نتایج جستجو برای: improved magnetic charged system search
تعداد نتایج: 3118864 فیلتر نتایج به سال:
We have measured circularly polarized photoluminescence in monolayer MoSe2 under perpendicular magnetic fields up to 10 T. At low doping densities, the neutral and charged excitons shift linearly with field strength at a rate of ∓0.12 meV/T for emission arising, respectively, from the K and K' valleys. The opposite sign for emission from different valleys demonstrates lifting of the valley deg...
Eigenstates of two-dimensional charged electron–hole complexes in magnetic fields are considered. The operator formalism that allows one to partially separate the center-of-mass motion from internal degrees of freedom is presented. The scheme using magnetic translations is developed for calculating in strong magnetic fields the eigenspectra of negatively charged excitons X, a bound state of two...
In this paper, Ultra High Energy Cosmic Ray (UHECR) data observed by the HiRes fluorescence detector in stereo mode is analyzed to search for events in the sky with an arrival direction lying on a great circle. Such a structure is known as an arc structure. An arc structure is expected when the charged cosmic rays pass through the galactic magnetic field. The arcs searched for could represent a...
Based on the electromagnetism-like algorithm (EM), we propose a novel hybrid learning algorithms which is the improved EM algorithm with genetic algorithm technique (IEMGA) for recurrent fuzzy neural system design. IEMGA are composed of initialization, local search, total force calculation, movement, and evaluation. They are hybridization of EM and GA. EM algorithm is a population-based meta-he...
Introduction: Design of an effective dust mitigation system to support NASA’s new initiative to return to the surface of the Moon must be a high priority [1,2]. A number of strategies have been proposed based on brushing, magnetic susceptibility or magnetic attraction, variable EMF or other surfaces, and particle guns for charging or repelling dust [2]. Brushing was demonstrated to be effective...
The formation and various possible decay processes of neutral and charged excitonic complexes in electronic integral and fractional quantum Hall systems are discussed. The excitonic complexes are bound states of a small number of the relevant negatively and positively charged quasiparticles (e.g., conduction electrons and valence holes, reversed-spin electrons and spin holes, Laughlin quasielec...
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