Polaron nature of critical size of ammonia cluster

✍ Scribed by N.K. Balabaev; V.D. Lakhno

• Book ID: 103034098
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 327 KB
• Volume: 240
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00575-o

✦ Synopsis

A consistent polaron model is shown to result in a critical size of a cluster made of polar molecules. Over this size the existence of a bound state of an excess electron inside the cluster is possible. In the case of an ammonia cluster composed of n molecules the theory predicts an appearance of a stable polaron state of excess electron at n = 35. This threshold value and photodetachment energies are in a good agreement with existing experimental data. The theory predicts also metastable states of the ammonia cluster anions for 21 < n < 35.