Soft X-ray emission and high-resolution photoemission study of quasi-two-dimensional superconductor NaxHfNCl

T. Takeuchi, S. Tsuda, Takayoshi Yokoya, T. Tsukamoto, S. Shin, A. Hirai, S. Shamoto, T. Kajitani

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have performed soft X-ray emission (SXE) and high-resolution photoemission (PE) spectroscopy to study the electronic structures of β-HfNCl and Na-intercalated HfNCl. Both the PE and SXE spectra of Na 0.37HfNCl show an additional structure within the band gap of β-HfNCl, without an apparent shift in the energy position of valence-band features. These results clearly reveal intercalant-induced changes in the electronic structure of the layered nitride chlorides. From these results, we propose non-rigid band like behavior for this system in contrast to generally expected rigid-band filling upon intercalation.

Original languageEnglish
Pages (from-to)127-129
Number of pages3
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - Oct 2003
Externally publishedYes

Fingerprint

Photoemission
Superconducting materials
Electronic structure
photoelectric emission
X rays
high resolution
Intercalation
Photoelectron spectroscopy
Valence bands
Nitrides
Chlorides
Energy gap
x rays
electronic structure
intercalation
nitrides
emission spectra
chlorides
valence
shift

Keywords

  • Electronic structure
  • Layered nitride chloride superconductor
  • Photoemission
  • Soft X-ray emission

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Soft X-ray emission and high-resolution photoemission study of quasi-two-dimensional superconductor NaxHfNCl. / Takeuchi, T.; Tsuda, S.; Yokoya, Takayoshi; Tsukamoto, T.; Shin, S.; Hirai, A.; Shamoto, S.; Kajitani, T.

In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 127-129.

Research output: Contribution to journalArticle

Takeuchi, T. ; Tsuda, S. ; Yokoya, Takayoshi ; Tsukamoto, T. ; Shin, S. ; Hirai, A. ; Shamoto, S. ; Kajitani, T. / Soft X-ray emission and high-resolution photoemission study of quasi-two-dimensional superconductor NaxHfNCl. In: Physica C: Superconductivity and its Applications. 2003 ; Vol. 392-396, No. PART 1. pp. 127-129.
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AU - Shin, S.

AU - Hirai, A.

AU - Shamoto, S.

AU - Kajitani, T.

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