Nanoscale materials

  • Article |

    A study demonstrates the synthesis and characterization of a two-dimensional van der Waals heterostructure hosting artificial heavy fermions, providing a tunable platform for investigations of heavy-fermion physics.

    • Viliam Vaňo
    • , Mohammad Amini
    •  & Peter Liljeroth
  • Article |

    Preparing amorphous phases of carbon with mostly sp3 bonding in bulk is challenging, but macroscopic samples that are nearly pure sp3 are synthesized here by heating fullerenes at high pressure.

    • Yuchen Shang
    • , Zhaodong Liu
    •  & Bingbing Liu
  • Article |

    Four-dimensional electron energy-loss spectroscopy measurements of the vibrational spectra and the phonon dispersion at a heterointerface show localized modes that are predicted to affect the thermal conductance and electron mobility.

    • Ruishi Qi
    • , Ruochen Shi
    •  & Peng Gao
  • Article |

    Using scanning tunnelling microscopy and spectroscopy, fractional edge excitations are observed in nanographene spin chains, enabling the potential to study strongly correlated phases in purely organic materials.

    • Shantanu Mishra
    • , Gonçalo Catarina
    •  & Roman Fasel
  • Article
    | Open Access

    Extremely anisotropic thermal conductors based on large-area van der Waals thin films with random interlayer rotations are reported here.

    • Shi En Kim
    • , Fauzia Mujid
    •  & Jiwoong Park
  • Review Article |

    This Review discusses the state of the art of interface optics—including refractive optics, meta-optics and moiré engineering—for the control of van der Waals polaritons.

    • Qing Zhang
    • , Guangwei Hu
    •  & Cheng-Wei Qiu
  • Article |

    Gold nanoflake pairs form by self-assembly in an aqueous ligand solution and offer stable and tunable microcavities by virtue of equilibrium between attractive Casimir forces and repulsive electrostatic forces.

    • Battulga Munkhbat
    • , Adriana Canales
    •  & Timur O. Shegai
  • Article |

    Restricting the initial growth temperatures used for chemical vapour deposition of graphene on metal foils produces optimum conditions for growing large areas of fold-free, single-crystal graphene.

    • Meihui Wang
    • , Ming Huang
    •  & Rodney S. Ruoff
  • Article |

    A large violation of the Pauli limit and re-entrant superconductivity in a magnetic field is reported for magic-angle twisted trilayer graphene, suggesting that the spin configuration of the superconducting state of this material is unlikely to consist of spin singlets.

    • Yuan Cao
    • , Jeong Min Park
    •  & Pablo Jarillo-Herrero
  • Perspective |

    Inanimate matter is beginning to show some signs of basic intelligence—the ability to sense, actuate and use memory, as controlled by an internal communication network in functional materials.

    • C. Kaspar
    • , B. J. Ravoo
    •  & W. H. P. Pernice
  • Article |

    Ligand-protected gold nanoclusters are engineered to form complex arrangements of double and quadruple helices, which are based on the pairing of motifs on neighbouring enantiomers, akin to the base pairing seen in DNA double helices.

    • Yingwei Li
    • , Meng Zhou
    •  & Rongchao Jin
  • Article |

    Optical experiments on WSe2/MoSe2 heterobilayers reveal signatures of moiré trions, including interlayer emission with sharp lines and a complex charge-density dependence, features that differ markedly from those of conventional trions.

    • Erfu Liu
    • , Elyse Barré
    •  & Chun Hung Lui
  • Article |

    Through precise structural engineering, perovskite nanocrystals are co-assembled with other nanocrystal materials to form a range of binary and ternary perovskite-type superlattices that exhibit superfluorescence.

    • Ihor Cherniukh
    • , Gabriele Rainò
    •  & Maksym V. Kovalenko
  • Article |

    A 3D-printing strategy involving jets of charged aerosol particles guided by electric-field lines allows direct deposition of various metal nanostructures, including helices, letters and vertical split-ring resonator structures.

