Nanoscience and technology

  • Article |

    Decoupling spin-polarized edge states using substitutional N-atom dopants along the edges of a zigzag graphene nanoribbon (ZGNR) reveals giant spin splitting of a N-dopant edge state, and supports the predicted emergent magnetic order in ZGNRs.

    • Raymond E. Blackwell
    • , Fangzhou Zhao
    •  & Felix R. Fischer
  • 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 |

    Engineering of the coupling between optical modes in a lithium niobate chip enables the realization of tunable, bi-directional and low-loss electro-optic frequency shifters controlled using only continuous and single-tone microwaves.

    • Yaowen Hu
    • , Mengjie Yu
    •  & Marko Lončar
  • 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
  • Article |

    In a tiny chip-based particle accelerator, phase-space control of the emerging electron beam demonstrates guiding over a length of nearly 80 micrometres and an indispensable prerequisite to electron acceleration to high energies.

    • R. Shiloh
    • , J. Illmer
    •  & P. Hommelhoff
  • 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 |

    Superconductivity is observed in rhombohedral trilayer graphene in the absence of a moiré superlattice, with two distinct superconducting states both occurring at a symmetry-breaking transition where the Fermi surface degeneracy changes.

    • Haoxin Zhou
    • , Tian Xie
    •  & Andrea F. Young
  • Article |

    A study shows that rhombohedral graphene is an ideal platform for well-controlled tests of many-body theory and reveals that magnetism in moiré materials is fundamentally itinerant in nature.

    • Haoxin Zhou
    • , Tian Xie
    •  & Andrea F. Young
  • 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 |

    High-performance optoelectronic devices that operate in the infrared regime at room temperature exhibit wide-range, active and reversible tunability of the operating wavelengths with black phosphorus.

    • Hyungjin Kim
    • , Shiekh Zia Uddin
    •  & Ali Javey
  • Article |

    Flexible electronic platforms would enable the integration of functional electronic circuitry with many everyday objects; here, a low-cost and fully flexible 32-bit microprocessor is produced.

    • John Biggs
    • , James Myers
    •  & Scott White
  • Article |

    A molecular-scale pump whose operation is driven by a catalytic process when in the presence of chemical fuel is autonomous, within an operating window, as long as the fuel lasts.

    • Shuntaro Amano
    • , Stephen D. P. Fielden
    •  & David A. Leigh
  • Article |

    Direct infrared nano-imaging of plasmonic waves in graphene carrying high current density reveals the Fizeau drag of plasmon polaritons by fast-moving quasi-relativistic electrons.

    • Y. Dong
    • , L. Xiong
    •  & D. N. Basov
  • 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 |

    A localization algorithm is applied to datasets obtained with conventional and high-speed atomic force microscopy to increase image resolution beyond the limits set by the radius of the tip used.

    • George R. Heath
    • , Ekaterina Kots
    •  & Simon Scheuring
  • 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 |

    Nanoscale imaging of edge currents in charge-neutral graphene shows that charge accumulation can explain various exotic nonlocal transport measurements, bringing into question some theories about their origins.

    • A. Aharon-Steinberg
    • , A. Marguerite
    •  & E. Zeldov
  • 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 |

    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 |

    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 |

    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 |

    An integrated photonic processor, based on phase-change-material memory arrays and chip-based optical frequency combs, which can operate at speeds of trillions of multiply-accumulate (MAC) operations per second, is demonstrated.

    • J. Feldmann
    • , N. Youngblood
    •  & H. Bhaskaran
  • Article |

    A chip-scale platform is developed for the conversion of a single microwave excitation of a superconducting qubit into optical photons, with potential uses in quantum computer networks.

    • Mohammad Mirhosseini
    • , Alp Sipahigil
    •  & Oskar Painter
  • 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 |

    Lateral-flow in vitro diagnostic assays based on fluorescent nanodiamonds, in which microwave-based spin manipulation is used to increase sensitivity, are demonstrated using the biotin–avidin model and by the single-copy detection of HIV-1 RNA.

    • Benjamin S. Miller
    • , Léonard Bezinge
    •  & Rachel A. McKendry
  • Article |

    Non-volatile electrical switching of magnetic order in an orbital Chern insulator is experimentally demonstrated using a moiré heterostructure and analysis shows that the effect is driven by topological edge states.

    • H. Polshyn
    • , J. Zhu
    •  & A. F. Young
  • 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