Frohlich resonance in carbon nanospiroids and the 2175 Å interstellar absorption feature

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:393

Article; Proceedings Paper

Yastrebov, Sergey¹  Chekulaev, Maxim¹  Siklitskaya, Alexandra²  Majewski, Jacek A.²  Smith, Roger³ 

[1] AF loffe Physicotech Inst, St Petersburg, Russia

[2] Inst Theoret Phys, Warsaw, Poland

[3] Loughborough Univ Technol, Sch Sci, Loughborough LE11 3TU, Leics, England

关键词: Collisions;    Nanoclusters;    Carbon;    Diamond;    Graphene;    Novel forms of carbon;   

DOI  :  10.1016/j.nimb.2016.09.008

来源: Elsevier

【 摘 要 】

This paper demonstrates that a free electron gas model accurately simulates the spectral dependence of optical extinction spectra for carbon spiroids under the assumption that free electrons are confined in an homogeneous spherical particle owing to the delocalisation of pi electrons that occurs in the actual spectral range. This effect can occur in the spiroid, rather than a spheroid (onion) due to the variable radii of the spiral turns as a function of distance from the centre, which are smaller than typical values for the spheroid. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free