Soft X-ray photoelectron spectroscopy study of Fe2P(0001)

被引：5

作者：

Sugizaki, Y. ^{[1
]}

Ishida, S. ^{[1
]}

Kakefuda, Y. ^{[1
,2
]}

Edamoto, K. ^{[1
,2
]}

Matsunami, M. ^{[3
]}

Hajiri, T. ^{[3
,4
]}

Kimura, S. ^{[3
]}

机构：

[1] Rikkyo Univ, Dept Chem, Toshima Ku, Tokyo 1718501, Japan

[2] Rikkyo Univ, Res Ctr Smart Mol, Toshima Ku, Tokyo 1718501, Japan

[3] Inst Mol Sci, UVSOR Facil, Okazaki, Aichi 4448585, Japan

[4] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

来源：

SURFACE SCIENCE | 2014年 / 624卷

关键词：

Photoelectron spectroscopy; Surface electronic phenomena; Phosphides; Low index single crystal surfaces; ELECTRONIC-STRUCTURE; PHOTOEMISSION; SURFACE; NI2P(001); CATALYSTS; STM;

D O I：

10.1016/j.susc.2014.01.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electronic structure of Fe2P(0001) has been investigated by photoelectron spectroscopy (PES) utilizing synchrotron radiation. In the valence band (VB) spectra, an Fe 3d-P 3p hybrid band (main band) was observed at 0-3 eV independent of photon energy, and satellites were observed at 4.5 and 7 eV at hv < 55 eV. The satellites showed a resonant behavior around the Fe 3p threshold, and are associated with the photoemission process leading to two-hole bound final states. The slight Ar+ ion sputtering (1 kV, 5 min) induced little change in VB spectra, while core-level PES study showed that the P atoms in the surface region were selectively removed. This suggests that the stabilization of the metal sites due to the bonding with P atoms is ineffective on Fe2P(0001), unlike the situation reported earlier for Ni2P. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：21 / 24

页数：4

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