Abstract

We study the effect of the magnetic-field-induced transition (MIT) from the magnetic sublevels $2{p}^{5}3s^{3}P_{2}$, $M=0,\ifmmode\pm\else\textpm\fi{}1$ on linear polarization of the entire $2{p}^{5}3s^{3}P_{2}\ensuremath{\rightarrow}2{p}^{6}^{1}S_{0}$ emission line following the electron-impact excitation of Ne-like ions based on the density-matrix method for describing polarized radiative emission in an external magnetic field. It is found that the MIT has a significant effect on the polarization properties of the line, which is more prominent at stronger magnetic-field strengths and higher impact electron energies. In addition, such an effect is particularly remarkable for light ions due to the fact that the MIT channel dominates in competition with the intrinsic magnetic-quadrupole channel. These findings highlight the potential of polarization measurements for diagnosing magnetic fields in astrophysical and laboratory plasmas.