Nikonov, Konstantin, Ehlen, Niels, Senkovskiy, Boris, Saigal, Nihit, Fedorov, Alexander ORCID: 0000-0002-9228-7082, Nefedov, Alexei, Woell, Christof, Di Santo, Giovanni, Petaccia, Luca and Grueneis, Alexander (2018). Synthesis and spectroscopic characterization of alkali-metal intercalated ZrSe2. Dalton Trans., 47 (9). S. 2986 - 2992. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1477-9234

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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 A(1g) and E-g phonon modes, the disappearance of two-phonon modes and new low wavenumber Raman modes. Angle-resolved photo-emission spectroscopy is used to perform a mapping of the Fermi surface revealing an electron concentration of 4.7 x 10(14) 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.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Nikonov, KonstantinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ehlen, NielsUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Senkovskiy, BorisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Saigal, NihitUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fedorov, AlexanderUNSPECIFIEDorcid.org/0000-0002-9228-7082UNSPECIFIED
Nefedov, AlexeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Woell, ChristofUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Di Santo, GiovanniUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Petaccia, LucaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grueneis, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-192956
DOI: 10.1039/c7dt03756b
Journal or Publication Title: Dalton Trans.
Volume: 47
Number: 9
Page Range: S. 2986 - 2992
Date: 2018
Publisher: ROYAL SOC CHEMISTRY
Place of Publication: CAMBRIDGE
ISSN: 1477-9234
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
BLACK PHOSPHORUS; SUPERCONDUCTIVITY; DICHALCOGENIDES; GRAPHITEMultiple languages
Chemistry, Inorganic & NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/19295

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