Letters

  • Letter |

    Few-layer micas show proton permeation across the sheet, exceeding that of graphene and hBN by one to two orders of magnitude.

    • L. Mogg
    • , G.-P. Hao
    • , S. Zhang
    • , C. Bacaksiz
    • , Y.-C. Zou
    • , S. J. Haigh
    • , F. M. Peeters
    • , A. K. Geim
    •  & M. Lozada-Hidalgo
  • Letter |

    In situ investigation of a single nanowire/quantum dot heterojunction solar cell using a custom-designed photoelectric transmission electron microscope set-up reveals the possibility of achieving improved photovoltaic performance.

    • Hui Dong
    • , Feng Xu
    • , Ziqi Sun
    • , Xing Wu
    • , Qiubo Zhang
    • , Yusheng Zhai
    • , Xiao Dong Tan
    • , Longbing He
    • , Tao Xu
    • , Ze Zhang
    • , Xiangfeng Duan
    •  & Litao Sun
  • Letter |

    Controlled delivery of neuromodulators in the brain might improve the understanding of the molecular basis of behaviour. In this letter, magnetic liposomes injected in deep brain regions release small molecules under remote magnetic stimulation, activating specific neuronal circuits in freely moving mice.

    • Siyuan Rao
    • , Ritchie Chen
    • , Ava A. LaRocca
    • , Michael G. Christiansen
    • , Alexander W. Senko
    • , Cindy H. Shi
    • , Po-Han Chiang
    • , Georgios Varnavides
    • , Jian Xue
    • , Yang Zhou
    • , Seongjun Park
    • , Ruihua Ding
    • , Junsang Moon
    • , Guoping Feng
    •  & Polina Anikeeva
  • Letter |

    The Weyl semimetal WTe2 possesses strong spin–orbit coupling and time-reversal-protected spin polarization in surface and bulk states. In a WTe2/permalloy heterostructure, WTe2 can act as a spin current source that enables magnetization switching at low current densities.

    • Shuyuan Shi
    • , Shiheng Liang
    • , Zhifeng Zhu
    • , Kaiming Cai
    • , Shawn D. Pollard
    • , Yi Wang
    • , Junyong Wang
    • , Qisheng Wang
    • , Pan He
    • , Jiawei Yu
    • , Goki Eda
    • , Gengchiau Liang
    •  & Hyunsoo Yang
  • Letter |

    In a ferromagnetic layer, an electric current parallel to the magnetization generates opposite spin–orbit torques on the two surfaces of the magnetic film, which is attributed to the generation of spin currents with a spin polarization transverse to the magnetization within the ferromagnet.

    • Wenrui Wang
    • , Tao Wang
    • , Vivek P. Amin
    • , Yang Wang
    • , Anil Radhakrishnan
    • , Angie Davidson
    • , Shane R. Allen
    • , T. J. Silva
    • , Hendrik Ohldag
    • , Davor Balzar
    • , Barry L. Zink
    • , Paul M. Haney
    • , John Q. Xiao
    • , David G. Cahill
    • , Virginia O. Lorenz
    •  & Xin Fan
  • Letter |

    Random sequences of unitary gate operations on an exchange-only qubit encoded in three physical electron qubits are performed using only voltage pulses and exhibit an average total error of 0.35%, where half of the error originates from leakage out of the computational subspace caused by interactions with substrate nuclear spins.

    • Reed W. Andrews
    • , Cody Jones
    • , Matthew D. Reed
    • , Aaron M. Jones
    • , Sieu D. Ha
    • , Michael P. Jura
    • , Joseph Kerckhoff
    • , Mark Levendorf
    • , Seán Meenehan
    • , Seth T. Merkel
    • , Aaron Smith
    • , Bo Sun
    • , Aaron J. Weinstein
    • , Matthew T. Rakher
    • , Thaddeus D. Ladd
    •  & Matthew G. Borselli
  • Letter |

    The spin state of electrons in a double quantum dot in silicon is read in a single shot with 98% average fidelity within 6 μs by means of an on-chip superconducting resonator connected to two of the gates defining the double dot structure.

