  In this work, a new integral equation (IE) based formulation is proposed
using vector and scalar potentials for electromagnetic scattering. The new
integral equations feature decoupled vector and scalar potentials that satisfy
Lorentz gauge. The decoupling of the two potentials allows low-frequency
stability. The formulation presented also results in Fredholm integral
equations of second kind. The spectral properties of second kind integral
operators leads to a well-conditioned system.
