Electronic and optical properties of semiconductor and graphene quantum dots

W Sheng, M Korkusinski, AD Güçlü, M Zielinski… - Frontiers of …, 2012‏ - Springer
Our recent work on the electronic and optical properties of semiconductor and graphene
quantum dots is reviewed. For strained self-assembled InAs quantum dots on GaAs or InP …

Observation of extremely slow hole spin relaxation in self-assembled quantum dots

D Heiss, S Schaeck, H Huebl, M Bichler… - Physical Review B …, 2007‏ - APS
We report the measurement of extremely slow hole spin relaxation dynamics in small
ensembles of self-assembled InGaAs quantum dots. Individual spin oriented holes are …

Spin noise of electrons and holes in self-assembled quantum dots

SA Crooker, J Brandt, C Sandfort, A Greilich… - Physical review …, 2010‏ - APS
We measure the frequency spectra of random spin fluctuations, or “spin noise,” in
ensembles of (In, Ga) As/GaAs quantum dots (QDs) at low temperatures. We employ a spin …

Anisotropy of electron and hole g-factors in (In, Ga) As quantum dots

A Schwan, BM Meiners, A Greilich… - Applied Physics …, 2011‏ - pubs.aip.org
The g-factor tensors of electron and hole in self-assembled (In, Ga) As/GaAs quantum dots
are studied by time-resolved ellipticity measurements in a three dimensional vector magnet …

Spin-3 2 physics of semiconductor hole nanowires: Valence-band mixing and tunable interplay between bulk-material and orbital bound-state spin splittings

D Csontos, P Brusheim, U Zülicke, HQ Xu - Physical Review B—Condensed …, 2009‏ - APS
We present a detailed theoretical study of the electronic spectrum and Zeeman splitting in
hole quantum wires. The spin-3 2 character of the topmost bulk-valence-band states results …

Electrically controllable tensors in quantum dot molecules

T Andlauer, P Vogl - Physical Review B—Condensed Matter and Materials …, 2009‏ - APS
We present a quantitative theoretical analysis of electron, hole, and exciton g tensors of
vertically coupled InAs/GaAs quantum dot pairs in external electric and magnetic fields. For …

Andreev spin-noise detector

R Capecelatro, V Brosco, G Campagnano… - Physical Review B, 2023‏ - APS
We investigate the possibility to employ magnetic Josephson junctions as magnetic noise
detectors. To illustrate our idea, we consider a system consisting of a quantum dot coupled …

Spin-orbit coupling and magnetic-field dependence of carrier states in a self-assembled quantum dot

K Gawarecki - Physical Review B, 2018‏ - APS
In this work, we investigate the influence of spin-orbit coupling on the magnetic-field
dependence of carrier states in a self-assembled quantum dot. The electron and hole …

Electron and hole factors in InAs/InAlGaAs self-assembled quantum dots emitting at telecom wavelengths

VV Belykh, A Greilich, DR Yakovlev, M Yacob… - Physical Review B, 2015‏ - APS
We extend the range of quantum dot (QD) emission energies where electron and hole g
factors have been measured to the practically important telecom range. The spin dynamics …

Homogeneous optical anisotropy in an ensemble of InGaAs quantum dots induced by strong enhancement of the heavy-hole band Landé parameter

AV Trifonov, IA Akimov, LE Golub, EL Ivchenko… - Physical Review B, 2021‏ - APS
We reveal the existence of a large in-plane heavy-hole g factor in symmetric self-assembled
(001)(In, Ga) As/GaAs quantum dots due to the war** of valence-band states. This …