Semiconductors articles within Nature Nanotechnology

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  • Article |

    A novel scanning single-electron charging spectroscopy enables nanometre-scale imaging of quasiparticle excitations and thermodynamic gaps in generalized Wigner crystals.

    • Hongyuan Li
    • , Ziyu Xiang
    •  & Feng Wang

  • Article |

    High-energy interlayer excitons in van der Waals semiconducting transition metal dichalcogenides lie far above the bandgap and emit in the ultraviolet range.

    • Kai-Qiang Lin
    • , Paulo E. Faria Junior
    •  & John M. Lupton

  • News & Views |

    A Berry curvature dipole can be generated at certain symmetry-mismatched van der Waals hetero-interfaces even though each material has no Berry curvature dipole in its band structure.

    • Paul Seifert
    •  & Christoph Kastl

  • News & Views |

    High-Tc superconducting nanowire detectors can detect single photons of telecom wavelengths at a temperature of 25 K and may enable applications in quantum sensing and quantum information processing.

    • Jin Chang
    •  & Iman Esmaeil Zadeh

  • Article |

    Strong intrinsic spin–orbit interaction unlocks the potential of circuit quantum electrodynamics with hole spins in silicon, resulting in strong spin–photon coupling of 300 MHz.

    • Cécile X. Yu
    • , Simon Zihlmann
    •  & Romain Maurand

  • Letter |

    Electrons in two-dimensional semiconductor moiré materials experience competing magnetic interactions. Magneto-optical measurements of moiré devices with controlled screening of the Coulomb interactions now evidence a Wigner–Mott insulating state with frustrated magnetic interactions.

    • Yanhao Tang
    • , Kaixiang Su
    •  & Jie Shan

  • Letter |

    The interaction between distinct excitations in solids is of both fundamental interest and technological importance. The layered magnetic semiconductor CrSBr exhibits strong coupling between excitons and coherently hybridized magnons, where both magnetic fields and strain can tune the coupling precisely.

    • Geoffrey M. Diederich
    • , John Cenker
    •  & Xiaodong Xu

  • Letter |

    Twisting bilayer graphene to specific angles can yield correlated phases. A superconducting quantum interference device made from this magic-angle twisted bilayer graphene makes it possible to control the phase drop across a Josephson junction in this material.

    • Elías Portolés
    • , Shuichi Iwakiri
    •  & Folkert K. de Vries

  • Article
    | Open Access

    Operation sweet spots decouple hole spin qubits in silicon from charge noise while conserving full electrical control and allowing for spin coherence times of up to 88 μs.

    • N. Piot
    • , B. Brun
    •  & S. De Franceschi

  • Review Article |

    This Review elaborates on the recent developments and the future opportunities and challenges of fundamental research on semiconductor moiré materials, with a particular focus on transition metal dichalcogenides.

    • Kin Fai Mak
    •  & Jie Shan

  • Review Article |

    This Review discusses the recent progress in the emerging field of exciton phenomena in semiconductor moiré superlattices.

    • Di Huang
    • , Junho Choi
    •  & Xiaoqin Li

  • Letter |

    Moiré trions are observed in electrostatically gated WSe2/MoSe2 heterobilayers, where photoluminescence polarization switching reveals a competition between valley-flip and spin-flip relaxation pathways of photo-excited carriers during trion formation.

    • Xi Wang
    • , Jiayi Zhu
    •  & Xiaodong Xu

  • Letter |

    Among the candidates for large-scale quantum computing devices, silicon-based spin qubits offer an outstanding nanofabrication capability for scaling-up. In an array of three spin qubits in silicon, high-fidelity state preparation and control enable the creation of a three-qubit Greenberger–Horne–Zeilinger state with 88% state fidelity.

    • Kenta Takeda
    • , Akito Noiri
    •  & Seigo Tarucha

  • Letter |

    In situ electrostatic control of two-dimensional superconductivity is commonly limited due to large charge carrier densities. Now, by means of local gates, electrostatic gating can define a Josephson junction in a magic-angle twisted bilayer graphene device, a single-crystal material.

    • Folkert K. de Vries
    • , Elías Portolés
    •  & Peter Rickhaus

  • Article |

    On-chip, long-distance entanglement of spin qubits in semiconductors could enable connectivity of quantum core units for networked quantum computing. The moving trapping potential of a surface acoustic wave can subsequently displace two entangled spins while preserving entanglement over a separation of 6 μm.

