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..
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 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..