Two-dimensional electron gases in high magnetic fields have proven to be a remarkably rich playground for the study of strongly-correlated quantum many-body systems. In two dimensions with a strong magnetic field, the cyclotron motion of the electrons completely quenches the particle kinetic energy into Landau levels which are macroscopically degenerate–the number of states in a Landau level is...

Using a number of techniques, investigations have been carried out for forty-eight different systems of sample combinations according to varying components and different concentrations of pure Liquid crystals(LCs) Cholesteryl Pelargonate (CP) as well as Composite systems formed with polymer of metha methyl acrylate (PMMA-a clear plastic) in different proportions with azobenzene dye (Orange). Th...

normal 0 false false false en-us x-none ar-sa dear editor i read with interest the study conducted by karrari and colleagues regarding “iranian crystal a misunderstanding of the crystal-meth” published in your journal. [ 1 ] in this study, the authors have explained that the pattern of substances of abuse is varied in different parts of the world , also in iran, and the main ingredient of stree...

We study ultracold Rydberg-dressed Bose gases subject to artificial gauge fields in the fractional quantum Hall (FQH) regime. The characteristics of the Rydberg interaction give rise to interesting many-body ground states different from standard FQH physics in the lowest Landau level. The nonlocal but rapidly decreasing interaction potential favors crystalline ground states for very dilute syst...

In this approach, the VO2 nanoparticles have been successfully fabricated via combusting the low-cost precursor solution consisted of NH4VO3, C2H6O2 and C2H5OH. By the XRD, TEM and XPS analysis, it can be found that the synthetic monoclinic VO2 is single crystal and no impurity is defined. After dispersing the VO2 nanoparticles into the polymer, the solar modulation of VO2-based composite film ...

We have developed a simple, cost-effective, and scalable approach to fabricate a piezoelectric nanogenerator (NG) with stretchable and flexible characteristics using BaTiO3 nanotubes, which were synthesized by the hydrothermal method. The NG was fabricated by making a composite of the nanotubes with polymer poly(dimethylsiloxane) (PDMS). The peak open-circuit voltage and short-circuit current o...