 2017 and first published on 28 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03756B
Citation: Dalton Trans., 2018, Advance Article
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    Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

    K. Nikonov, N. Ehlen, B. Senkovskiy, N. Saigal, A. Fedorov, A. Nefedov, C. Wöll, G. Di Santo, L. Petaccia and A. Grüneis, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C7DT03756B

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