Nonlinear kinetic transport of electrons and magnetic field in laser-produced plasmas

The convection of a magnetic field in the overdense plasma by the Nernst effect is studied with a kinetic description of electron transport. The magnetic field is found to be always strongly coupled to the heat flow, even when the latter is nonlinear (but classical), which places a constraint on flux-limitation schemes in magnetohydrodynamic calculations. The cross-field, Righi-Leduc heat flux is found to require a lower flux limiter than does the inward heat flow into the target