# The kappa.out output file

## Brief Description

This file contains the running thermal conductivity (RTC) from the HNEMD method.

## File format

• column 1: $\kappa_x^{\text{in}}(t)$ (in units of W/mK)
• column 2: $\kappa_x^{\text{out}}(t)$ (in units of W/mK)
• column 3: $\kappa_y^{\text{in}}(t)$ (in units of W/mK)
• column 4: $\kappa_y^{\text{out}}(t)$ (in units of W/mK)
• column 5: $\kappa_z^{\text{tot}}(t)$ (in units of W/mK)
$$\kappa_x^{\text{tot}}(t) = \kappa_x^{\text{in}}(t) + \kappa_x^{\text{out}}(t);$$ $$\kappa_y^{\text{tot}}(t) = \kappa_y^{\text{in}}(t) + \kappa_y^{\text{out}}(t).$$