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

被引：6

作者：

Takeuchi, T

Tsuda, S

Yokoya, T

Tsukamoto, T

Shin, S

Hirai, A

Shamoto, S

Kajitani, T

机构：

[1] RIKEN, SPRING8, Soft Xray Spect Lab, Mikazuki, Hyogo 6795148, Japan

[2] Sci Univ Tokyo, Dept Appl Phys, Shinjuku Ku, Tokyo 1628601, Japan

[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[4] Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808579, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 392卷

关键词：

photoemission; soft X-ray emission; electronic structure; layered nitride chloride superconductor;

D O I：

10.1016/S0921-4534(03)00752-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have performed soft X-ray emission (SXE) and high-resolution photoemission (PE) spectroscopy to study the electronic structures of beta-HfNCl and Na-intercalated HfNCl. Both the PE and SXE spectra of Na0.37HfNCl show an additional structure within the band gap of beta-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. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：127 / 129

页数：3

共 9 条

[1] Spectrometer for polarized soft X-ray Raman scattering [J].