2 citations · 2 across the 1 of their papers we have counts for
3 papers
cond-mat.mes-hall2011
Terahertz radiation driven chiral edge currents in graphene
J. Karch, C. Drexler, P. Olbrich +14
We observe photocurrents induced in single layer graphene samples by illumination of the graphene edges with circularly polarized terahertz radiation at normal incidence. The photo…
cond-mat.mes-hall2011
Classical ratchet effects in heterostructures with a lateral periodic potential
P. Olbrich, J. Karch, E. L. Ivchenko +5
We study terahertz radiation induced ratchet currents in low dimensional semiconductor structures with a superimposed one-dimensional lateral periodic potential. The periodic poten…
cond-mat.mes-hall2010★ 2 cited
Circular ac Hall Effect
J. Karch, P. Olbrich, M. Schmalzbauer +13
We report the observation of the circular ac Hall effect where the current is solely driven by the crossed ac electric and magnetic fields of circularly polarized radiation. Illumi…