Electronic stopping

electronic_stopping sets the option for doing a radiation cascade simulation where the electronic stopping and electronic energy loss will be taken into account. This is typically invoked while simulating collision cascades of atoms. The forces on atoms is given by the following equation where the second term on the right side is friction depending on the electronic stopping power:

      \begin{equation}

\label{Eqn:vdependentFriction} \mathbf{F}_I = -\mathbf{\nabla}_IU - S_e\frac{\mathbf{v}_I}{v_I} \end{equation} There are three input keywords for which inputs need to be provided if this calculation is invoked. These are as follows:

eel_cut, eel_freq_out, estop_filename.

Summary

Summary for electronic_stopping keyword

Required/optional	Type	Accepted values	Default	See also	Remarks
Optional	Boolean	.true. or .false.	.false.	eel_cut, eel_freq_out, estop_filename	Required functionality for simulating collision cascades

Example

electronic_stopping = .true.
eel_cut = 1.0
eel_freq_out = 10
estop_filename = 'stopping-data-file'