= M. Jullière
{c}
<M. Jullière> reported an early experiment on spin-dependent <quantum tunnelling> between ferromagnetic films in 1975. The study compared the <electrical conductance> of iron–germanium–cobalt junctions when the film <magnetizations> were parallel or antiparallel.<Tunneling between ferromagnetic films by M. Jullière>[Physics Letters A 54, pp. 225–226, abstract and junction comparison]{ref}
The associated <Jullière model> relates the change in conductance to spin-dependent <density of states> in the two electrodes. Changing their relative magnetic orientation changes the available tunnelling channels, providing a physical basis for <tunnel magnetoresistance>. The experiment made magnetic configuration an electrical readout variable, rather than treating the barrier alone as the determinant of tunnelling. The author name here retains the primary-paper byline.
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