Ion exchange synthesizes layered polymorphs of MgZrN${}_2$ and MgHfN${}_2$, two metastable semiconductors

Christopher L. Rom, Matthew Jankousky, Maxwell Q. Phan +5

The synthesis of ternary nitrides is uniquely difficult, in large part because elemental N${}_2$ is relatively inert. However, lithium reacts readily with other metals and N${}_2$, mak…