Physikalische Chemie - Direktor: Prof. Dr. Martin Wolf
Department Seminar
Host: T. Kampfrath

Wednesday, October 24, 2018, 10:00 am
PC Seminar Room, G 2.06, Faradayweg 4
Prof. Dr. Vladimir Fridkin
Institute of Crystallography, Russian Academy of Sciences, Moscow,
& Center of Crystallography and Photonics, Drexel University, Philadelphia
The First Observation of Shift and Ballistic Photovoltaic Currents in the Noncentrosymmetric Crystals
The quantum phenomenon of shift photovoltaic current was predicted theoretically almost 40 years ago, but never was observed experimentally. The experimental photovoltaic current in noncentrosymmetric crystals consist of two parts, ballistic and shift, which never separated in experiment. In the present work we observed separately shift and ballistic current by means of illumination of noncentrosymmetric crystal by linearly and circularly polarized light in magnetic field.
• A. Burger, R. Agarwal, A. Aprelev, E. Schruba, A. Guttierez-Perez. V. Fridkin and J. Spanier, Science Advances, to be published.