Accurate electron affinity of V and fine-structure splittings of V- via slow-electron velocity-map imaging

作者：Fu, Xiaoxi; Luo, Zhihong^*; Chen, Xiaolin; Li, Jiaming; Ning, Chuangang^*

来源：Journal of Chemical Physics, 2016, 145(16): 164307.

DOI：10.1063/1.4965928

• HIGH-RESOLUTION PHOTODETACHMENT
• ATOMIC NEGATIVE-IONS
• LASER PHOTODETACHMENT
• BINDING-ENERGIES
• COLD ANIONS
• SPECTROSCOPY
• PHOTOELECTRON
• STATES
• TRANSITION
• AUTODETACHMENT

We report the high-resolution photoelectron spectra of negative vanadium ions obtained via the slow-electron velocity-map imaging method. The electron affinity of V was determined to be 4255.9(18) cm(-1) or 0.527 66(20) eV. The accuracy was improved by a factor of 60 with regard to the previous measurement. The fine structure of V- was well resolved: 35.9(11) (D-5(1)), 103.8(12) (D-5(2)), 204.17(74) (D-5(3)), and 330.58(40) cm(-1) (D-5(4)) above the ground state D-5(0), respectively. Published by AIP Publishing.

• 出版日期2016-10-28
• 单位低维量子物理国家重点实验室; 清华大学