816 citations · 1.7k across the 19 of their papers we have counts for
19 papers
The Role of Spin-Flip Collisions in a Dark Exciton Condensate
Subhradeep Misra, Michael Stern, Vladimir Umansky +1
We show that a Bose-Einstein condensate consisting of dark excitons forms in GaAs coupled quantum wells at low temperatures. We find that the condensate extends over hundreds of mi…
Experimental Study of the Exciton Gas Liquid Transition in Coupled Quantum Wells
Subhradeep Misra, Michael Stern, Arjun Joshua +2
We study the exciton gas-liquid transition in GaAs/AlGaAs coupled quantum wells. Below a critical temperature, Tc=4.8K, and above a threshold laser power density the system undergo…
Fano Resonance in an Electrically Driven Plasmonic Device
Yuval Vardi, Eyal Cohen-Hoshen, Guy Shalem +1
We present an electrically driven plasmonic device consisting of a gold nanoparticle trapped in a gap between two electrodes. The tunneling current in the device generates plasmons…
Random Telegraph Signal in a Metallic Double-Dot System
Yuval Vardi, Avraham Guttman, Israel Bar-Joseph
In this work, we investigate the dynamics of a single electron surface trap, embedded in a self-assembly metallic double-dot system. The charging and discharging of the trap by a s…
Exciton Liquid in Coupled Quantum Wells
Michael Stern, Vladimir Umansky, Israel Bar-Joseph
Excitons in semiconductors may form correlated phases at low temperatures. We report the observation of an exciton liquid in GaAs/AlGaAs coupled quantum wells. Above a critical den…
NMR probing of the spin polarization of the nu=5/2 quantum Hall state
M. Stern, B. A. Piot, Y. Vardi +4
Resistively detected nuclear magnetic resonance is used to measure the Knight shift of the As nuclei and determine the electron spin polarization of the fractional quantum Hall sta…