Tunable and low-loss correlated plasmons in Mott-like insulating oxides
Nature Communications, Published online: 12 May 2017; doi:10.1038/ncomms15271
Conventional plasmons in metals often suffer from high plasmonic loss in the optical range. Here, the authors report a distinct form of tunable correlated plasmons in Mott-like insulating Sr1−x NbO3+δ films, with multiple plasmon frequencies and low loss in the visible-ultraviolet range.