SPECTROSCOPY OF A SINGLE ADSORBED ATOM

被引：104

作者：

CROMMIE, MF

LUTZ, CP

EIGLER, DM

机构：

[1] IBM Research Division, Almaden Research Center, San Jose, CA 95120

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.48.2851

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have used a low-temperature ultrahigh-vacuum scanning tunneling microscope to perform atomically localized spectroscopic measurements on single Fe atoms adsorbed onto the Pt(111) surface. Using a simple tunneling model, we are able to quantitatively deconvolute the tip and adatom local densities of states (LDOS) from the dI/dV spectra. We find that a resonance occurs in the adatom LDOS that is centered 0.5 eV above the Fermi energy. This feature has a width of approximately 0.6 eV, and occurs only when the tip is within angstroms (laterally) of the center of an Fe adatom.

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页码：2851 / 2854

页数：4

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