Journal Of Applied Physics 81, 2555 - 2559 (1997)

Evidence of a Low Compressibility Carbon Nitride with Defect-Zincblende Structure

J. Martín-Gil, F.J. Martín-Gil, M. Sarikaya, M. Qian, M.J. Yacamán, A. Rubio

A carbon-nitride compound with defect zincblende structure (P4 3m) has been discovered in samples prepared by a chemical precursor route. Crystallographical (high-resolutionelectron microscopy and electron nanodiffraction) and electron energy loss measurements has been performed to identify the material as cubic zincblende with C₃N₄ composition. Nanoindentation indicates a high elastic recovery andhardness. The results agree with detailed ab initio calculations on metastable structures and compressibility. Our synthesis method is projected to be a process that could produce large quantities of material by controlling the chemical strategy. The new compound has potential applications for high hardness, elasticity and thermal conductivity materials and thin films.

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http://dx.doi.org/10.1063/1.364301

Related Research Areas

• Extended systems: solids, surfaces, liquids. Applications (e.g photovoltaics)