Ion impact induced Interatomic Coulombic Decay in neon and argon dimers

2013/10/31 by H. -K. Kim, H. Gassert, M. S. Schöffler +16 · 1 citation
Physics and Astronomy · #physics.atm-clus #physics.atom-ph

paper · pdf · doi:10.1103/physreva.88.042707

published as Phys. Rev. A, 88, 042707, (2013)

arxiv created 2013/10/31 · arxiv updated 2013/11/01

Abstract

We investigate the contribution of Interatomic Coulombic Decay induced by ion impact in neon and argon dimers (Ne₂ and Ar₂) to the production of low energy electrons. Our experiments cover a broad range of perturbation strengths and reaction channels. We use 11.37 MeV/u S¹⁴⁺, 0.125 MeV/u He¹⁺, 0.1625 MeV/u He¹⁺ and 0.150 MeV/u He²⁺ as projectiles and study ionization, single and double electron transfer to the projectile as well as projectile electron loss processes. The application of a COLTRIMS reaction microscope enables us to retrieve the three-dimensional momentum vectors of the ion pairs of the fragmenting dimer into Ne^q+/Ne¹⁺ and Ar^q+/Ar¹⁺ (q = 1, 2, 3) in coincidence with at least one emitted electron.

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• Interatomic Coulombic decay initiated by electron removal and excitation processes in helium ion and argon dimer collisions