  We present in this part II the effects of the magnetic field intensity on the
properties of the plasma discharge and the underlying phenomena for different
propellant's ion mass. The plasma setup represents a perpendicular
configuration of the electric and magnetic fields, with the electric field
along the axial direction and the magnetic field along the radial direction.
The magnetic field intensity is changed from 5 to 30 mT, with 5 mT increments.
The propellant gases are xenon, krypton, and argon. The simulations are carried
out using a particle-in-cell (PIC) code based on the computationally efficient
reduced-order PIC scheme. Similar to the observations in part I, we show that,
across all propellants, the variation in the intensity of the magnetic field
yields two distinct regimes of the plasma, where either the Modified Two Stream
Instability (MTSI) or the Electron Cyclotron Drift Instability (ECDI) are
present. Nonetheless, a third plasma regime is also observed for cases with
moderate values of the magnetic field intensity (15 and 20 mT), in which the
ECDI and the MTSI co-exist with comparable amplitudes. This described change in
the plasma regime becomes clearly reflected in the radial distribution of the
axial electron current density and the electron temperature anisotropy.
Contrary to the effect of the electric field magnitude in part I, we observed
here that the MTSI is absent at the relatively low magnetic field intensities
(5 and 10 mT). At the relatively high magnitudes of the magnetic field (25 and
30 mT), the MTSI becomes strongly present, a long-wavelength wave mode
develops, and the ECDI does not excite. An exception to this latter observation
was noticed for xenon, for which the ECDI's presence persists up to the
magnetic field peak value of 25 mT.
