4 papers
Detector-Grade Germanium as a Low-Disorder Host for Indium-Acceptor Spin Qubits: A Five-Qubit Materials-to-Architecture Design Study
D. -M. Mei, K. -M. Dong, S. A. Panamaldeniya +4
Acceptor-bound hole spins in germanium (Ge) offer a promising but underexplored route to semiconductor quantum information processing. We present a theory-guided design study of a…
Temperature-Dependent Charge Transport in USD-Grown High-Purity Germanium: Interplay Between Freeze-Out and Multi-Scattering Mechanisms
Narayan Budhathoki, Dongming Mei, Abhinna Rajbanshi +1
We report temperature-dependent charge transport measurements in p-type high-resistivity germanium crystals grown at the University of South Dakota. Hall-effect and four-probe resi…
Enhancing Sensitivity in Ge-Based Rare-Event Physics Experiments through Underground Crystal Growth and Detector Fabrication
Dongming Mei
The cosmogenic production of long-lived isotopes such as H,Fe, Co, Zn, and Ge poses a significant challenge as a source of background events in Ge…
Exploring the Potential of Residual Impurities in Germanium Detectors for Low-Mass Dark Matter Detection
Dongming Mei
The direct detection of MeV-scale dark matter (DM) particles hinges on achieving an exceptionally low energy detection threshold. Germanium (Ge) detectors, meticulously tailored wi…