Structural study on novel two-dimensional superconductor NaxHfNCl

S. Shamoto, K. Iizawa, M. Yamada, K. Ohoyama, Y. Yamaguchi, T. Kajitani

Research output: Contribution to journalConference articlepeer-review

36 Citations (Scopus)

Abstract

The structure of the novel two-dimensional superconductor, NaxHfNCl (x = 0.29, Tc = 20 K) is determined by powder neutron diffraction measurement. NaxHfNCl is isomorphous to Li0.16ZrNCl, which also exhibits superconductivity with Tc = 15 K. The nearest interatomic distance of Hf-Hf (3.24 angstrom at 4 K) is longer than that of Zr-Zr (3.10 angstrom at 4 K) in Li0.16ZrNCl. This structural change corresponds to the decrease in the transfer integral of the d bands in the Hf system, i.e. tHf/tZr approx. 0.85, indicating the enhancement of the density of states in NaxHfNCl.

Original languageEnglish
Pages (from-to)1431-1433
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume60
Issue number8
DOIs
Publication statusPublished - 1999
EventProceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn
Duration: 1998 Nov 241998 Nov 27

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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