Related by context. Frequent words. (Click for all words.) 63 phonons 60 superconducting 60 SWNTs 60 bandgap 59 superconductors 58 high temperature superconductors 58 ferromagnetic 58 fermions 58 thermocouples 58 excitons 58 thermal conductivity 57 dielectrics 57 electron beams 57 polycrystalline 57 dielectric constant 56 photonic crystal 56 atoms 56 superconductivity 56 waveguides 56 superconductor 56 superfluid 55 electrons 55 conductance 55 electrically conductive 55 dielectric 55 magnetic flux 55 magnetization 55 quantum mechanical 55 isotropic 54 windings 54 terahertz radiation 54 semiconducting 54 crystalline structure 54 insulators 54 ferroelectric 54 crystal lattice 54 radiative 54 graphene sheets 54 macroscopic 54 reactants 54 nuclei 54 fluxes 54 alpha particles 53 resonators 53 PZT 53 ductility 53 conductivity 53 picosecond 53 microstructures 53 GPa 53 magnetic fields 53 ductile 53 CNTs 53 superposition 53 refractive index 52 plasmons 52 annealed 52 photons 52 Metamaterials 52 interfacial 52 dimer 52 atomic nuclei 52 electrical conductivity 52 high temperature superconductivity 52 SiO2 52 sinusoidal 52 silicon oxide 52 ferrite 52 ZnO 52 copper interconnects 52 Bose Einstein condensate 52 block copolymers 52 rubidium 52 qubit 52 hysteresis 52 photonic crystals 51 silicon transistors 51 superfluidity 51 rhodopsin 51 nanotube 51 excitation 51 electron mobility 51 temperature coefficient 51 neutrons 51 cerium 51 Supplementary Fig 51 oscillation 51 thermally 51 chirality 51 nanotubes 51 voltages 51 hydrogen ions 51 gallium arsenide 51 nanocrystals 51 anisotropy 50 anisotropic 50 nanometer sized 50 electron spin 50 microwave frequencies 50 picoseconds 50 silicates