Electric field gradients in MgB${}_2$ synthesized at high pressure: ${}^{1}11$Cd TDPAC study and ab initio calculation

A. V. Tsvyashchenko, L. N. Fomicheva, M. V. Magnitskaya +14

We report the high-pressure synthesis of novel superconductor MgB${}_2$ and some related compounds. The superconducting transition temperature of our samples of MgB${}_2$ is equal to 3…