Khokhlova, M;
Bahmanpour, L;
Bachhawat, N;
Cooper, B;
Averbukh, V;
(2020)
Interatomic coulombic decay rate in endohedral complexes.
Journal of Physics B: Atomic, Molecular and Optical Physics
, 53
(18)
, Article 184002. 10.1088/1361-6455/ab9f0c.
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Abstract
Interatomic coulombic decay (ICD) in van der Waals endohedral complexes was predicted to be anomalously fast. However, the available theoretical calculations of the ICD rates in endohedral complexes only consider the equilibrium geometry, in which the encapsulated atom is located at the centre of the fullerene cage. Here we show analytically that the dominant contribution of the dipole plasmon resonance to ICD does not deviate from its equilibrium geometry value, while contributions of higher multipole plasmons to the ICD can be neglected for most atomic displacements possible for an endohedral complex at room temperature. This is in contrast to the behaviour predicted for ionic endohedral compounds. Our results show that the conclusion of the earlier works on the ultrafast character of the ICD in endohedral complexes holds generally for a wide range of geometries possible under a thermal distribution, rather than only for the equilibrium geometry.
Type: | Article |
---|---|
Title: | Interatomic coulombic decay rate in endohedral complexes |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1088/1361-6455/ab9f0c |
Publisher version: | https://doi.org/10.1088/1361-6455/ab9f0c |
Language: | English |
Additional information: | © 2020 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | interatomic coulombic decay, endohedral fullerenes, inner shell ionisation |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10108547 |
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