Nanoscience and technology

  • Article |

    By examining three model pyroelectric materials with different bonding characters along the out-of-plane direction, it is shown that their pyroelectric coefficients increase rapidly when the thickness of free-standing sheets becomes small.

    • Jie Jiang
    • , Lifu Zhang
    •  & Jian Shi
  • Article
    | Open Access

    A nanoscale rotary motor made of DNA origami, driven by ratcheting and powered by an external electric field, shows the ability to wind up a spring and has mechanical capabilities approaching those of biological motors.

    • Anna-Katharina Pumm
    • , Wouter Engelen
    •  & Hendrik Dietz
  • Perspective |

    Developments, challenges and opportunities in using two-dimensional materials for the next generation of non-volatile spin-based memory technologies are reviewed, and possible disruptive improvements are discussed.

    • Hyunsoo Yang
    • , Sergio O. Valenzuela
    •  & Stephan Roche
  • Article |

    Using a chemical vapour deposition method, it is possible to epitaxially grow wafer-scale single-crystal trilayers of hexagonal boron nitride—an important dielectric for 2D materials—on Ni (111) foils by boron dissolution.

    • Kyung Yeol Ma
    • , Leining Zhang
    •  & Hyeon Suk Shin
  • Article |

    Electrically controlled quantum confinement of excitons to below 10 nm is achieved in a 2D semiconductor by combining in-plane electric fields with interactions between excitons and free charges.

    • Deepankur Thureja
    • , Atac Imamoglu
    •  & Puneet A. Murthy
  • Article |

    Light-field control of real and virtual charge carriers in a gold–graphene–gold heterostructure is demonstrated, and used to create a logic gate for application in lightwave electronics.

    • Tobias Boolakee
    • , Christian Heide
    •  & Peter Hommelhoff
  • Article |

    A solid-state single-electron qubit platform is demonstrated based on trapping and manipulating isolated single electrons on an ultraclean solid neon surface in vacuum, which performs near the state of the art for a charge qubit.

    • Xianjing Zhou
    • , Gerwin Koolstra
    •  & Dafei Jin
  • Article |

    Three tunable quantum Hall broken-symmetry states in charge-neutral graphene are identified by visualizing their lattice-scale order with scanning tunnelling microscopy and spectroscopy.

    • Alexis Coissard
    • , David Wander
    •  & Benjamin Sacépé
  • Article |

    Two new plasmon modes are observed in macroscopic twisted bilayer graphene with a highly ordered moiré superlattice, the first being the signature of chiral plasmons and the second a slow plasmonic mode around 0.4 electronvolts.

    • Tianye Huang
    • , Xuecou Tu
    •  & Xiaomu Wang
  • Article |

    Piezoelectric coupling of a single superconducting qubit to two phononic crystal nanoresonators results in an integrated device that is able to control and read out the quantum state of the two mechanical resonators.

    • E. Alex Wollack
    • , Agnetta Y. Cleland
    •  & Amir H. Safavi-Naeini
  • Article |

      . Triplet fusion upconversion nanocapsules dispersed in a photopolymerizable resin allow for volumetric 3D printing at low-power continuous-wave excitation without support structures. 

    • Samuel N. Sanders
    • , Tracy H. Schloemer
    •  & Daniel N. Congreve
  • Article |

    The molecular chemical ‘fuelling’ of the catalysis-driven motor 1-phenylpyrrole 2,2′-dicarboxylic acid, which operates by a Brownian information ratchet mechanism, facilitates dynamics that are otherwise kinetically inaccessible.

    • Stefan Borsley
    • , Elisabeth Kreidt
    •  & Benjamin M. W. Roberts
  • Article |

    In the standard Si transistor gate stack, replacing conventional dielectric HfO2 with an ultrathin ferroelectric–antiferroelectric HfO2–ZrO2 heterostructure exhibiting the negative capacitance effect demonstrates ultrahigh capacitance without degradation in leakage and mobility, promising for ferroelectric integration into advanced logic technology.

    • Suraj S. Cheema
    • , Nirmaan Shanker
    •  & Sayeef Salahuddin
  • Article |

    In situ scanning tunnelling microscopy reveals the dynamic nature of the early stages of two-dimensional (2D) polymer formation and crystallization at the solid–liquid interface.

    • Gaolei Zhan
    • , Zhen-Feng Cai
    •  & Steven De Feyter
  • Article |

    A metastable palladium hydride is synthesized where the unique environment in the liquid cell, namely the limited quantity of Pd precursors and the continuous supply of H, resulted in the formation of the hcp phase.

    • Jaeyoung Hong
    • , Jee-Hwan Bae
    •  & Dong Won Chun
  • Article |

    Ultra-scaled transistors based on two-dimensional MoS2 with physical gate lengths of 0.34 nm are reported, which show relatively good electrical characteristics and can be switched off.

    • Fan Wu
    • , He Tian
    •  & Tian-Ling Ren
  • Article |

    Via spin-exchange interactions with 51V5+ ions, an optically addressed 171Yb3+ qubit in a nuclear-spin-rich yttrium orthovanadate crystal is used to implement a reproducible nuclear-spin-based quantum memory, and entangled Yb–V Bell states are demonstrated.

    • Andrei Ruskuc
    • , Chun-Ju Wu
    •  & Andrei Faraon
  • Article |

    Single- and two-qubit gate fidelities above the fault-tolerance threshold for quantum computation are demonstrated in silicon quantum dots by fast electrical control using a micromagnet-induced gradient field and tunable coupling.

    • Akito Noiri
    • , Kenta Takeda
    •  & Seigo Tarucha
  • Article |

    Universal quantum logic operations with fidelity exceeding 99%, approaching the threshold of fault tolerance, are realized in a scalable silicon device comprising an electron and two phosphorus nuclei, and a fidelity of 92.5% is obtained for a three-qubit entangled state.

    • Mateusz T. Mądzik
    • , Serwan Asaad
    •  & Andrea Morello
  • Article |

    ‘Cooperative redox enhancement (CORE) effects, which arise through the coupling of oxidative dehydrogenation and oxygen reduction reactions, can lead to increased rates of reaction over spatially separated bimetallic heterogeneous catalysts.

    • Xiaoyang Huang
    • , Ouardia Akdim
    •  & Graham J. Hutchings
  • 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