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Unit Cell size
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Topic: Unit Cell size (Read 4552 times)
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Nayab Shiraz
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Unit Cell size
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on:
July 1, 2020, 23:36 »
How to select the size of unit cell? I assume enough vacuum around the actual structure is needed. If my results change with change in size of unit cell, do I need to keep increasing the lattice parameters for convergence?
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mlee
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Re: Unit Cell size
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Reply #1 on:
July 3, 2020, 08:18 »
If you need to confirm the vacuum size around the actual structure, you can analyze the HatreeDifferencePotential or ElectrostaticDifferencePotential to see the convergence.
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Nayab Shiraz
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Re: Unit Cell size
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Reply #2 on:
July 4, 2020, 20:41 »
Thank you so much. Do you mean that these quantities should not change with further increase in size?
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mlee
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Re: Unit Cell size
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Reply #3 on:
July 6, 2020, 06:55 »
You will see the convergence (constant) near the boundary through the HartreeDifferencePotential or ElectrostaticDifferencePotential analysis if it has proper vacuum length.
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Unit Cell size