Carbon is an element with extremely versatile bonding properties and theoretical
calculations have suggested the possible existence of several hundred structural allotropes …

Lonsdaleite, also called hexagonal diamond, has been widely used as a marker of
asteroidal impacts. It is thought to play a central role during the graphite-to-diamond …

Recent indentation experiments indicate that wurtzite BN (w-BN) exhibits surprisingly high
hardness that rivals that of diamond. Here we unveil a novel two-stage shear deformation …

This study focused on the synthesis of Niobium/Hexagonal-Diamond/Amorphous-Carbon
(Nb/HD: aC) films on AISI-321 alloy. The substrate heating used as a vital deposition …

In a reactive direct current (DC) magnetron sputtering (MS) system, converting the cathode
(target) magnetic field configuration from a balanced magnetron (BM) to an unbalanced …

We announce a new class of carbon allotropes. The basis of this new classification resides
on the concept of combining hexagonal diamond (sp 3 bonded carbon− lonsdaleite) and …

Methods for the formation of hexagonal (2H) diamond from diamond polytypes under
various types of deformation of the structure have been studied using density functional …

Spherical crystals in minerals from prismatine-bearing rock from Waldheim, including
ultrahigh-pressure (UHP) minerals such as stishovite and coesite, were previously …

Hydrogenated silicon films ranging from pure amorphous to biphasic silicon ie,
nanocrystallites embedded amorphous silicon are prepared in an indigenously fabricated …

We synthesized hexagonal diamond directly from highly oriented pyrolytic graphite (HOPG)
using a femtosecond laser pulse without catalyst. A femtosecond laser pulse with …