Related by context. Frequent words. (Click for all words.) 66 high temperature superconductors 66 phonons 64 excitons 63 superconductors 63 high temperature superconductivity 62 superconductor 61 superconductivity 61 superfluid 61 bandgap 61 superconducting 61 ferromagnetic 60 photonic crystal 59 conductance 58 crystal lattice 58 fermions 58 isotropic 57 thermoelectric materials 57 silicates 57 semiconducting 57 nanocrystals 57 dimer 57 plasmons 57 electron beams 57 anion 57 theoretical calculations 56 X ray emission 56 gravitational lensing 56 chirality 56 magnetic flux 56 graphene 56 alpha particles 56 SWNTs 56 oxygen atom 56 conductivity 56 GPa 56 quantum dot 56 Superconductivity 55 PZT 55 atoms 55 dimers 55 magnetization 55 superfluidity 55 fullerene 55 magnetic fields 55 adsorbed 55 anisotropy 55 nanotube 55 microstructures 55 dielectric constant 55 ferroelectric 54 electrons 54 scanning tunneling microscope 54 subatomic particle 54 electron 54 muons 54 reactants 54 quantum dots 54 Bose Einstein condensate 54 macroscopic 54 nanocrystal 54 Metamaterials 54 metal ions 54 hydroxyl 54 interfacial 54 crystalline structure 54 graphene sheets 54 biological molecules 54 silicon oxide 54 anisotropic 54 nanowire 53 electron spin 53 nanostructures 53 photonic crystals 53 morphologies 53 quantum mechanical 53 nanotubes 53 olivine 53 electrical conductivity 53 nanostructure 53 polycrystalline 53 electrically conductive 53 waveguides 53 plasmonic 53 excitation 53 positron 53 nuclei 53 X ray diffraction 53 oxygen atoms 53 titanium oxide 52 fluoresce 52 quark gluon plasma 52 spacetime 52 absorbance 52 GeV 52 nitrogen fixation 52 refractive index 52 JILA 52 Supplementary Fig 52 organic molecules 52 iron oxides 52 FRET