Low energy electron emission from charge exchange of slow highly charged ions with solid surfaces

The interaction of slow ions with condensed matter leads to the emission of electrons with energies typically well below 20eV. In addition to electron emission from the slowing down of the ion (kinetic emission), charge exchange between a multiply charged ion and the target material can lead to a strong increase in electron yield driven by Interatomic Coulombic Decay (ICD). Recently, it was shown that the conversion of the internal potential energy of the ion into emission of electrons (potential emission) proceeds on the timescale of a few femtoseconds with prompt release of several dozens of low energetic electrons.
In this presentation I will give an overview of ion-induced electron emission from solid surfaces and present recent data on coincidence detection of ions and electrons after the transmission through freestanding monolayers of 2D materials.