73 citations · 303 across the 15 of their papers we have counts for
15 papers
Size-dependent thermal stability and optical properties of ultra-small nanodiamonds synthesized under high pressure
E. A. Ekimov, A. A. Shiryaev, Yu. Grigoriev +4
Diamond properties down to the quantum-size region are still poorly understood. High-pressure high-temperature (HPHT) synthesis from chloroadamantane molecules allows precise contr…
Behavior of implanted Xe, Kr and Ar in nanodiamond and thin graphene stacks: experiment and modeling
Andrey A. Shiryaev, Alexander L. Trigub, Ekaterina N. Voronina +2
Implantation and subsequent behaviour of heavy noble gases (Ar, Kr, Xe) in few-layer graphene sheets and in nanodiamonds is studied both using computational methods and experimenta…
Fano-type effect in hydrogen-terminated pure nanodiamond
O. S. Kudryavtsev, R. H. Bagramov, A. M. Satanin +7
Two novel properties, unique for semiconductors: a negative electron affinity [1-2], and a high p-type surface electrical conductivity [3-4], were discovered in diamond at the end…
Shift of CO2-I absorption bands in diamond: a pressure or compositional effect? A FTIR mapping study
Evgenii P. Barannik, Andrey A. Shiryaev, Thomas Hainschwang
Infra-red maps and profiles with high spatial resolution were obtained for two single crystal diamonds with pronounced CO2 IR absorption peaks. Detailed examination allows unambigu…
Towards the surface hydroxyl species in CeO nanoparticles
Tatiana V Plakhova, Anna Yu Romanchuk, Sergei M Butorin +13
Understanding the complex chemistry of functional nanomaterials is of fundamental importance. Controlled synthesis and characterization at the atomic level is essential to gain dee…
Inelastic neutron scattering: A novel approach towards determination of equilibrium isotopic fractionation factors. Size effects on heat capacity and beta-factor of diamond
Andrey A. Shiryaev, Veniamin B. Polyakov, Stephane Rols +2
A new experimental method of determination of equilibrium isotopic properties of substances based on Inelastic Neutron Scattering (INS) is proposed. We present mathematical formali…
Molecular dynamics approach for predicting release temperatures of noble gases in pre-solar nanodiamonds
Alireza Aghajamali, Andrey A. Shiryaev, Nigel A. Marks
Pre-solar meteoritic nanodiamond grains carry an array of isotopically distinct noble gas components and provide information on the history of nucleosynthesis, galactic mixing and…
Modification of Nanodiamonds by Xenon Implantation: A Molecular Dynamics Study
Jason L. Fogg, Alireza Aghajamali, Jonathan A. Hinks +3
Xenon implantation into nanodiamonds is studied using molecular dynamics. The nanodiamonds range in size from 2-10 nm and the primary knock-on (PKA) energy extends up to 40 keV. Fo…
On possibility of detection of emission from nanodiamonds in vicinity of stellar objects: laboratory spectroscopy and observational data
Andrey Shiryaev, Laurence Sabin, Gennady Valyavin +1
Based on extensive laboratory characterization of presolar nanodiamonds extracted from mete-orites, we have proposed a novel approach to detect nanodiamonds at astrophysical object…
Ion implantation in nanodiamonds: size effect and energy dependence
Andrey A. Shiryaev, Jonathan A. Hinks, Nigel A. Marks +9
Nanoparticles are ubiquitous in nature and are increasingly important for technology. They are subject to bombardment by ionizing radiation in a diverse range of environments. In p…
Anomalous enhancement of nanodiamond luminescence upon heating
A. A. Khomich, O. S. Kudryavtsev, T. A. Dolenko +4
Characteristic photoluminescence (PL) of nanodiamonds (ND) of very different origin (detonation, HPHT, extracted from meteorite) was studied in situ at high temperatures in the ran…
Infra-red reflectance and emissivity spectra of nanodiamonds
A. Maturilli, A. A. Shiryaev, I. I. Kulakova +1
Reflectance and emissivity spectra of nanodiamonds powder were measured in a dedicated setup at temperatures up to 873 K. The spectra are characterised by presence of sharp bands d…
Extended defects in natural diamonds: Atomic Force Microscopy investigation
Radmir V. Gainutdinov, Andrey A. Shiryaev, Yana Fedortchouk
Surfaces of natural diamonds etched in high-pressure experiments in H2O, CO2 and H2O-NaCl fluids were investigated using Atomic Force Microscopy. Partial dissolution of the crystal…
Depth concentrations of deuterium ions implanted into some pure metals and alloys
A. Yu. Didyk, R. Wiśniewski, K. Kitowski +4
Pure metals (Cu, Ti, Zr, V, Pd) and diluted Pd-alloys (Pd-Ag, Pd-Pt, Pd-Ru, Pd-Rh) were implanted by 25 keV deuterium ions at fluences in the range (1.2÷2.3)x1022 D+/m2. The post-t…
Spectroscopic study of impurities and associated defects in nanodiamonds from Efremovka (CV3) and Orgueil (CI) meteorites
A. A. Shiryaev, A. V. Fisenko, I. I. Vlasov +3
The results of spectroscopic and structural studies of phase composition and of defects in nanodiamonds from Efremovka (CV3) and Orgueil (CI) chondrites indicate that nitrogen atom…