Electron affinity of the hafnium atom

2018/08/06 by Rulin Tang, Xiaolin Chen, Xiaoxi Fu +2 · 4 citations
Chemistry · Physics and Astronomy · Engineering · #Mass Spectrometry Techniques and Applications #Atomic and Molecular Physics #Laser-induced spectroscopy and plasma

paper · doi:10.1103/physreva.98.020501

openalex publication_date 2018/08/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Hafnium is the last transition-metal element with an undetermined electron affinity. Using a slow-electron velocity-map imaging spectrometer equipped with a cold ion trap, the electron affinity of hafnium atoms is measured to be 1436(5)\phantom\rule0.16em0excm^\ensuremath-1 or 0.1780(6) eV. The cold ion trap employed in the present measurement is found to be crucial for reducing the background noise from the hafnium hydride anions.

Citations

• Precision measurement of the electron affinity of niobium

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• Electron affinity (data page) [wikipedia]