Surface-electronic structure of La(0001) and Lu(0001)

TL;DR

This study combines low-temperature scanning tunneling spectroscopy and ab initio calculations to precisely analyze the surface-electronic structure of La(0001) and Lu(0001), overcoming limitations of traditional spectroscopic methods near the Fermi level.

Contribution

It introduces a combined experimental and theoretical approach to accurately probe surface-electronic states close to the Fermi energy in La(0001) and Lu(0001).

Findings

Detailed surface-electronic structures near the Fermi level were obtained.

The method overcomes the limitations of traditional spectroscopic techniques.

High-precision data close to the Fermi energy was achieved.

Abstract

Most spectroscopic methods for studying the electronic structure of metal surfaces have the disadvantage that either only occupied or only unoccupied states can be probed, and the signal is cut at the Fermi edge. This leads to significant uncertainties, when states are very close to the Fermi level. By performing low-temperature scanning tunneling spectroscopy and ab initio calculations, we study the surface-electronic structure of La(0001) and Lu(0001), and demonstrate that in this way detailed information on the surface-electronic structure very close to the Fermi energy can be derived with high accuracy.