Optimizing Pseudopotentials in SIESTA for Accurate Simulations

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sadz007
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Hello , is there anyone to help me.
I'm just a beginer. I was trying to find out the pseudopotential for different elements.
Do you have any suggetions ? I am using seista for this.
I'll be greatful if you can help me.

My problems are.

1. How to find out the best pseudopotential ?
I'm varing the cutoff radius and the electronic configuration, is there any parameters which is to be changed to get a more accurate pseudopotential ?
 
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