    • Guoji Zheng
    • , Nodar Samkharadze
    • , Marc L. Noordam
    • , Nima Kalhor
    • , Delphine Brousse
    • , Amir Sammak
    • , Giordano Scappucci
    •  & Lieven M. K. Vandersypen
  • Letter |

    An enhancement of 28.5 times beyond the blackbody radiation limit is demonstrated between two plates 110 nm apart in a chip-scale device.

    • John DeSutter
    • , Lei Tang
    •  & Mathieu Francoeur
  • Letter |

    Magneto-transport measurements on thin metallic crystals of the transition metal dichalcogenide PtSe2 show signatures of ferro- and antiferromagnetic order depending on the number of layers and first-principles calculations suggest Pt vacancies at the surface as a plausible cause.

    • Ahmet Avsar
    • , Alberto Ciarrocchi
    • , Michele Pizzochero
    • , Dmitrii Unuchek
    • , Oleg V. Yazyev
    •  & Andras Kis
  • Letter |

    Eutectic Ga-In droplets can be functionalized with various polymers and co-polymers using atom transfer radical polymerization. The droplets are ready for direct solution processing to form liquid-metal nanocomposites for potential applications in soft robotics.

    • Jiajun Yan
    • , Mohammad H. Malakooti
    • , Zhao Lu
    • , Zongyu Wang
    • , Navid Kazem
    • , Chengfeng Pan
    • , Michael R. Bockstaller
    • , Carmel Majidi
    •  & Krzysztof Matyjaszewski
  • Letter |

    Gate reflectometry on an ancillary dot coupled to an electron reservoir is used to read the spin of a qubit in a CMOS device in a single shot with an average fidelity above 98% within 0.5 ms.

    • Matias Urdampilleta
    • , David J. Niegemann
    • , Emmanuel Chanrion
    • , Baptiste Jadot
    • , Cameron Spence
    • , Pierre-André Mortemousque
    • , Christopher Bäuerle
    • , Louis Hutin
    • , Benoit Bertrand
    • , Sylvain Barraud
    • , Romain Maurand
    • , Marc Sanquer
    • , Xavier Jehl
    • , Silvano De Franceschi
    • , Maud Vinet
    •  & Tristan Meunier
  • Letter |

    Thermal diffusion of skyrmions in a non-flat energy landscape shows exponential temperature dependence and can be used for a reshuffler device with potential application in probabilistic computing.

    • Jakub Zázvorka
    • , Florian Jakobs
    • , Daniel Heinze
    • , Niklas Keil
    • , Sascha Kromin
    • , Samridh Jaiswal
    • , Kai Litzius
    • , Gerhard Jakob
    • , Peter Virnau
    • , Daniele Pinna
    • , Karin Everschor-Sitte
    • , Levente Rózsa
    • , Andreas Donges
    • , Ulrich Nowak
    •  & Mathias Kläui
  • Letter |

    While measurement of an electron spin commonly destroys it, the quantum non-demolition measurement implemented here for an electron spin qubit in a semiconductor quantum dot preserves the measured spin and allows for exponential suppression of readout errors by repeated measurements.

    • Takashi Nakajima
    • , Akito Noiri
    • , Jun Yoneda
    • , Matthieu R. Delbecq
    • , Peter Stano
    • , Tomohiro Otsuka
    • , Kenta Takeda
    • , Shinichi Amaha
    • , Giles Allison
    • , Kento Kawasaki
    • , Arne Ludwig
    • , Andreas D. Wieck
    • , Daniel Loss
    •  & Seigo Tarucha
  • Letter |

    Spin currents from an adjacent Pt layer can drive homochiral Néel domain walls in centrosymmetric rare-earth iron garnet films at more than 800 m s–1, taking advantage of the antiferromagnetic spin dynamics of the ferrimagnetic oxide.

