Opportunities in topological insulator devices

O Breunig, Y Ando - Nature Reviews Physics, 2022 - nature.com
Topological insulators (TIs) hold promise as a platform for unique quantum phenomena.
However, realizing these phenomena experimentally requires sophisticated devices. In this …

The 2021 quantum materials roadmap

F Giustino, JH Lee, F Trier, M Bibes… - Journal of Physics …, 2021 - iopscience.iop.org
In recent years, the notion of'Quantum Materials' has emerged as a powerful unifying
concept across diverse fields of science and engineering, from condensed-matter and …

Quantum transport and potential of topological states for thermoelectricity in Bi2Te3 thin films

P Ngabonziza - Nanotechnology, 2022 - iopscience.iop.org
This paper reviews recent developments in quantum transport and it presents current efforts
to explore the contribution of topological insulator boundary states to thermoelectricity in Bi 2 …

Multiterminal josephson effect

N Pankratova, H Lee, R Kuzmin, K Wickramasinghe… - Physical Review X, 2020 - APS
We report a probable observation of the dc Josephson effect in mesoscopic junctions of
three and four superconductors. The devices are fabricated in a top-down fashion from a …

Nonreciprocal charge transport in topological superconductor candidate Bi2Te3/PdTe2 heterostructure

M Masuko, M Kawamura, R Yoshimi… - npj Quantum …, 2022 - nature.com
In a hybrid system of topological insulator (TI)/superconductor (SC), the proximity-induced
topological superconductivity is expected to appear at the interface. Here we propose and …

Shadow epitaxy for in situ growth of generic semiconductor/superconductor hybrids

DJ Carrad, M Bjergfelt, T Kanne, M Aagesen… - Advanced …, 2020 - Wiley Online Library
Uniform, defect‐free crystal interfaces and surfaces are crucial ingredients for realizing high‐
performance nanoscale devices. A pertinent example is that advances in gate‐tunable and …

Fusion of Majorana bound states with mini-gate control in two-dimensional systems

T Zhou, MC Dartiailh, K Sardashti, JE Han… - Nature …, 2022 - nature.com
A hallmark of topological superconductivity is the non-Abelian statistics of Majorana bound
states (MBS), its chargeless zero-energy emergent quasiparticles. The resulting …

Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator

X Song, S Suresh Babu, Y Bai, DS Golubev… - Communications …, 2023 - nature.com
It is well-known in optics that the spectroscopic resolution of a diffraction grating is much
better compared to an interference device having just two slits, as in Young's famous double …

Half-integer Shapiro steps in highly transmissive InSb nanoflag Josephson junctions

A Iorio, A Crippa, B Turini, S Salimian, M Carrega… - Physical Review …, 2023 - APS
We investigate a ballistic InSb nanoflag-based Josephson junction with Nb superconducting
contacts. The high transparency of the superconductor-semiconductor interfaces enables …

Quantum spin-valley Hall kink states: from concept to materials design

T Zhou, S Cheng, M Schleenvoigt, P Schüffelgen… - Physical Review Letters, 2021 - APS
We propose a general and tunable platform to realize high-density arrays of quantum spin-
valley Hall kink (QSVHK) states with spin-valley-momentum locking based on a two …