Nanoscale devices articles within Nature

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  • Article |

    The displacement of a mechanical resonator is measured to within 35% of the Heisenberg uncertainty limit, enabling feedback cooling to the quantum ground state, nine decibels below the quantum-backaction limit.

    • Massimiliano Rossi
    • , David Mason
    •  & Albert Schliesser

  • Letter |

    A network of four spin-torque nano-oscillators can be trained in real time to recognize spoken vowels, in a simple and scalable approach that could be exploited for large-scale neural networks.

    • Miguel Romera
    • , Philippe Talatchian
    •  & Julie Grollier

  • Letter |

    A fundamental electronic noise—beyond electronic thermal noise and voltage-activated shot noise—that is generated by temperature differences across nanoscale conductors is demonstrated, with possible implications for thermometry and electronics.

    • Ofir Shein Lumbroso
    • , Lena Simine
    •  & Oren Tal

  • Article |

    Coherent coupling between a three-electron spin qubit and single photons in a microwave resonator is demonstrated, which, unlike previous demonstrations, does not require ferromagnetic components near the qubit.

    • A. J. Landig
    • , J. V. Koski
    •  & T. Ihn

  • Letter |

    Precision control over matter at the atomic scale enables a planar dye molecule to be lifted up and placed on its edge—a configuration that is surprisingly stable.

    • Taner Esat
    • , Niklas Friedrich
    •  & Ruslan Temirov

  • Letter |

    Specular scattering of atoms of helium gas flowing through atomically flat, two-dimensional channels results in frictionless gas flow, which is much faster than expected assuming purely diffusive scattering.

    • A. Keerthi
    • , A. K. Geim
    •  & B. Radha

  • Letter |

    Quantum entanglement is demonstrated in a system of massive micromechanical oscillators coupled to a microwave-frequency electromagnetic cavity by driving the devices into a steady state that is entangled.

    • C. F. Ockeloen-Korppi
    • , E. Damskägg
    •  & M. A. Sillanpää

  • Letter |

    Ohmic losses in plasmonic devices can be reduced by exploiting ‘resonant switching’, in which light couples to surface plasmon polaritons only when in resonance and bypasses them otherwise.

    • Christian Haffner
    • , Daniel Chelladurai
    •  & Juerg Leuthold

  • Article |

    Group III/nitride semiconductors have been grown epitaxially on the superconductor niobium nitride, allowing the superconductor’s macroscopic quantum effects to be combined with the semiconductors’ electronic, photonic and piezoelectric properties.

    • Rusen Yan
    • , Guru Khalsa
    •  & Debdeep Jena

  • Letter |

    A two-qubit quantum processor in a silicon device is demonstrated, which can perform the Deutsch–Josza algorithm and the Grover search algorithm.

    • T. F. Watson
    • , S. G. J. Philips
    •  & L. M. K. Vandersypen

  • Article |

    A single spin in silicon is strongly coupled to a microwave-frequency photon and coherent single-spin dynamics are observed using circuit quantum electrodynamics.

    • X. Mi
    • , M. Benito
    •  & J. R. Petta

  • Letter |

    All necessary strands for DNA origami can be created in a single scalable process by using bacteriophages to generate single-stranded precursor DNA containing the target sequences interleaved with self-excising DNA enzymes.

    • Florian Praetorius
    • , Benjamin Kick
    •  & Hendrik Dietz

  • Letter |

    A picobalance consisting of an optically excited microcantilever has been developed and used to measure the masses of individual healthy and virus-infected cells at high temporal and mass resolutions in culture conditions.

    • David Martínez-Martín
    • , Gotthold Fläschner
    •  & Daniel J. Müller

  • Letter |

    Rotary molecular machines, activated by ultraviolet light, are able to perturb and drill into cell membranes in a controllable manner, and more efficiently than those exhibiting flip-flopping or random motion.

    • Víctor García-López
    • , Fang Chen
    •  & James M. Tour

  • Letter |

    A relaxation oscillator incorporating nanoscale niobium dioxide memristors that exhibit both a current- and a temperature-controlled negative differential resistance produces chaotic dynamics that aid biomimetic computing.

    • Suhas Kumar
    • , John Paul Strachan
    •  & R. Stanley Williams

  • Letter |

    Spoken-digit recognition using a nanoscale spintronic oscillator that mimics the behaviour of neurons demonstrates the potential of such oscillators for realizing large-scale neural networks in future hardware.

    • Jacob Torrejon
    • , Mathieu Riou
    •  & Julie Grollier

  • Letter |

    A two-bit magnetic memory is demonstrated, based on the magnetic states of individual holmium atoms, which are read and written in a scanning tunnelling microscope set-up and are stable over many hours.

    • Fabian D. Natterer
    • , Kai Yang
    •  & Christopher P. Lutz

  • Letter |

    The pressure-driven flow rate through individual carbon nanotubes is precisely determined from the hydrodynamics of emerging water jets, revealing unexpectedly large and radius-dependent surface slippage.

