HELP:The use of the init_surf command in dpgen

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Summary

The initial structure I generated using the init_surf command of dpgen has no vacuum layer and the structure is very loose. The structure is a five-layer structure of BiVO4. How should I set the parameters in param.json

DP-GEN Version

0.13.1

Platform, Python Version, etc

No response

Details

param.jsonThis is my param.json file.。

This is the initial structure

This is the structure generated by the init_surf command