The structure of monoatomic steps on (001)-vicinal surface of Kossel crystal is investigated theo... more The structure of monoatomic steps on (001)-vicinal surface of Kossel crystal is investigated theoretically. We consider all step directions except for relatively small vicinities of <10>-directions. The structure of such steps at sufficiently low temperature is shown to be controlled only by interaction between second nearest neighbors. If this interaction is repulsive, steps have saw-like shape, while attractive interaction leads to straightening of steps. More general case of nonpairwise interactions is also considered.
We report the observation of THz photovoltage in double quantum wells in tilted magnetic field. T... more We report the observation of THz photovoltage in double quantum wells in tilted magnetic field. The signal appears at the normal component of the magnetic field corresponding to the electron cyclotron resonance conditions and directly related to electron CR absorption. The phenomenon is accounted for by a photovoltaic effect in both electron-electron and electron-hole bilayer systems.
High Speed Phenomena in Photonic Materials and Optical Bistability, 1990
The new type of seif-electrooptic--effect--device is presented. Optical nonlinearity and bistabil... more The new type of seif-electrooptic--effect--device is presented. Optical nonlinearity and bistability due to the internal electric field redistribution in nonuniform i-layer of double GaAs/A1GaAs PIN heterostructure are achieved.
The structure of monoatomic steps on (001)-vicinal surface of Kossel crystal is investigated theo... more The structure of monoatomic steps on (001)-vicinal surface of Kossel crystal is investigated theoretically. We consider all step directions except for relatively small vicinities of <10>-directions. The structure of such steps at sufficiently low temperature is shown to be controlled only by interaction between second nearest neighbors. If this interaction is repulsive, steps have saw-like shape, while attractive interaction leads to straightening of steps. More general case of nonpairwise interactions is also considered.
We report the observation of THz photovoltage in double quantum wells in tilted magnetic field. T... more We report the observation of THz photovoltage in double quantum wells in tilted magnetic field. The signal appears at the normal component of the magnetic field corresponding to the electron cyclotron resonance conditions and directly related to electron CR absorption. The phenomenon is accounted for by a photovoltaic effect in both electron-electron and electron-hole bilayer systems.
High Speed Phenomena in Photonic Materials and Optical Bistability, 1990
The new type of seif-electrooptic--effect--device is presented. Optical nonlinearity and bistabil... more The new type of seif-electrooptic--effect--device is presented. Optical nonlinearity and bistability due to the internal electric field redistribution in nonuniform i-layer of double GaAs/A1GaAs PIN heterostructure are achieved.
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Papers by Robert Suris