Dear all,
I have a question regarding the electric field. I have a system of 100 liquid crystals which are confined in between two plates. I would like to use electric field along x direction on LCs.
If I use
fix kick LC efield 1.0 0.0 0.0
then, the idea is like every atoms of a LC molecule will encounter Force along x direction, Fx= charge of the atom *1.0 ; Is the force equivalent to the experimental situation where 1.0 volt/Angstrom field is used?
With best regards,
Pritam
Dear all,
I have a question regarding the electric field. I have a system of 100
liquid crystals which are confined in between two plates. I would like to
use electric field along x direction on LCs.
If I usefix kick LC efield 1.0 0.0 0.0
then, the idea is like every atoms of a LC molecule will encounter Force
along x direction, Fx= charge of the atom *1.0 ; Is the force equivalent to
the experimental situation where 1.0 volt/Angstrom field is used?
you are just a unit conversion away from determining that yourself.
that said, i am curious: what kind of experiment uses such high field
strengths in the magnitude of volts per angstrom (or rather 10 GV/m)?
axel.
Dear Axel,
No,no. There is no such experiment where the field is so high. Just I am trying to compare with experiment.
The main concern is like that: I use real unit.
When I use the command
fix kick LC efield 0.01 0.0 0.0
i,e. 0.01 v/Angstrom, I do not see any effect. I was curious to increase the field. However, experimentally it will be too high. Therefore, I am trying to figure out that LAMMPS real unit and experiment electric field are exactly similar or not?
With best,
Pritam