Related by context. Frequent words. (Click for all words.) 60 electrons 57 ions 52 photons 52 atoms 52 electron 50 Electrons 49 hydrogen atoms 49 oxygen atoms 49 nanocrystals 48 particles 48 photon 47 neutrons 46 magnetic fields 46 protons 46 nuclei 45 atomic particles 45 kinetic energy 45 positrons 44 nanotubes 44 electron spin 44 nanowires 44 ionized 43 fluoresce 43 quantum dots 43 laser pulse 43 subatomic particles 43 deuterium 42 crystals 42 metal ions 42 particle 41 phosphors 41 electrostatic 41 magnetically 41 magnetization 41 molecules 41 germanium 41 cosmic rays 41 laser pulses 41 nanotube 41 vortices 40 filaments 40 piezoelectric 40 superconductors 40 filament 40 radioactive decay 40 nanoparticles 40 electromagnetic waves 40 quantum dot 40 superconductor 40 comet dust 40 exhaust gases 40 carbon nanotubes 40 organic molecules 40 neutron stars 39 graphene 39 ruthenium 39 electrode 39 organelles 39 interstellar medium 39 magnetosphere 39 nanowire 39 metamaterials 39 cathode 39 resonators 39 Particles 39 electrically charged 39 proton 39 laser beams 39 neutrinos 39 electrodes 38 electrochemical 38 gamma rays 38 superconductivity 38 waveguide 38 nano particles 38 volts 38 superconducting 38 nanometer scale 38 electrical currents 38 nanostructures 38 antimatter 38 atom 38 water vapor 38 CNTs 37 waveguides 37 quantum mechanical 37 optical fibers 37 nanofibers 37 electron beam 37 pulsars 37 fullerenes 37 silicate 37 aluminum oxide 37 proton beams 37 trillion electron volts 37 excitation 37 droplets 37 quarks 37 quasar 36 magnetism 36 carbon atoms