Complex sentence: Having correct spin direction will allow for easier conduction of electrons hence in, for example, a super conductor; just above the critical temperature (Tc) needed to display super-conduction, electrons are not fully aligned and hence have a high resistance to electrical current.
Split into simpler sentences: Having correct spin direction will allow for easier conduction of electrons. For example, a super conductor; just above the critical temperature (Tc) needed to display super-conduction, electrons are not fully aligned and therefore have a high resistance to electrical current.