= Clarence Zener
{c}
{tag=Physicist}
{wiki}
= Clarence Melvin Zener
{c}
{synonym}
<Clarence Zener> introduced <double exchange> to connect electrical conduction with <ferromagnetism> in mixed-valence <manganese> compounds. In this mechanism, carrier motion and the alignment of local <spins> influence one another: the magnetic arrangement changes how effectively an electron can move, and the resulting change in electronic <energy> can favor aligned <spins>. His 1951 treatment of manganese compounds with a perovskite crystal structure sought to explain why conduction and ferromagnetic ordering occur together. It links magnetic order to carrier motion rather than treating conductivity and <magnetism> as unrelated properties.<Interaction between the d-Shells in the Transition Metals. II. Ferromagnetic Compounds of Manganese with Perovskite Structure by Clarence Zener>[Physical Review 82, 403 (1951), abstract and double-exchange mechanism]{ref}
His work on <double exchange> connected carrier motion with <ferromagnetism> in mixed-valence materials. Carnegie Mellon preserves his research papers: https://findingaids.library.cmu.edu/repositories/2/resources/93.
\Image[https://library.cmu.edu/sites/default/files/inline-images/Zener%201.p_s__0.jpg]
{title=Clarence Melvin Zener, from Carnegie Mellon University Archives}
{height=240}
Back to article page
