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  Electronic instabilities in lithium intercalated ZrSe2

Felser, C., Deniard, P., Bäcker, M., Ohm, T., Rouxel, J., & Simon, A. (1998). Electronic instabilities in lithium intercalated ZrSe2. Journal of Materials Chemistry, 8(5), 1295-1301. doi:10.1039/a708715b.

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Felser, Claudia1, Author              
Deniard, Philippe2, Author
Bäcker, Michael2, Author
Ohm, Thorsten2, Author
Rouxel, Jean2, Author
Simon, Arndt2, Author
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1External Organizations, ou_persistent22              
2external, ou_persistent22              

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 Abstract: We have followed the evolution of the superconducting T-c on intercalation of Li in ZrSe2 by means of magnetization studies at very low temperatures. To interpret the electronic structure and instabilities, we present the results of extensive LMTO-ASA band structure calculations on ZrSe2 and the idealized compound LiZrSe2. The experimental results suggest a picture of phase segregation in the intercalated samples into regions where Li atoms are a part of the percolating cluster and regions where the Li are not. The electronic structure calculations help to understand the nature of the bonding in this system and in particular, the nature of instabilities on the Fermi surface in the intercalated compounds. In keeping with certain models for the occurrence of superconductivity in systems whose electronic structures combine localized and itinerant behaviour, the title compounds display regions of high and low dispersion in the Fermi surface. A comparison with the superconducting spinel LiTi2O4 is particularly fruitful.

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 Dates: 1998-05-01
 Publication Status: Published in print
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 Identifiers: ISI: 000073685000031
DOI: 10.1039/a708715b
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Title: Journal of Materials Chemistry
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 8 (5) Sequence Number: - Start / End Page: 1295 - 1301 Identifier: ISSN: 0959-9428
CoNE: https://pure.mpg.de/cone/journals/resource/954925273429