Nanoscience and technology

  • Article |

    Electrophysical processes are used to create third-order nanoscale circuit elements, and these are used to realize a transistorless network that can perform Boolean operations and find solutions to a computationally hard graph-partitioning problem.

    • Suhas Kumar
    • , R. Stanley Williams
    •  & Ziwen Wang
  • Article |

    A fundamental superconducting qubit is introduced: ‘blochnium’ is dual to the transmon, relies on a circuit element called hyperinductance, and its fundamental physical variable is the quasicharge of the Josephson junction.

    • Ivan V. Pechenezhskiy
    • , Raymond A. Mencia
    •  & Vladimir E. Manucharyan
  • Article |

    The building blocks of the nanostructures observed on Drosophila corneas are determined, and then used to create artificial nanostructures with anti-reflective and anti-adhesive properties.

    • Mikhail Kryuchkov
    • , Oleksii Bilousov
    •  & Vladimir L. Katanaev
  • Article |

    A new class of voltage-controllable electrochemical actuators that are compatible with silicon processing are used to produce over one million sub-hundred-micrometre walking robots on a single four-inch wafer.

    • Marc Z. Miskin
    • , Alejandro J. Cortese
    •  & Itai Cohen
  • Article |

    The semiclassical quantization rule breaks down for a class of dispersionless flat bands, and their anomalous Landau level spectrum is characterized by their Hilbert–Schmidt quantum distance.

    • Jun-Won Rhim
    • , Kyoo Kim
    •  & Bohm-Jung Yang
  • Article |

    Tuning the electronic interactions by changing the dielectric environment of twisted bilayer graphene reveals the disappearance of the insulating states and their replacement by superconducting phases, suggesting a competition between the two phases.

    • Petr Stepanov
    • , Ipsita Das
    •  & Dmitri K. Efetov
  • Article |

    Thin films of amorphous boron nitride are mechanically and electrically robust, prevent diffusion of metal atoms into semiconductors and have ultralow dielectric constants that exceed current recommendations for high-performance electronics.

    • Seokmo Hong
    • , Chang-Seok Lee
    •  & Hyeon Suk Shin
  • Article |

    An imaging method combining soft-landing electrospray ion beam deposition and low-temperature scanning tunnelling microscopy resolves the structures of glycans at sub-nanometre resolution, revealing the connectivity of glycan chains and the types of linkages.

    • X. Wu
    • , M. Delbianco
    •  & K. Kern
  • Article |

    Room-temperature electrical switching of a topological antiferromagnetic state in polycrystalline Mn3Sn thin films is demonstrated using the same protocol as that used for conventional ferromagnetic metals.

    • Hanshen Tsai
    • , Tomoya Higo
    •  & Satoru Nakatsuji
  • Article |

    Lithographically defined qubits are shown to support full two-qubit logic at temperatures above one kelvin by using electron spin states in silicon quantum dots.

    • L. Petit
    • , H. G. J. Eenink
    •  & M. Veldhorst
  • Article |

    An on-chip, all-electronic device based on the formation of a nanoplasma provides ultrafast electron transfer, enabling picosecond switching of electric signals and the generation of high-power terahertz pulses.

    • Mohammad Samizadeh Nikoo
    • , Armin Jafari
    •  & Elison Matioli
  • Article |

    Graphene is shown to be impermeable to helium and several other gases, except for hydrogen, which is attributed to the strong catalytic activity of ripples in the graphene sheet.

    • P. Z. Sun
    • , Q. Yang
    •  & A. K. Geim
  • Article |

    Coherent quantum control of a single 123Sb nucleus using electric fields produced within a silicon nanoelectronic device is demonstrated experimentally, validating a concept predicted theoretically in 1961.

    • Serwan Asaad
    • , Vincent Mourik
    •  & Andrea Morello
  • Article |

    Chiral coupling between neighbouring magnetic domains is used in domain-wall racetracks to realize various all-electric logic operations by cascading the gates.

