Aluminum plasmonic junctions settle light emission picture

Atomic-scale aluminum plasmonic junctions can be tuned by electromigration and current across different dominant mechanisms of electroluminescence. Finding the plasmonic spectrum of a junction (at left) in the hot carrier emission regime allows precise prediction of the emitted spectrum in the multi-electron tunneling regime (at right). This work, led by Yunxuan Zhu, was reported in Nano Lett..

Surprising spin Seebeck response in VO2

Nonlocal spin Seebeck response is measured in VO2, revealing thermally driven transport of spin-carrying excitations in the insulating state of this correlated oxide. This is surprising, as the dimer singlet groundstate is expected to be non-magnetic. This work, led by Renjie Luo, was reported in Appl. Phys. Lett..

Noise reveals nanosecond dynamics in V2O3

Noise measurements shows fluctuations in the resistance of V2O3 at timescales down to fractions of a nanosecond during the metal-insulator transition. These observations are consistent with "p-noise", a model of percolation. This work, led by Liyang Chen, was reported in APL Materials..