Differential Mobility Analysis of C60 Negative Ion in He, Ne, and Ar
An anomalous behavior was found in the electrical mobilities of C60 negative ions in He, Ne, and Ar gas measured using a differential mobility analyzer (DMA). The measured inverse mobilities were larger than those calculated with a hard-sphere collision model. We suggested that this anomalous behavior could be ascribed to the potential force of interactions between the C60 negative ion and the gas molecule. Additionally, a method of ab initio calculation of potential energies between the C60 negative ion and the sheath gas molecule was developed, to quantitatively understand the anomalous behavior.
- Japanese journal of applied physics. Pt. 1, Regular papers & short notes
Japanese journal of applied physics. Pt. 1, Regular papers & short notes 45(9A), 7243-7245, 2006-09-15
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics