Scientists have successfully synthesized lonsdaleite, a hexagonal diamond 40% harder than diamond, after 50 years of attempts ...

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russian Federation Photochemistry Center of RAS, FSRC “Crystallography and Photonics”, ...

Abstract: Demonstration of a 2.5-kV diamond diode is provided by electrical measurements using a circular gold Schottky contact, with an area >1 mm/sup 2/, on large area freestanding single-crystal ...