Hi,
From some posts I learn VASP 4.6 support external electric field by entering EFIELD = xxx (eV/A).
I am not sure what this unit means. eV/A -- electron volt per angstrom? If so, it is the unit of force, not electric field.
I wonder what e,V and A stands for? Does anyone know this?
Thank you very much
EFIELD unit
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zlch5
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EFIELD unit
Last edited by zlch5 on Thu Mar 09, 2006 10:43 pm, edited 1 time in total.
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ccmin4
EFIELD unit
yes, i not sure too. For example is i want to set the external electric field to 0.8 V/A
0.8 V/A = 5000000000000000000 eV/A ?
0.8 V/A = 5000000000000000000 eV/A ?
Last edited by ccmin4 on Mon Aug 31, 2009 6:37 am, edited 1 time in total.
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sim
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EFIELD unit
I also want to know the answer. Does anyone know? Thanks a lot in advance. 
<span class='smallblacktext'>[ Edited Mon Oct 26 2009, 02:07AM ]</span>
<span class='smallblacktext'>[ Edited Mon Oct 26 2009, 02:07AM ]</span>
Last edited by sim on Mon Oct 26, 2009 1:06 am, edited 1 time in total.
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yjwang
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EFIELD unit
It means the strength of the electric field and this value equates the force acting on a unit charge.
1eV/A = 1V/A times 1e.
1eV/A = 1V/A times 1e.
Last edited by yjwang on Wed Apr 14, 2010 2:26 pm, edited 1 time in total.