    • Can Onur Avci
    • , Ethan Rosenberg
    • , Lucas Caretta
    • , Felix Büttner
    • , Maxwell Mann
    • , Colin Marcus
    • , David Bono
    • , Caroline A. Ross
    •  & Geoffrey S. D. Beach
  • Letter |

    MoS2 is shown to exhibit a stronger vdW interaction with graphite than with hexagon boron nitride, which is well described by Lifshitz theory and utilized to construct 2D heterostructures in a sophisticated way

    • Baowen Li
    • , Jun Yin
    • , Xiaofei Liu
    • , Hongrong Wu
    • , Jidong Li
    • , Xuemei Li
    •  & Wanlin Guo
  • Letter |

    Gate-tuning of a Fermi reservoir enables the deterministic loading of single electrons or holes into a localized quantum dot in a WSe2 monolayer and the observation of hybrid excitons originating from strong, spin-conserving tunnelling between the dot and the reservoir.

    • Mauro Brotons-Gisbert
    • , Artur Branny
    • , Santosh Kumar
    • , Raphaël Picard
    • , Raphaël Proux
    • , Mason Gray
    • , Kenneth S. Burch
    • , Kenji Watanabe
    • , Takashi Taniguchi
    •  & Brian D. Gerardot
  • Letter |

    Under the application of a magnetic field, the 2D electron gas in a gated MoS2 monolayer becomes spin-polarized, the Coulomb interaction probably being key to the symmetry breaking.

    • Jonas Gaël Roch
    • , Guillaume Froehlicher
    • , Nadine Leisgang
    • , Peter Makk
    • , Kenji Watanabe
    • , Takashi Taniguchi
    •  & Richard John Warburton
  • Letter |

    Instead of using capacitively coupled charge sensors, which imply additional complexity in the device architecture, radiofrequency reflectometry on the gate defining the quantum dot can read out the spin state of a double quantum dot in a single shot.

    • Anderson West
    • , Bas Hensen
    • , Alexis Jouan
    • , Tuomo Tanttu
    • , Chih-Hwan Yang
    • , Alessandro Rossi
    • , M. Fernando Gonzalez-Zalba
    • , Fay Hudson
    • , Andrea Morello
    • , David J. Reilly
    •  & Andrew S. Dzurak
  • Letter |

    While neutral-charge quantum dots in optically active WSe2 do not show spin-valley initialization, localized holes possess a net spin and their spin-valley state can be selected with the helicity of the laser excitation.

    • Xin Lu
    • , Xiaotong Chen
    • , Sudipta Dubey
    • , Qiang Yao
    • , Weijie Li
    • , Xingzhi Wang
    • , Qihua Xiong
    •  & Ajit Srivastava
  • Letter |

    Lanthanide-doped nanoparticles could be used as labels for the imaging of biomolecules, potentially leading to a multicolour modality in electron microscopy.

    • Maxim B. Prigozhin
    • , Peter C. Maurer
    • , Alexandra M. Courtis
    • , Nian Liu
    • , Michael D. Wisser
    • , Chris Siefe
    • , Bining Tian
    • , Emory Chan
    • , Guosheng Song
    • , Stefan Fischer
    • , Shaul Aloni
    • , D. Frank Ogletree
    • , Edward S. Barnard
    • , Lydia-Marie Joubert
    • , Jianghong Rao
    • , A. Paul Alivisatos
    • , Roger M. Macfarlane
    • , Bruce E. Cohen
    • , Yi Cui
    • , Jennifer A. Dionne
    •  & Steven Chu
  • Letter |

    A significant mobility increase in TMD-based field-effect transistors is achieved via engineering of nanometre-scale corrugations and crests in the dielectric substrate.

    • Tao Liu
    • , Song Liu
    • , Kun-Hua Tu
    • , Hennrik Schmidt
    • , Leiqiang Chu
    • , Du Xiang
    • , Jens Martin
    • , Goki Eda
    • , Caroline A. Ross
    •  & Slaven Garaj
  • Letter |

    Ballistic avalanche phenomena in vertical InSe/BP heterostructures enable the demonstration of high-performance avalanche photodetectors and impact ionization transistors.

    • Anyuan Gao
    • , Jiawei Lai
    • , Yaojia Wang
    • , Zhen Zhu
    • , Junwen Zeng
    • , Geliang Yu
    • , Naizhou Wang
    • , Wenchao Chen
    • , Tianjun Cao
    • , Weida Hu
    • , Dong Sun
    • , Xianhui Chen
    • , Feng Miao
    • , Yi Shi
    •  & Xiaomu Wang
  • Letter |

    A metalens array of GaN nanoantennas is used to make a full-colour achromatic light-field camera.

