But very few of them have been discovered. Theoreticians had predicted that isotopically pure cubic boron nitride (c-BN), should have extremely high thermal conductivity - second only to crystals made ...

But very few of them have been discovered. Theoreticians had predicted that isotopically pure cubic boron nitride (c-BN), should have extremely high thermal conductivity - second only to crystals made ...

The material, called hexagonal boron nitride (hBN), is used in semiconductor ... They found that it creates single-crystal films of hBN that are free of pinholes, exhibit low defect densities ...