Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Yu. Koschurinov"'
Autor:
Dagmar Gerthsen, A. E. Zhukov, E. Schomburg, S. Brandl, A. Yu. Egorov, Karl Friedrich Renk, B. V. Volovik, Zh. I. Alferov, R.N Kyutt, N. N. Ledentsov, Dimitri Litvinov, A. R. Kovsh, Yu. Koschurinov, P. S. Kop’ev, D.G. Pavel'ev, Andreas Rosenauer, V. M. Ustinov
Publikováno v:
Physics Letters A. 262:396-401
We report on the observation of miniband transport in a GaAs/AlAs superlattice with submonolayer AlAs barriers. An X-ray analysis indicated the superlattice periodicity, and a composition analysis by a high-resolution transmission electron microscopy
Autor:
A. E. Zhukov, P. S. Kop’ev, D.G. Pavel'ev, B. Ya. Melzer, V. M. Ustinov, Karl Friedrich Renk, Stefan Ivanov, A. A. Ignatov, Ekkehard Schomburg, T. Blomeier, K. Hofbeck, Jörg Grenzer, I. Lingott, S. Brandl, Yu. Koschurinov
Publikováno v:
Physical Review B. 58:4035-4038
We report on current oscillation at microwave frequencies in n-doped wide-miniband GaAs/AlAs superlattices. We found that, with increasing miniband width (16--72 meV), the oscillation frequency increased (from 2 to 53 GHz). An analysis of the current
Autor:
Jörg Grenzer, K. Hofbeck, Karl Friedrich Renk, V.M. Ustinov, S. Brandl, A.E. Zhukov, Stefan Ivanov, D.G. Pavel'ev, Ekkehard Schomburg, A. Kovsch, Yu. Koschurinov, Stephan Winnerl, A.A. Ignatov, P. S. Kop’ev, T. Blomeier
Publikováno v:
Solid-State Electronics. 42:1495-1498
We report on millimeter wave generation with a superlattice electronic device (SLED) operated at room temperature. The SLED, containing a wide-miniband GaAs/AlAs superlattice, had a quasi planar structure with two terminals lying in one plane. The de
Autor:
Ullrich Pietsch, Jörg Grenzer, Karl Friedrich Renk, B. Ja. Melzer, Yu. Koschurinov, Ute Zeimer, I. Lingott, Ekkehard Schomburg, Sergei Ivanov, P. S. Kop’ev, D.G. Pavel'ev, S. Schaposchnikov, A. A. Ignatov
Publikováno v:
Semiconductor Science and Technology. 13:733-738
We have studied, by x-ray scattering, structural parameters of a short-period GaAs/AlAs superlattice and related the parameters to electric transport properties. Our results, for a superlattice consisting of 100 periods of about ten GaAs and seven Al
Autor:
S. Brandl, K. Hofbeck, Karl Friedrich Renk, Sergei Ivanov, A. A. Ignatov, Jörg Grenzer, Yu. Koschurinov, Ekkehard Schomburg, T. Blomeier, V. M. Ustinov, P. S. Kop’ev, D.G. Pavel'ev, B. Melzer, I. Lingott
Publikováno v:
physica status solidi (b). 204:485-488
Autor:
H.-J. Regl, Stephan Winnerl, D.G. Pavel'ev, Yu. Koschurinov, Stefan Ivanov, A.D. Semenov, B. Melzer, Ekkehard Schomburg, P. S. Kop’ev, Karl Friedrich Renk, V. Ustinov, Jörg Grenzer, A. A. Ignatov, S. Schaposchnikov
Publikováno v:
Physical Review B. 56:10303-10307
We studied the interaction of high-frequency (HF) fields with the miniband electrons in semiconductor superlattices that show (at room temperature) negative differential conductance. We observed a field-induced reduction of current through the superl
Autor:
S. Schaposchnikov, Karl Friedrich Renk, V. Ustinov, P. S. Kop’ev, B. Melzer, A. A. Ignatov, Ekkehard Schomburg, D.P. Pavel'ev, Stefan Ivanov, Jörg Grenzer, Stephan Winnerl, H.-J. Regl, Yu. Koschurinov
Publikováno v:
Superlattices and Microstructures. 21:91-94
We demonstrate that a strong THz-field (3.9 THz) can lead to full supression of the dc current through a GaAs/AlAs superlattice that shows, at room temperature, negative differential conductance. The miniband width (Δ=50meV) was much larger than the
Autor:
Ekkehard Schomburg, B. Melzer, A. A. Ignatov, Karl Friedrich Renk, Yu. Koschurinov, Stefan Ivanov, K. Hofbeck, S. Schaposchnikov, D.G. Pavel'ev, P. S. Kop'ev, Jörg Grenzer
Publikováno v:
Physics Letters A. 218:349-353
We report the observation of a high-frequency self-sustained current oscillation in an n doped GaAs AlAs superlattice (at room temperature) that shows a negative differential conductance (Esaki-Tsu superlattice). The superlattice biased in the region
Autor:
D.G. Pavel'ev, P. S. Kop'ev, Karl Friedrich Renk, B. Melzer, Stefan Ivanov, Ekkehard Schomburg, S. Schaposchnikov, A. A. Ignatov, Jörg Grenzer, Yu. Koschurinov
Publikováno v:
Annalen der Physik. 507:184-190
We report on a microwave oscillator based on Bloch oscillations of electrons in a semiconductor superlattice. Our GaAs/AlAs superlattice, at room temperature, was coupled electromagnetically by an antenna to a rectangular cavity resonator, and was op
Autor:
Stefan Ivanov, A. A. Ignatov, Karl Friedrich Renk, B. Ja. Melzer, Jörg Grenzer, Yu. Koschurinov, S. Schaposchnikov, Ekkehard Schomburg, P. S. Kop'ev, D.G. Pavel'ev
Publikováno v:
Annalen der Physik. 507:265-271
We report the observation of frequency multiplication of microwave radiation in a GaAs/AlAs semiconductor superlattice at room temperature. We observed, for a fundamental frequency of 9 GHz, second and third harmonic generation. We associate the harm