They were able to detect new electronic states of matter in these insulators. (sciencedaily.com)
They reasoned that those electrons that were able to tunnel through to the second layer of gallium arsenide did so because their momenta and energies coincided with those of electronic states in that layer. (sciencedaily.com)
Such processes involve chemical reactions, light absorption, formation of excited electronic states, transfer of excitation energy, and transfer of electrons and protons in chemical processes. (quantbiolab.com)