Kurchatov Institute

About: Kurchatov Institute is a facility organization based out in Moscow, Russia. It is known for research contribution in the topics: Plasma & Neutron. The organization has 12493 authors who have published 18321 publications receiving 281837 citations. The organization is also known as: Laboratory No. 2 of the USSR Academy of Sciences & Kurchatov Institute.

J/ψ polarization in pp collisions at √s=7 TeV.

Abstract: The ALICE Collaboration has studied J/psi production in pp collisions at root s = 7 TeV at the LHC through its muon pair decay. The polar and azimuthal angle distributions of the decay muons were measured, and results on the J/psi polarization parameters lambda(theta) and lambda(phi) were obtained. The study was performed in the kinematic region 2: 5 < y < 4, 2 < p(t) < 8 GeV/c, in the helicity and Collins-Soper reference frames. In both frames, the polarization parameters are compatible with zero, within uncertainties.

Transport Through a Network of Topological Channels in Twisted Bilayer Graphene

Abstract: We explore a network of electronic quantum valley Hall states in the moire crystal of minimally twisted bilayer graphene. In our transport measurements, we observe Fabry-Perot and Aharanov-Bohm oscillations that are robust in magnetic fields ranging from 0 to 8 T, which is in strong contrast to more conventional two-dimensional systems where trajectories in the bulk are bent by the Lorentz force. This persistence in magnetic field and the linear spacing in density indicate that charge carriers in the bulk flow in topologically protected, one-dimensional channels. With this work, we demonstrate coherent electronic transport in a lattice of topologically protected states.

Size-Controlled Synthesis of Vaterite Calcium Carbonate by the Mixing Method: Aiming for Nanosized Particles

Abstract: Extensive use of vaterite for encapsulation and drug delivery requires the means for controlling the size of crystals synthesized via simple mixing of calcium chloride and sodium carbonate. Importantly, to take full advantage of vaterite for nanomedicine, the particle size has to be confined to the nanoscale. The impacts of temperature, salt concentration, and polyol additives are systematically researched with the purpose to achieve nanosized crystals of vaterite in a controlled way. The influence of polyols (ethylene glycol, glycerol, and erythritol) is studied here with respect to their concentration, viscosity of water/polyol mixtures, and number of hydroxyl groups per polyol molecule. Among the investigated polyols, ethylene glycol and glycerol are found to promote the formation of vaterite enabling spherical framboid particles in the size range of 2 μm to 350 nm. The conditions suitable for synthesis of submicron CaCO3 are chosen to obtain nanosized sacrificial templates (500 ± 100 nm in diameter) f...