Recent progress on Majorana in semiconductor-superconductor heterostructures—engineering and detection

Z Cao, S Chen, G Zhang, DE Liu - Science China Physics, Mechanics & …, 2023 - Springer
Majorana zero modes (MZMs) are exotic excitations (in condensed matter systems) of
fundamental scientific interest and hold great promise as the basis of fault-tolerant …

Ballistic PbTe nanowire devices

Y Wang, F Chen, W Song, Z Geng, Z Yu, L Yang… - Nano Letters, 2023 - ACS Publications
Disorder is the primary obstacle in the current Majorana nanowire experiments. Reducing
disorder or achieving ballistic transport is thus of paramount importance. In clean and …

Selective-area-grown PbTe-Pb planar Josephson junctions for quantum devices

R Li, W Song, W Miao, Z Yu, Z Wang, S Yang… - Nano Letters, 2024 - ACS Publications
Planar Josephson junctions are predicted to host Majorana zero modes. The material
platforms in previous studies are two-dimensional electron gases (InAs, InSb, InAsSb, and …

Gate-tunable subband degeneracy in semiconductor nanowires

Y Wang, W Song, Z Cao, Z Yu, S Yang, Z Li… - Proceedings of the …, 2024 - pnas.org
Degeneracy and symmetry have a profound relation in quantum systems. Here, we report
gate-tunable subband degeneracy in PbTe nanowires with a nearly symmetric cross …

Conductance quantization in PbTe nanowires

W Song, Y Wang, W Miao, Z Yu, Y Gao, R Li, S Yang… - Physical Review B, 2023 - APS
PbTe nanowires coupled to a superconductor have recently been proposed as a potential
Majorana platform. The hallmark of the one-dimensional nature of ballistic nanowires is their …

Reducing disorder in PbTe nanowires for Majorana research

W Song, Z Yu, Y Wang, Y Gao, Z Li, S Yang… - Nano Letters, 2024 - ACS Publications
Material challenges are the key issue in Majorana research, where surface disorder
constrains device performance. Here, we tackle this challenge by embedding PbTe …

Proximity effect in PbTe-Pb hybrid nanowire Josephson junctions

Z Zhang, W Song, Y Gao, Y Wang, Z Yu, S Yang… - Physical Review …, 2023 - APS
Semiconductor-superconductor hybrid nanowires are a leading material platform for the
realization of Majorana zero modes. The semiconductors in previous studies are dominantly …

Hard superconducting gap in PbTe nanowires

Y Gao, W Song, S Yang, Z Yu, R Li, W Miao… - Chinese Physics …, 2024 - iopscience.iop.org
Semiconductor nanowires coupled to a superconductor provide a powerful testbed for
quantum device physics such as Majorana zero modes and gate-tunable hybrid qubits. The …

SQUID oscillations in PbTe nanowire networks

Y Gao, W Song, Z Yu, S Yang, Y Wang, R Li, F Chen… - Physical Review B, 2024 - APS
Network structures by semiconductor nanowires hold great promise for advanced quantum
devices, especially for applications in topological quantum computing. In this paper, we …

Electrostatic environment and Majorana bound states in full-shell topological insulator nanowires

L Chen, XH Pan, Z Cao, DE Liu, X Liu - Physical Review B, 2024 - APS
The combination of a superconductor (SC) and a topological insulator (TI) nanowire was
proposed as a potential candidate for realizing Majorana zero modes (MZMs). In this study …