Micrometre-scale refrigerators

JT Muhonen, M Meschke… - Reports on Progress in …, 2012 - iopscience.iop.org
A superconductor with a gap in the density of states or a quantum dot with discrete energy
levels is a central building block in realizing an electronic on-chip cooler. They can work as …

Parity-conserving Cooper-pair transport and ideal superconducting diode in planar germanium

M Valentini, O Sagi, L Baghumyan, T de Gijsel… - Nature …, 2024 - nature.com
Superconductor/semiconductor hybrid devices have attracted increasing interest in the past
years. Superconducting electronics aims to complement semiconductor technology, while …

Josephson diode effect in high-mobility InSb nanoflags

B Turini, S Salimian, M Carrega, A Iorio, E Strambini… - Nano Letters, 2022 - ACS Publications
We report nonreciprocal dissipation-less transport in single ballistic InSb nanoflag
Josephson junctions. Applying an in-plane magnetic field, we observe an inequality in …

The first room-temperature ambient-pressure superconductor

S Lee, JH Kim, YW Kwon - arXiv preprint arXiv:2307.12008, 2023 - arxiv.org
For the first time in the world, we succeeded in synthesizing the room-temperature
superconductor ($ T_c\ge 400$ K, 127$^\circ $ C) working at ambient pressure with a …

Proximity coupling in superconductor-graphene heterostructures

GH Lee, HJ Lee - Reports on Progress in Physics, 2018 - iopscience.iop.org
This review discusses the electronic properties and the prospective research directions of
superconductor-graphene heterostructures. The basic electronic properties of graphene are …

4π-periodic Josephson supercurrent in HgTe-based topological Josephson junctions

J Wiedenmann, E Bocquillon, RS Deacon… - Nature …, 2016 - nature.com
The Josephson effect describes the generic appearance of a supercurrent in a weak link
between two superconductors. Its exact physical nature deeply influences the properties of …

Evidence of higher-order topology in multilayer WTe2 from Josephson coupling through anisotropic hinge states

YB Choi, Y Xie, CZ Chen, J Park, SB Song, J Yoon… - Nature Materials, 2020 - nature.com
Abstract Td-WTe2 (non-centrosymmetric and orthorhombic), a type-II Weyl semimetal, is
expected to have higher-order topological phases with topologically protected, helical one …

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 …

Josephson junction infrared single-photon detector

ED Walsh, W Jung, GH Lee, DK Efetov, BI Wu… - Science, 2021 - science.org
Josephson junctions are superconducting devices used as high-sensitivity magnetometers
and voltage amplifiers as well as the basis of high-performance cryogenic computers and …

A tunable monolithic SQUID in twisted bilayer graphene

E Portolés, S Iwakiri, G Zheng, P Rickhaus… - Nature …, 2022 - nature.com
Magic-angle twisted bilayer graphene (MATBG) hosts a number of correlated states of
matter that can be tuned by electrostatic doping,,–. Transport, and scanning-probe …