Synthesis conditions of graphite intercalation compound with Ca in molten Li-Ca alloy and its superconducting characteristics

• Toyoda Masahiro

  Oita University

• Takenaka Asami

  Oita University

• Takano Yoshihiko

  National Institute for Materials Science

• Akuzawa Noboru

  Tokyo National College of Technology

• Yoshida Akira

  Musashi Institute of Technology

• Kaburagi Yutaka

  Musashi Institute of Technology

Abstract

Binary intercalation compound CaC₆ was synthesized by soaking the platelet of HOPG into the molten Li-Ca alloy (Li/Ca=4.0) at 350°C for a long soaking (more than 10 days). The C ompound CaC₆ thus synthesized was confirmed to be superconductive with the critical temperature of about 10 K. For the synthesis of the superconductive intercalation compound CaC₆, the crystallinity of the host graphite has to be selected and long soaking in molten Li-Ca alloy is also required. Superconductivity of CaC₆ was supposed to belong in second type.

Journal

• TANSO

  TANSO 2008 (233), 148-150, 2008

  THE CARBON SOCIETY OF JAPAN

Keywords

• Highly oriented pyrolytic graphite
• Intercalation
• X-ray diffraction
• Superconductivity

Details

• CRID: 1390001204226193280
• NII Article ID: 130004358747
• NII Article ID: 10021127834
• NII Book ID: AN00140335
• DOI: 10.7209/tanso.2008.148
• ISSN: 18845495
• ISSN: 03715345
• NDL BIB ID: 9549980
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9549980
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed