lambda_z

This keyword sets the weight \(\lambda_z\) of the loss term associated with the Born effective charge in the loss function. The syntax is:

lambda_z <weight>

Here, <weight> represents \(\lambda_z\), which must satisfy \(\lambda_z \geq 0\) and defaults to \(\lambda_z = 0.5\).

This keyword is only relevant for the qNEP models.