4 papers
Strain tunability of electron and hole g-factors in CsPb: bulk and nanocrystals
Aleksander Cząstkiewicz, Paweł Scharoch, Krzysztof Gawarecki
In this paper, we theoretically study the electron and hole -factors in inorganic lead-halide perovskites for the reference cubic phase. We employ an 18-band model a…
Light-hole states and hyperfine interaction in electrically-defined Ge/GeSn quantum dots
Agnieszka Miętkiewicz, Jakub Ziembicki, Krzysztof Gawarecki
We theoretically investigate hole spins confined in a gate-defined quantum dot (QD) embedded in GeSn/Ge/GeSn quantum well (QW) structure. Owing to the tensile strain in the Ge laye…
Modeling the g-factors, hyperfine interaction and optical properties of semiconductor QDs: the atomistic and eight-band approaches
Krzysztof Gawarecki, Alina Garbiec, Jakub Stanecki +1
We present a detailed comparative study of two important theoretical approaches: atomistic spds tight-binding and continuum eight-band methods, for modeling…
Electronic and spectral properties of Ge1-xSnx quantum dots: an atomistic study
Krzysztof Gawarecki, Jakub Ziembicki, Paweł Scharoch +1
In this paper, we study theoretically the electron and spectral properties of Ge1-xSnx systems, including alloys, cubic- and spherical quantum dots. The single-particle electron an…