  A magnetic field was recently shown to enhance field-parallel heat conduction
in a strongly correlated plasma whereas cross-field conduction is reduced. Here
we show that in such plasmas, the magnetic field has the additional effect of
inhibiting the isotropization process between field-parallel and cross-field
temperature components thus leading to the emergence of strong and long-lived
temperature anisotropies when the plasma is locally perturbed. An extended heat
equation is shown to describe this process accurately.