    • Zhaochu Luo
    • , Aleš Hrabec
    •  & Laura J. Heyderman
  • Article |

    The existence of the Kondo cloud is revealed by the spatially resolved characterization of the oscillations of the Kondo temperature in a Fabry–Pérot interferometer and its extent is shown to be several micrometres.

    • Ivan V. Borzenets
    • , Jeongmin Shim
    •  & Michihisa Yamamoto
  • Article |

    A two-dimensional semiconductor photodiode array senses and processes optical images simultaneously without latency, and is trained to classify and encode images with high throughput, acting as an artificial neural network.

    • Lukas Mennel
    • , Joanna Symonowicz
    •  & Thomas Mueller
  • Article |

    Optical chiral induction and spontaneous gyrotropic electronic order are realized in the transition-metal chalcogenide 1T-TiSe2 by using illumination with mid-infrared circularly polarized light and simultaneous cooling below the critical temperature.

    • Su-Yang Xu
    • , Qiong Ma
    •  & Nuh Gedik
  • Article |

    High-pressure diamond anvil cell experiments reveal that compression strengthening of nanocrystalline nickel increases as its grain sizes decrease to 3 nanometres, owing to dislocation hardening and suppression of grain boundary plasticity.

    • Xiaoling Zhou
    • , Zongqiang Feng
    •  & Bin Chen
  • Article |

    A universal mechanical exfoliation method of creating freestanding membranes of complex-oxide materials with different crystal structures and orientations and stacking them to produce a range of artificial heterostructures with hybridized physical properties is described.

    • Hyun S. Kum
    • , Hyungwoo Lee
    •  & Jeehwan Kim
  • Article |

    A fully hardware-based memristor convolutional neural network using a hybrid training method achieves an energy efficiency more than two orders of magnitude greater than that of graphics-processing units.

    • Peng Yao
    • , Huaqiang Wu
    •  & He Qian
  • Article |

    A synthetic approach is described, for efficiently converting non-van der Waals solids into two-dimensional van der Waals transition-metal chalcogenide layers with specific phases, enabling the high-throughput production of monolayers.

    • Zhiguo Du
    • , Shubin Yang
    •  & Pulickel M. Ajayan
  • Article |

    Spin qubits based on hole states in strained germanium could offer the most scalable platform for quantum computation.

    • N. W. Hendrickx
    • , D. P. Franke
    •  & M. Veldhorst
  • Article |

    A growth process in which protons decouple graphene from the underlying substrate greatly reduces the number of wrinkles that usually degrade large graphene films grown by chemical vapour deposition.

    • Guowen Yuan
    • , Dongjing Lin
    •  & Libo Gao
  • Article |

    Microwave-mediated coupling of electron spins separated by more than 4 mm is demonstrated, suggesting the possibility of using photons at microwave frequencies to create long-range two-qubit gates between distant spins.

    • F. Borjans
    • , X. G. Croot
    •  & J. R. Petta
  • Article |

    The emergence of a liquid-like electronic flow from ballistic flow in graphene is imaged, and an almost-ideal viscous hydrodynamic fluid of electrons exhibiting a parabolic Poiseuille flow profile is observed.

    • Joseph A. Sulpizio
    • , Lior Ella
    •  & Shahal Ilani
  • Perspective |

    The authors review the advantages and future prospects of neuromorphic computing, a multidisciplinary engineering concept for energy-efficient artificial intelligence with brain-inspired functionality.

    • Kaushik Roy
    • , Akhilesh Jaiswal
    •  & Priyadarshini Panda
  • Article |

    A method of engineering efficient and stable InP/ZnSe/ZnS quantum dot light-emitting diodes (QD-LEDs) has improved their performance to the level of state-of-the-art cadmium-containing QD-LEDs, removing the problem of the toxicity of cadmium in large-panel displays.

    • Yu-Ho Won
    • , Oul Cho
    •  & Eunjoo Jang
  • Article |

    A micromachine less than 100 micrometres across, made of arrays of nanomagnets on hinged panels, is encoded with multiple shape transformations  and actuated with a magnetic field.

    • Jizhai Cui
    • , Tian-Yun Huang
    •  & Laura J. Heyderman