Hi Asad,

did you consider to include a dipole correction? Or maybe using the new 2D cutoff technique? I think that this might be important for a 2D system in which you only hydrogenated one side.

Regards

Thomas

P.S.: Please add your affiliation as also stated in the Posting Guidelines (http://www.quantum-espresso.org/forum#1.0)


On 09/17/18 09:49, Asad Mahmood wrote:
Hi,

I did relax calculation for monolayer Germanene (honeycomb) with about 20 angstrom vacuum between two layers. I did it for single sided hydrogenation. Final relaxed coordinates gave me different values of Ge-H bond length. One was 1.49 angstrom while other was 1.52 angstrom. Buckling length also decreased, while it should not decrease according to previous literature.
Is there any error?

Asad


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Dr. rer. nat. Thomas Brumme
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Leipzig University
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