LOCAL PROBING OF ADSORBATE ELECTRONIC-STRUCTURE USING SOFT-X-RAY EMISSION - ATOMIC NITROGEN ON NI(100) AND CU(100)

被引：32

作者：

WIELL, T ^{[1
]}

TILLBORG, H ^{[1
]}

NILSSON, A ^{[1
]}

WASSDAHL, N ^{[1
]}

MARTENSSON, N ^{[1
]}

NORDGREN, J ^{[1
]}

机构：

[1] UNIV UPPSALA,DEPT PHYS,BOX 530,S-75121 UPPSALA,SWEDEN

来源：

SURFACE SCIENCE | 1994年 / 304卷 / 03期

关键词：

D O I：

10.1016/0039-6028(94)91326-9

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 N 2p partial density of states of p4g-N/Ni(100) and c(2 x 2)-N/Cu(100) overlayers have been studied by soft X-ray emission spectroscopy (SXES) and comparisons with corresponding UV photoelectron spectra are made. Broad states (approximately 10 eV) are observed due to the hybridisation between the N 2p and the substrate 3d and 4sp bands. For both N/Cu and N/Ni the intensity stretches out to the Fermi level, where a prominent peak for N/Cu is observed. These states close to the Fermi level are interpreted as antibonding 2p-3d hybridised states. The higher occupancy of these states in N/Cu is expected due to the higher binding energy of the 3d band in Cu than in Ni. For a complete interpretation of the SXE spectra, especially for N/Cu where many features are observed, further theoretical studies are required.

引用

页码：L451 / L455

页数：5

共 22 条

[1] SURFACE PHONON-DISPERSION AND ADSORBATE INDUCED RECONSTRUCTION OF NI(100) [J].