279 citations · 409 across the 6 of their papers we have counts for
Showing cond-mat.mes-hallShow all
3 papers · 1 filter
cond-mat.mes-hall2014★ 19 cited
Preferential antiferromagnetic coupling of vacancies in graphene on SiO_2: Electron spin resonance and scanning tunneling spectroscopy
S. Just, S. Zimmermann, V. Kataev +3
Monolayer graphene grown by chemical vapor deposition and transferred to SiO_2 is used to introduce vacancies by Ar^+ ion bombardment at a kinetic energy of 50 eV. The density of d…
cond-mat.mes-hall1997★ 57 cited
Lateral superlattices as voltage-controlled traps for excitons
S. Zimmermann, A. O. Govorov, W. Hansen +3
We demonstrate the localisation of quantum well excitons in a periodic array of linear traps using photoluminescence experiments. The excitonic traps are induced by applying spatia…
cond-mat.mes-hall1997★ 279 cited
Acoustically driven storage of light in a quantum well
C. Rocke, S. Zimmermann, A. Wixforth +3
The strong piezoelectric fields accompanying a surface acoustic wave on a semiconductor quantum well structure are employed to dissociate optically generated excitons and efficient…