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Title: Superconductivity in Li{sub 3}Ca{sub 2}C{sub 6} intercalated graphite

Abstract

In this paper, we report the discovery of superconductivity in Li{sub 3}Ca{sub 2}C{sub 6}. Several graphite intercalation compounds (GICs) with electron donors, are well known as superconductors [T. Enoki, S. Masatsugu, E. Morinobu, Graphite Intercalation Compounds and Applications, Oxford University Press, Oxford, 2003]. It is probably not astonishing, since it is generally admitted that low dimensionality promotes high superconducting transition temperatures. Superconductivity is lacking in pristine graphite, but after charging the graphene planes by intercalation, its electronic properties change considerably and superconducting behaviour can appear. Li{sub 3}Ca{sub 2}C{sub 6} is a ternary GIC [S. Pruvost, C. Herold, A. Herold, P. Lagrange, Eur. J. Inorg. Chem. 8 (2004) 1661-1667], for which the intercalated sheets are very thick and poly layered (five lithium layers and two calcium ones). It contains a great amount of metal (five metallic atoms for six carbon ones). Its critical temperature of 11.15 K is very close to that of CaC{sub 6} GIC [T.E. Weller, M. Ellerby, S.S. Saxena, R.P. Smith, N.T. Skipper, Nat. Phys. 1 (2005) 39-41; N. Emery, C. Herold, M. d'Astuto, V. Garcia, Ch. Bellin, J.F. Mareche, P. Lagrange, G. Loupias, Phys. Rev. Lett. 95 (2005) 087003] (11.5 K). Both CaC{sub 6} and Li{sub 3}Ca{submore » 2}C{sub 6} GICs possess currently the highest transition temperatures among all the GICs.« less

Authors:
 [1];  [2];  [1];  [3];  [4];  [1];  [5]
  1. Laboratoire de Chimie du Solide Mineral (UMR CNRS 7555), Universite Henri Poincare Nancy I, B.P. 239, 54506-Vandoeuvre-les-Nancy Cedex (France)
  2. Laboratoire de Chimie du Solide Mineral (UMR CNRS 7555), Universite Henri Poincare Nancy I, B.P. 239, 54506-Vandoeuvre-les-Nancy Cedex (France). E-mail: Claire.Herold@lcsm.uhp-nancy.fr
  3. Laboratoire de Physique des Materiaux (UMR CNRS 7556), Universite Henri Poincare Nancy I, B.P. 239, 54506-Vandoeuvre-les-Nancy Cedex (France)
  4. Institut de Mineralogie et de Physique des Milieux Condenses (UMR CNRS 7590), Universite Pierre et Marie Curie (Paris 6), case 115, 4 place Jussieu, 75252 Paris Cedex 05 (France)
  5. (France)
Publication Date:
OSTI Identifier:
20784986
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 179; Journal Issue: 4; Other Information: DOI: 10.1016/j.jssc.2006.01.053; PII: S0022-4596(06)00080-6; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BINDING ENERGY; CALCIUM CARBIDES; CRITICAL TEMPERATURE; GRAPHITE; LAYERS; LITHIUM CARBIDES; MAGNETIZATION; SUPERCONDUCTIVITY; SUPERCONDUCTORS

Citation Formats

Emery, Nicolas, Herold, Claire, Mareche, Jean-Francois, Bellouard, Christine, Loupias, Genevieve, Lagrange, Philippe, and Ecole Europeenne d'Ingenieurs en Genie des Materiaux, Institut National Polytechnique de Lorraine, 6 rue Bastien Lepage, B.P. 630, 54010-Nancy Cedex. Superconductivity in Li{sub 3}Ca{sub 2}C{sub 6} intercalated graphite. United States: N. p., 2006. Web. doi:10.1016/j.jssc.2006.01.053.
Emery, Nicolas, Herold, Claire, Mareche, Jean-Francois, Bellouard, Christine, Loupias, Genevieve, Lagrange, Philippe, & Ecole Europeenne d'Ingenieurs en Genie des Materiaux, Institut National Polytechnique de Lorraine, 6 rue Bastien Lepage, B.P. 630, 54010-Nancy Cedex. Superconductivity in Li{sub 3}Ca{sub 2}C{sub 6} intercalated graphite. United States. doi:10.1016/j.jssc.2006.01.053.
Emery, Nicolas, Herold, Claire, Mareche, Jean-Francois, Bellouard, Christine, Loupias, Genevieve, Lagrange, Philippe, and Ecole Europeenne d'Ingenieurs en Genie des Materiaux, Institut National Polytechnique de Lorraine, 6 rue Bastien Lepage, B.P. 630, 54010-Nancy Cedex. Sat . "Superconductivity in Li{sub 3}Ca{sub 2}C{sub 6} intercalated graphite". United States. doi:10.1016/j.jssc.2006.01.053.
@article{osti_20784986,
title = {Superconductivity in Li{sub 3}Ca{sub 2}C{sub 6} intercalated graphite},
author = {Emery, Nicolas and Herold, Claire and Mareche, Jean-Francois and Bellouard, Christine and Loupias, Genevieve and Lagrange, Philippe and Ecole Europeenne d'Ingenieurs en Genie des Materiaux, Institut National Polytechnique de Lorraine, 6 rue Bastien Lepage, B.P. 630, 54010-Nancy Cedex},
abstractNote = {In this paper, we report the discovery of superconductivity in Li{sub 3}Ca{sub 2}C{sub 6}. Several graphite intercalation compounds (GICs) with electron donors, are well known as superconductors [T. Enoki, S. Masatsugu, E. Morinobu, Graphite Intercalation Compounds and Applications, Oxford University Press, Oxford, 2003]. It is probably not astonishing, since it is generally admitted that low dimensionality promotes high superconducting transition temperatures. Superconductivity is lacking in pristine graphite, but after charging the graphene planes by intercalation, its electronic properties change considerably and superconducting behaviour can appear. Li{sub 3}Ca{sub 2}C{sub 6} is a ternary GIC [S. Pruvost, C. Herold, A. Herold, P. Lagrange, Eur. J. Inorg. Chem. 8 (2004) 1661-1667], for which the intercalated sheets are very thick and poly layered (five lithium layers and two calcium ones). It contains a great amount of metal (five metallic atoms for six carbon ones). Its critical temperature of 11.15 K is very close to that of CaC{sub 6} GIC [T.E. Weller, M. Ellerby, S.S. Saxena, R.P. Smith, N.T. Skipper, Nat. Phys. 1 (2005) 39-41; N. Emery, C. Herold, M. d'Astuto, V. Garcia, Ch. Bellin, J.F. Mareche, P. Lagrange, G. Loupias, Phys. Rev. Lett. 95 (2005) 087003] (11.5 K). Both CaC{sub 6} and Li{sub 3}Ca{sub 2}C{sub 6} GICs possess currently the highest transition temperatures among all the GICs.},
doi = {10.1016/j.jssc.2006.01.053},
journal = {Journal of Solid State Chemistry},
number = 4,
volume = 179,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}