The germanium quantum information route

G Scappucci, C Kloeffel, FA Zwanenburg… - Nature Reviews …, 2021 - nature.com
In the effort to develop disruptive quantum technologies, germanium is emerging as a
versatile material to realize devices capable of encoding, processing and transmitting …

Monolithically integrated Ge-on-Si active photonics

J Liu - Photonics, 2014 - mdpi.com
Monolithically integrated, active photonic devices on Si are key components in Si-based
large-scale electronic-photonic integration for future generations of high-performance, low …

Gate-controlled quantum dots and superconductivity in planar germanium

NW Hendrickx, DP Franke, A Sammak… - Nature …, 2018 - nature.com
Superconductors and semiconductors are crucial platforms in the field of quantum
computing. They can be combined to hybrids, bringing together physical properties that …

Shallow and undoped germanium quantum wells: a playground for spin and hybrid quantum technology

A Sammak, D Sabbagh, NW Hendrickx… - Advanced Functional …, 2019 - Wiley Online Library
Buried‐channel semiconductor heterostructures are an archetype material platform for the
fabrication of gated semiconductor quantum devices. Sharp confinement potential is …

Electronic and optical properties of two-dimensional heterostructures based on Janus XSSe (X= Mo, W) and Mg (OH) 2: A first principles investigation

J Lou, K Ren, Z Huang, W Huo, Z Zhu, J Yu - RSC advances, 2021 - pubs.rsc.org
Two-dimensional (2D) materials have attracted numerous investigations after the discovery
of graphene. 2D van der Waals (vdW) heterostructures are a new generation of layered …

Optical spin injection and spin lifetime in Ge heterostructures

F Pezzoli, F Bottegoni, D Trivedi, F Ciccacci… - Physical Review Letters, 2012 - APS
We demonstrate optical orientation in Ge/SiGe quantum wells and study their spin
properties. The ultrafast electron transfer from the center of the Brillouin zone to its edge …

Strain relaxation in high Ge content SiGe layers deposited on Si

G Capellini, M De Seta, Y Busby, M Pea… - Journal of Applied …, 2010 - pubs.aip.org
We have used Raman spectroscopy, transmission electron microscopy, x-ray diffraction, and
x-ray photoemission spectroscopy to investigate strain relaxation mechanism of Si 0.22 Ge …

Quantum transport quality of a processed undoped Ge/SiGe heterostructure

YX Li, Z Kong, S Hou, G Wang, S Huang - Physical Review B, 2023 - APS
A degraded mobility of 5.2× 10 5 cm 2 V− 1 s− 1 but a long quantum scattering time of 2.3 ps
at the hole density of 2.25× 10 11 cm− 2 were obtained from a two-dimensional hole gas in a …

Dangling bonds as possible contributors to charge noise in silicon and silicon–germanium quantum dot qubits

JB Varley, KG Ray, V Lordi - ACS Applied Materials & Interfaces, 2023 - ACS Publications
Spin qubits based on Si and Si1–x Ge x quantum dot architectures exhibit among the best
coherence times of competing quantum computing technologies, yet they still suffer from …

Ultrafast nonlinear optical response of photoexcited Ge/SiGe quantum wells: Evidence for a femtosecond transient population inversion

C Lange, NS Köster, S Chatterjee, H Sigg… - Physical Review B …, 2009 - APS
Femtosecond time-resolved pump-probe spectroscopy is used to investigate the ultrafast
carrier dynamics of Ge/SiGe quantum wells grown on a Si substrate. Pronounced …