V
Vitalii Sichkovskyi
Researcher at University of Kassel
Publications - 56
Citations - 406
Vitalii Sichkovskyi is an academic researcher from University of Kassel. The author has contributed to research in topics: Quantum dot & Quantum dot laser. The author has an hindex of 11, co-authored 50 publications receiving 325 citations. Previous affiliations of Vitalii Sichkovskyi include National Academy of Sciences of Ukraine.
Papers
More filters
Journal ArticleDOI
Optimization of size uniformity and dot density of InxGa1−xAs/GaAs quantum dots for laser applications in 1 µm wavelength range
TL;DR: In this paper, the growth and characterization of self-assembled InxGa1−xAs quantum dots grown on GaAs (1 0 0 0 ) substrate designed to emit at 10 30
Journal ArticleDOI
Ferromagnetic nanocomposites as spintronic materials with controlled magnetic structure
G. V. Lashkarev,M. V. Radchenko,M. E. Bugaiova,A. I. Dmitriev,V. I. Lazorenko,Vitalii Sichkovskyi,W. Knoff,Tomasz Story,Y. A. Stelmakh,L. A. Krushynskaya +9 more
TL;DR: In this article, the physical properties of dilute magnetic semiconductors and nanocomposites are considered in a wide range of temperatures from 5 to 300 K. The properties of spin-dependent tunneling conductance of a nanocomposition are investigated.
Journal ArticleDOI
Ferromagnetism of Narrow-Gap Ge1-x-ySnxMnyTe and Layered In1-xMnxSe Semiconductors
G. V. Lashkarev,Vitalii Sichkovskyi,M. V. Radchenko,A. I. Dmitriev,V.E. Slynko,E.I. Slynko,Zakhar D. Kovalyuk,P. E. Butorin,P. E. Butorin,W. Knoff,Tomasz Story,R. Szymczak,Rafal Jakiela,Pavlo Aleshkevych,Witold Dobrowolski +14 more
TL;DR: In this article, the magnetic properties of InSe-Mn-2D-ferromagnetic single crystals were investigated in the temperature range 4.2-300 K revealing a ferromagnetic ordering at TC ≈ 50 K.
Proceedings ArticleDOI
High-bandwidth temperature-stable 1.55-μm quantum dot lasers
S. Banyoudeh,Ori Eyal,A. Abdollahinia,Florian Schnabel,Vitalii Sichkovskyi,Johann Peter Reithmaier,Gadi Eisenstein +6 more
TL;DR: In this article, an overview is given about the recent improvement in 1.55 μm QD lasers for direct modulation, which reduces the inhomogeneous size distribution, and record values in small signal modulation bandwidth of more than 15 GHz and in digital modulation of up to 35 GBit/s.
Journal ArticleDOI
Effect of elastic stresses on the thermoelectric properties of Pb 1−x Ge x Te epitaxial layers
V. N. Vodop’yanov,A. P. Bakhtinov,E.I. Slynko,M. V. Radchenko,Vitalii Sichkovskyi,G. V. Lashkarev,Witold Dobrowolski,R. Yakiela +7 more
TL;DR: In this paper, the temperature dependence of the thermopower of Pb1−x epitaxial films grown on BaF2(111) substrates was measured, and the temperature of the ferroelectric phase transition was found to disagree with that obtained for bulk single crystals of the same composition.