fix_modify AtC extrinsic exchange command — LAMMPS documentation

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# fix_modify AtC extrinsic exchange command

## Syntax

    fix_modify <AtC fixID> extrinsic exchange <on|off>

- AtC fixID = ID of fix atc instance

- extrinsic exchange = name of the AtC sub-command

- on or off = set state of energy exchange

## Examples

    fix_modify AtC extrinsic exchange on

## Description

Switches energy exchange between the MD system and the electron system on or off

## Restrictions

For use only with the two_temperature type of the AtC fix (see fix atc command)

## Related AtC commands

- fix_modify AtC command overview

## Default

on