    • Eleonora Secchi
    • , Sophie Marbach
    •  & Lydéric Bocquet

  • Letter |

    A device consisting of a metallic island connected to electrodes via tunable semiconductor-based conduction channels is used to explore the evolution of charge quantization in the presence of quantum fluctuations; the measurements reveal a robust scaling of charge quantization as the square root of the residual electron reflection probability across a quantum channel, consistent with theoretical predictions.

    • S. Jezouin
    • , Z. Iftikhar
    •  & F. Pierre

  • Letter |

    Blue energy is a desirable renewable resource, involving the osmotic transport of ions through a membrane from seawater to fresh water; here, nanopores have been created in two-dimensional molybdenum-disulfide membranes, and shown to generate a substantial osmotic power output.

    • Jiandong Feng
    • , Michael Graf
    •  & Aleksandra Radenovic

  • Letter |

    Placing a light emitter in an ultra-small optical cavity results in coupling between matter and light, generating new forms of emission that can be exploited in practical or fundamental applications; here, a system is described in which strong light–matter coupling occurs at room temperature and in ambient conditions by aligning single dye molecules in the optical cavities between gold nanoparticles and surfaces.

    • Rohit Chikkaraddy
    • , Bart de Nijs
    •  & Jeremy J. Baumberg

  • Letter |

    A system is described in which a small macrocycle is continuously transported directionally around a cyclic molecular track when powered by irreversible reactions of a chemical fuel; such autonomous chemically fuelled molecular motors should find application as engines in molecular nanotechnology.

    • Miriam R. Wilson
    • , Jordi Solà
    •  & David A. Leigh

  • Letter |

    A high-fidelity two-qubit CNOT logic gate is presented, which is realized by combining single- and two-qubit operations with controlled phase operations in a quantum dot system using the exchange interaction.

    • M. Veldhorst
    • , C. H. Yang
    •  & A. S. Dzurak

  • Letter |

    A new type of device, the band-to-band tunnel transistor, which has atomically thin molybdenum disulfide as the active channel, operates in a fundamentally different way from a conventional silicon (MOSFET) transistor; it has turn-on characteristics and low-power operation that are better than those of state-of-the-art MOSFETs or any tunnelling transistor reported so far.

    • Deblina Sarkar
    • , Xuejun Xie
    •  & Kaustav Banerjee

  • Letter |

    A position sensor is demonstrated that is capable of resolving the zero-point motion of a nanomechanical oscillator in the timescale of its thermal decoherence; it achieves an imprecision that is four orders of magnitude below that at the standard quantum limit and is used to feedback-cool the oscillator to a mean photon number of five.

    • D. J. Wilson
    • , V. Sudhir
    •  & T. J. Kippenberg

  • Letter |

    The ratio of in-plane stiffness to out-of-plane bending stiffness of graphene is shown to be similar to that of a piece of paper, which allows ideas from kirigami (a variation of origami that allows cutting) to be applied to micrometre-scale graphene sheets to build mechanically stretchable yet robust electrodes, springs and hinges.

    • Melina K. Blees
    • , Arthur W. Barnard
    •  & Paul L. McEuen

  • Letter |

    Visible-frequency hyperbolic metasurfaces defined on single-crystal silver exhibit negative refraction and diffraction-free propagation, as well as strong, dispersion-dependent spin–orbit coupling for propagating surface plasmon polaritons, with device performance greatly exceeding those of previous bulk metamaterial demonstrations.

    • Alexander A. High
    • , Robert C. Devlin
    •  & Hongkun Park

  • Letter |

    Evidence is presented for electron pairing in strontium titanate far above the superconducting transition temperature; such pairs are thought to be the long-sought pre-formed pairs that condense at lower temperatures to give rise to the unconventional superconducting state in this system.

    • Guanglei Cheng
    • , Michelle Tomczyk
    •  & Jeremy Levy

  • Letter |

    A transistor-free metal-oxide memristor crossbar with low device variability is realised and trained to perform a simple classification task, opening the way to integrated neuromorphic networks of a complexity comparable to that of the human brain, with high operational speed and manageable power dissipation.

    • M. Prezioso
    • , F. Merrikh-Bayat
    •  & D. B. Strukov

  • Letter |

    A miniature laser is reported that uses two-dimensional tungsten diselenide as the active medium, which is placed on a photonic crystal membrane that acts as the laser cavity; the laser emits visible light, with an ultralow pump threshold.

    • Sanfeng Wu
    • , Sonia Buckley
    •  & Xiaodong Xu

  • Letter |

    A mechanical crack-based sensor inspired by the mechanism spiders use to sense minute variations in stress offers ultrahigh sensitivity to pressure and vibration and can easily be mounted on human skin for the purposes of speech recognition and the monitoring of physiological signals.

    • Daeshik Kang
    • , Peter V. Pikhitsa
    •  & Mansoo Choi

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