Browsing by Subject "Particles and fields physics"
Now showing items 1-20 of 30
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An adjustable linear Halbach array
(Elsevier, 2012)The linear Halbach array is a well known planar magnetic structure capable, in the idealized case, of generating a one-sided magnetic field. We show that such a field can be created from an array of uniformly magnetized ... -
Bottomonium above deconfinement in lattice nonrelativistic QCD
(American Physical Society, 2011)We study the temperature dependence of bottomonium for temperatures in the range 0.4Tc<T<2.1Tc, using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for Nf=2 light flavors on a ... -
Bottomonium at Non-zero Temperature from Lattice Non-relativistic QCD
(2012)The temperature dependence of bottomonium states at temperatures above and below $T_c$ is presented, using non-relativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for two light flavors ... -
Comparison of the defective pyrochlore and ilmenite polymorphs of AgSbO3 using GGA and hybrid DFT
(2011)Silver antimonate, AgSbO3, in both its defective pyrochlore and ilmenite structural polymorphs, has been suggested as a possible candidate mixed metal oxide for use in the photocatalytic splitting of water in visible light. ... -
Conformal anomaly of (2,0) tensor multiplet in six dimensions and AdS/CFT correspondence
(Institute of Physics, 2000)We compute the conformal anomaly in the free d = 6 superconformal (2,0) tensor multiplet theory on generic curved background. Up to a trivial covariant totalderivative term, it is given by the sum of the type A part ... -
Conjugated Quantum Dots Inhibit the Amyloid β (1-42) Fibrillation Process
(2011)Nanoparticles have enormous potential in diagnostic and therapeutic studies. We have demonstarted that the amyloid beta mixed with and conjugated to dihydrolipoic acid (DHLA)-capped CdSe/ZnS quantum dots (QDs) of size ... -
Defect-trapped electrons and ferromagnetic exchange in ZnO
(2011)A model for ferromagnetism observed at ambient temperature in films of oxides such as ZnO is proposed and evaluated. The ferromagnetic moment in the model arises from electrons trapped at negatively charged vacancies in ... -
Exceptionally strong magnetism in the 4d perovskites RTcO3 (R = Ca, Sr, Ba)
(2011)The evolution of the magnetic ordering temperature of the 4d3 perovskites RTcO3 (R=Ca, Sr, Ba) and its relation with its electronic and structural properties has been studied by means of hybrid density functional theory ... -
Expansion dynamics of laser produced plasma
(2011)We consider the applicability of the isentropic, adiabatic gas dynamical model of plume expansion for laser ablation in vacuum. We show that the model can be applied to ionized plumes and estimate the upper electron ... -
An experimental study of the dynamic properties of nanoparticle colloids with identical magnetization but different particle size
(2012)Measurements of the frequency dependent complex magnetic susceptibility, ?(?)=??(?)?i??(?), have been used to determine the dynamic properties of three specially prepared 400 G (0.04 T) magnetic fluids. The samples, denoted ... -
Four-point functions of lowest weight CPOs in N = 4 SYM(4) in supergravity approximation
(American Physical Society, 2000)We show that the recently found quartic action for the scalars from the massless graviton multiplet of type IIB supergravity compactified on an AdS53S5 background coincides with the relevant part of the action of the gauged ... -
High-resolution near-field measurements of microwave circuits
(2004)In this paper we report on measurements of electric field intensities of microwave field above surface of microwave circuits using miniaturized coaxial antennas. During the scanning process the antenna is driven at ... -
Influence of an Au capping layer on the magnetic properties of CoPt nanowires
(2011)Equiatomic CoPt nanowires with a gold cap layer have been fabricated by electrochemical template synthesis. Au improves the structural and magnetic properties of the L10 ordered CoPt, leading to coercivities of up to 1.43 ... -
Intra-well relaxation process in magnetic fluids subjected to strong polarising fields
(Elsevier, 2011)We report on the frequency and field dependent complex magnetic susceptibility measurements of a kerosene-based magnetic fluid with iron oxide nanoparticles, stabilized with oleic acid, in the frequency range 0.1?6 GHz and ... -
Konishi operator at intermediate coupling.
(2011)TBA equations for two-particle states from the sl(2) sector proposed by Arutyunov, Suzuki and the author are solved numerically for the Konishi operator descendent up to 't Hooft's coupling 2046. The data obtained ... -
Magnetic Structuring of Electrodeposits
(2011)Metal electrodeposition reflects the pattern of the magnetic field at the cathode surface created by a magnet array. For deposits from paramagnetic cations such as Co2+ or Cu2+, the effect is explained in terms of magnetic ... -
Measurement of electric-field intensities using scanning near-field microwave microscopy
(2003)In this paper, we propose methods for the measurement of electric intensities of a microwave field above the surface of microwave circuits. Using miniaturized coaxial antennas, we measure all spatial components of the ... -
New evidence for the influence of step morphology on the formation of Au atomic chains on vicinal Si(111) surfaces
(2010)Gold atomic chain structures that grow on singular and vicinal Si(111) surfaces have attracted considerable interest as model systems for exploring quasi-one-dimensional metallic behaviour. The structure of the prototypical ... -
Non-contact high resolution microwave scanning measurement technology
(IEEE, 2003)For non-contact inspection of microwave integrated and hybrid circuits a technical concept and realisation of a high resolution scanning technique for the detection of the electric field distribution has been developed. ... -
On the correspondence between gravity fields and CFT operators
(2000)It is shown that a nonlinear derivative-dependent transformation of gravity fields changes correlation functions in a boundary CFT, and, therefore, corresponds to a change of a basis of operators in the CFT. It is argued ...