how to create vaccum

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1

Respected sir,

I HAVE A SYSTEM CONFINED BETWEEN TWO SHEETS,I WANT TO CREATE VACUUM SPACE IN Z-DIRECTION ,I DONT WANT TO CHANGE MY INITIAL SET UP BUT WANT TO CREATE SPACE USING THE RESTART FILE WHICH I HAVE.

I HAVE USED THE OPTION- FIX DEFORM BUT BY DOING THAT MOLECULES ARE GOING IN VAPOR SPACE,AND BONDS ARE BREAKING
2ND I HAVE USE CHANGE_BOX COMMAND BUT IT WAS SHOWING ERROR THAT CANNOT CHANGE BOX USING RESTART FILE.

IS THERE ANY OPTION OR COMMAND AVAILABLE IN LAMMPS SO THAT I CAN CREATE VACCUM SPACE IN MY EXISTING SYSTEM.(USING THE EXITING RESTART FILE_)

ANY HELP IS HIGHLY APPRECIATED

I AM ATTACHING THE PICTURE OF MY EXITING SYSTEM,I WANT TO CREATE SPACE IN ZDIRECTION

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2

I would suggest that you first address your keyboard malfunction, so that your message does not come across as if you are shouting at people here.

Thanks for understanding,
Axel

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