    • Baptiste Jadot
    • , Pierre-André Mortemousque
    •  & Tristan Meunier

  • Article |

    Quantum computing requires fast and selective control of a large number of individual qubits while maintaining coherence, which is hard to achieve concomitantly. All-electrical operation of a hole spin qubit in a Ge/Si nanowire demonstrates the principle of switching from a mode of selective and fast control to idling with increased coherence.

    • Florian N. M. Froning
    • , Leon C. Camenzind
    •  & Floris R. Braakman

  • Article |

    Epitaxial quantum dot charge spin qubits offer efficient quantum light links, but their coherence is limited by interactions with the nanoscale ensemble of atomic nuclear spins. Employing nuclear spins instead as its hardware, strain-free GaAs/AlGaAs quantum dots can constitute a fully functional two-qubit quantum register.

    • Evgeny A. Chekhovich
    • , Saimon F. Covre da Silva
    •  & Armando Rastelli

  • Letter |

    Interlayer excitons in bilayer MoS2 exhibit both a high oscillator strength and highly tunable energies in an applied electric field.

    • Nadine Leisgang
    • , Shivangi Shree
    •  & Bernhard Urbaszek

  • News & Views |

    Breaking the mirror symmetry in twisted bilayer MoSe2 results in large scale exciton dipole oriented domains in a two-dimensional homostructure.

    • Paulina Plochocka

  • Letter |

    In a radiative Auger process, an excited electron relaxes by concomitant emission of a redshifted photon and energy transfer to another electron. Measuring radiative Auger processes in a quantum dot with single-photon resolution enables determination of the energy of single-electron levels as well as their lifetimes.

    • Matthias C. Löbl
    • , Clemens Spinnler
    •  & Richard J. Warburton

  • News & Views |

    The motion of a single electron can now be sampled with picosecond resolution, which helps to characterize and understand non-equilibrium electron dynamics in nanoscale conductors.

    • G. Fève

  • Letter |

    The internal electron dynamics of submicrometre devices are hard to resolve because of bandwidth limitations of current measurement techniques. Here, the authors sample the 250 GHz coherent oscillation of a single-electron wave packet inside a quantum dot at 4.2 K employing a resonant level.

    • Gento Yamahata
    • , Sungguen Ryu
    •  & Masaya Kataoka

  • Article |

    Local changes of the Coulomb interaction due to external dielectric environment fluctuations present a new type of disorder in monolayer transition-metal dichalcogenides.

    • Archana Raja
    • , Lutz Waldecker
    •  & Alexey Chernikov

  • Letter |

    Random sequences of unitary gate operations on an exchange-only qubit encoded in three physical electron qubits are performed using only voltage pulses and exhibit an average total error of 0.35%, where half of the error originates from leakage out of the computational subspace caused by interactions with substrate nuclear spins.

    • Reed W. Andrews
    • , Cody Jones
    •  & Matthew G. Borselli

  • Letter |

    The spin state of electrons in a double quantum dot in silicon is read in a single shot with 98% average fidelity within 6 μs by means of an on-chip superconducting resonator connected to two of the gates defining the double dot structure.

    • Guoji Zheng
    • , Nodar Samkharadze
    •  & Lieven M. K. Vandersypen

  • Letter |

    Gate reflectometry on an ancillary dot coupled to an electron reservoir is used to read the spin of a qubit in a CMOS device in a single shot with an average fidelity above 98% within 0.5 ms.

    • Matias Urdampilleta
    • , David J. Niegemann
    •  & Tristan Meunier

  • Review Article |

    Until recently, the family of 2D materials was missing one crucial member — 2D magnets. This Review presents an overview of the 2D magnets studied so far and of the heterostructures that can be realized by combining them with other 2D materials.

    • M. Gibertini
    • , M. Koperski
    •  & K. S. Novoselov

  • Letter |

    While measurement of an electron spin commonly destroys it, the quantum non-demolition measurement implemented here for an electron spin qubit in a semiconductor quantum dot preserves the measured spin and allows for exponential suppression of readout errors by repeated measurements.

    • Takashi Nakajima
    • , Akito Noiri
    •  & Seigo Tarucha

  • Letter |

    Under the application of a magnetic field, the 2D electron gas in a gated MoS2 monolayer becomes spin-polarized, the Coulomb interaction probably being key to the symmetry breaking.

    • Jonas Gaël Roch
    • , Guillaume Froehlicher
    •  & Richard John Warburton

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