    • Wooik Jung
    • , Yoon-Ho Jung
    •  & Mansoo Choi
  • Article |

    Polymer-covered inorganic nanoparticles are designed to self-assemble into micrometre-sized superlattice crystallites that can subsequently be built into freestanding centimetre-scale solids with hierarchical order across seven orders of magnitude.

    • Peter J. Santos
    • , Paul A. Gabrys
    •  & Robert J. Macfarlane
  • Article |

    The binding of multidentate ligands to the surface of lead halide perovskite nanocrystals suppresses the formation of surface defects that result in halide segregation, yielding materials with efficient and colour-stable red emission.

    • Yasser Hassan
    • , Jong Hyun Park
    •  & Henry J. Snaith
  • Article |

    Using lanthanide-doped nanomaterials and flexible substrates, an approach that enables flat-panel-free, high-resolution, three-dimensional imaging is demonstrated and termed X-ray luminescence extension imaging.

    • Xiangyu Ou
    • , Xian Qin
    •  & Xiaogang Liu
  • Article |

    Nano-Raman spectroscopy reveals localization of some vibrational modes in reconstructed twisted bilayer graphene and provides qualitative insights into how electron–phonon coupling affects the vibrational and electronic properties of the material.

    • Andreij C. Gadelha
    • , Douglas A. A. Ohlberg
    •  & Ado Jorio
  • Article |

    Dispersion of colloidal disks in a nematic liquid crystal reveals several low-symmetry phases, including monoclinic colloidal nematic order, with interchange between them achieved through variations in temperature, concentration and surface charge.

    • Haridas Mundoor
    • , Jin-Sheng Wu
    •  & Ivan I. Smalyukh
  • Article |

    Room-temperature photon avalanching realized in single thulium-doped upconverting nanocrystals enables super-resolution imaging at near-infrared wavelengths of maximal biological transparency and provides a material platform potentially suitable for other optical technologies.

    • Changhwan Lee
    • , Emma Z. Xu
    •  & P. James Schuck
  • Article |

    Pronounced quantum oscillations in magnetoresistance, a phenomenon that was only expected in metals with highly mobile carriers, are observed in the strongly insulating state of two-dimensional WTe2.

    • Pengjie Wang
    • , Guo Yu
    •  & Sanfeng Wu
  • Article |

    A van der Waals structure based on a two-dimensional magnet and layered superconductor offers a potential system in which topological superconductivity could be easily tuned and integrated into devices.

    • Shawulienu Kezilebieke
    • , Md Nurul Huda
    •  & Peter Liljeroth
  • Article |

    In the tiniest of capillaries, barely larger than a water molecule, condensation is surprisingly predictable from the macroscopic Kelvin condensation equation, a coincidence partially owing to elastic deformation of the capillary walls.

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

    Electronic ferroelectricity is observed in a graphene-based moiré heterostructure, which is explained using a spontaneous interlayer charge-transfer model driven by layer-specific on-site Coulomb repulsion.

    • Zhiren Zheng
    • , Qiong Ma
    •  & Pablo Jarillo-Herrero
  • Article |

    Logic operations and reconfigurable circuits are demonstrated that can be directly implemented using memory elements based on floating-gate field-effect transistors with monolayer MoS2 as the active channel material.

    • Guilherme Migliato Marega
    • , Yanfei Zhao
    •  & Andras Kis
  • Article |

    Cadmium-free blue quantum dot light-emitting diodes are constructed with a quantum yield of unity, an efficiency at the theoretical limit, high brightness and long operational lifetime.

    • Taehyung Kim
    • , Kwang-Hee Kim
    •  & Eunjoo Jang
  • Article |

    An ultimately thin microwave bolometric sensor based on a superconductor–graphene–superconductor Josephson junction with monolayer graphene has a sensitivity approaching the fundamental limit imposed by intrinsic thermal fluctuations.

    • Gil-Ho Lee
    • , Dmitri K. Efetov
    •  & Kin Chung Fong
  • 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 |

    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