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Superconductivity in Layered Structures of Rare‐Earth Carbide Halides
Author(s) -
Simon Arndt,
Mattausch Hansjürgen,
Eger Roland,
Kremer Reinhard K.
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199111881
Subject(s) - superconductivity , octahedron , halogen , carbide , halide , rare earth , metal , electron , materials science , crystallography , phase (matter) , chemical physics , condensed matter physics , chemistry , inorganic chemistry , crystal structure , physics , metallurgy , nuclear physics , organic chemistry , alkyl
Densely packed double layers of metal atoms (M = Y, La, Lu), C 2 groups in the octahedral holes formed by them, and layers of halogen atoms (X) over those of the M atoms provides a good description of the structure of the M 2 C 2 X 2 phase shown on the right. The finding that these two‐dimensional metallic systems can be super‐conducting, can contribute enormously to an understanding of the attraction between conducting electrons in superconductors.