13 papers
Colossal magneto-excitonic effects in 2D van der Waals magnetic semiconductor CrSBr
R. Komar, M. Goryca, A. Åopion +12
2D magnetic semiconductors, which intrinsically couple a rich landscape of magnetic orders with tightly bound electron-hole pairs (excitons), present an exciting platform to invest…
Moire based strain analysis in wurtzite GaAs -- rock-salt (Pb,Sn)Te core-shell nanowires grown by molecular beam epitaxy
Maciej Wojcik, Sania Dad, Piotr Dziawa +3
We investigate core/shell GaAs/(Pb,Sn)Te nanowire nanoheterostructures with wurtzite (wz) GaAs cores and (Pb,Sn)Te topological crystalline insulator shells. The nanostructures have…
Strain-driven spin mixing and dark-exciton recombination in a neutral Ni2+ doped quantum dot
K. E. Polczynska, S. Karouaz, W. Pacuski +1
We investigate the optical properties of neutral excitons in CdTe/ZnTe quantum dots containing a single Ni2+ ion. We show that the photoluminescence spectra provide a direct spectr…
Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot
Karolina Ewa PoÅczyÅska, Tomasz Kazimierczuk, Piotr Kossacki +1
We present the basic properties of a new physical system: an individual V2+ ion embedded into an individual quantum dot. The system is realized utilizing molecular beam epitaxy and…
Exciton coherence propagation measured with non-local four-wave mixing micro-spectroscopy
Mateusz RaczyÅski, Amadeusz DydniaÅski, Karolina Ewa PoÅczyÅska +8
Coherence transfer is a multi-disciplinary topic of interest, including chemistry, biology and physics. In quantum technologies, achieving non-local coherent coupling between solid…
Hole to Electron Crossover in a (Cd,Mn)Te Quantum Well through Surface Metallization
Amadeusz DydniaÅski, Mateusz RaczyÅski, Aleksandra Åopion +5
In this work we look into how the contact material influences the local charge properties of a p-type CdTe-based quantum well. We study five metals deposited as 10 nm layers on the…