Search Results - "Churkin, Valentin"
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Raman Spectra and Bulk Modulus of Nanodiamond in a Size Interval of 2–5 nm
Published in Nanoscale research letters (10-10-2017)“…Nanodiamond in a 2–5-nm size interval (which is typical for an appearance of quantum confinement effect) show Raman spectra composed of 3 bands at 1325, 1600,…”
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Pressure-Induced Transformation of Graphite and Diamond to Onions
Published in Crystals (Basel) (01-02-2018)“…In this study, we present a number of experiments on the transformation of graphite, diamond, and multiwalled carbon nanotubes under high pressure conditions…”
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Irreversible high pressure phase transformation of onion-like carbon due to shell confinement
Published in Diamond and related materials (01-08-2020)“…Onion-like carbon (OLC) was investigated at high pressure (up to 48 GPa) in a shear diamond anvil cell (SDAC) equipped with in-situ Raman spectroscopy control…”
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Surface Tamm States of 2-5 nm Nanodiamond via Raman Spectroscopy
Published in Nanomaterials (Basel, Switzerland) (10-02-2023)“…We observed resonance effects in the Raman scattering of nanodiamonds with an average size of 2-5 nm excited at a wavelength of 1064 nm (1.16 eV). The resonant…”
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The Effect of Shear Deformation on C-N Structure under Pressure up to 80 GPa
Published in Nanomaterials (Basel, Switzerland) (24-03-2021)“…We studythe effect of shear deformation on graphitic -C N under pressures of up to 80 GPa at room temperature. -C N samples are transformed from initial…”
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The effect of C60 fullerene polymerization processes on the mechanical properties of clusters forming ultrahard structures of 3D C60 polymers
Published in Diamond and related materials (01-04-2022)“…We observed the effect of high (up to 80 GPa) pressure, catalyst (CS2) and laser irradiation on the process of three-dimensional (3D) polymerization of…”
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Ultrasmall diamond nanoparticles with unusual incompressibility
Published in Diamond and related materials (01-06-2019)“…Based on experimental and theoretical studies, the 607 GPa bulk modulus of nanodiamond 2–5 nm was determined, which significantly exceeds the bulk modulus of…”
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Phase diagram of carbon
Published in Materials today : proceedings (2018)Get full text
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