other

Hexagonal diamond

Carbon polytype in which the atoms sit in a hexagonal, wurtzite-type lattice instead of diamond's cubic one. Identified in meteorite material and made in the laboratory, it is studied for its hardness, thermal conductivity and wide band gap.

Known aliases

h-diamond
Lonsdaleite

Relationships

No evidence-backed relationships are recorded.

Current clusters

science1 publisher

Calculations put hexagonal diamond's electron mobility at 28,473 cm2V-1s-1 along the c axis

An ab initio study in npj Computational Materials traces the figure to symmetry-enforced phonon selection rules. The effective masses it computes are comparable to cubic diamond's, so mass cannot account for the gap.

Publishers:nature.com

Reality

Evidence52
Adoption: Insufficient
Hype gap+12
Incentives38
Confidence48