    • Ren Jie Lin
    • , Vin-Cent Su
    • , Shuming Wang
    • , Mu Ku Chen
    • , Tsung Lin Chung
    • , Yu Han Chen
    • , Hsin Yu Kuo
    • , Jia-Wern Chen
    • , Ji Chen
    • , Yi-Teng Huang
    • , Jung-Hsi Wang
    • , Cheng Hung Chu
    • , Pin Chieh Wu
    • , Tao Li
    • , Zhenlin Wang
    • , Shining Zhu
    •  & Din Ping Tsai
  • Letter |

    An antiferromagnetic memory with piezoelectric strain control can be operated in high magnetic fields and combines a small device footprint with low switching power.

    • Han Yan
    • , Zexin Feng
    • , Shunli Shang
    • , Xiaoning Wang
    • , Zexiang Hu
    • , Jinhua Wang
    • , Zengwei Zhu
    • , Hui Wang
    • , Zuhuang Chen
    • , Hui Hua
    • , Wenkuo Lu
    • , Jingmin Wang
    • , Peixin Qin
    • , Huixin Guo
    • , Xiaorong Zhou
    • , Zhaoguogang Leng
    • , Zikui Liu
    • , Chengbao Jiang
    • , Michael Coey
    •  & Zhiqi Liu
  • Letter |

    A graphene-based Josephson junction incorporated in a superconducting circuit forms a voltage-tunable transmon qubit that can be controlled coherently.

    • Joel I-Jan Wang
    • , Daniel Rodan-Legrain
    • , Landry Bretheau
    • , Daniel L. Campbell
    • , Bharath Kannan
    • , David Kim
    • , Morten Kjaergaard
    • , Philip Krantz
    • , Gabriel O. Samach
    • , Fei Yan
    • , Jonilyn L. Yoder
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Terry P. Orlando
    • , Simon Gustavsson
    • , Pablo Jarillo-Herrero
    •  & William D. Oliver
  • Letter |

    Ultrasoft nanomesh electronics enable monitoring of the field potential of cardiomyocytes without interference with their natural motion.

    • Sunghoon Lee
    • , Daisuke Sasaki
    • , Dongmin Kim
    • , Mami Mori
    • , Tomoyuki Yokota
    • , Hyunjae Lee
    • , Sungjun Park
    • , Kenjiro Fukuda
    • , Masaki Sekino
    • , Katsuhisa Matsuura
    • , Tatsuya Shimizu
    •  & Takao Someya
  • Letter |

    Electrical damage of insulating polypropylene can be healed by heating surface-functionalized iron oxide nanoparticles dispersed in the polymer with oscillating magnetic fields, which activates nanoparticle diffusion and local melting of the damaged regions.

    • Yang Yang
    • , Jinliang He
    • , Qi Li
    • , Lei Gao
    • , Jun Hu
    • , Rong Zeng
    • , Jian Qin
    • , Shan X. Wang
    •  & Qing Wang
  • Letter |

    Zigzag arrays of silicon nanoparticles show topologically protected third-harmonic generation at the nanoscale.

    • Sergey Kruk
    • , Alexander Poddubny
    • , Daria Smirnova
    • , Lei Wang
    • , Alexey Slobozhanyuk
    • , Alexander Shorokhov
    • , Ivan Kravchenko
    • , Barry Luther-Davies
    •  & Yuri Kivshar
  • Letter |

    A photocurrent enhancement at the charge neutrality point is observed in graphene when the Fermi level matches the Dirac point.

    • Qiong Ma
    • , Chun Hung Lui
    • , Justin C. W. Song
    • , Yuxuan Lin
    • , Jian Feng Kong
    • , Yuan Cao
    • , Thao H. Dinh
    • , Nityan L. Nair
    • , Wenjing Fang
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Su-Yang Xu
    • , Jing Kong
    • , Tomás Palacios
    • , Nuh Gedik
    • , Nathaniel M. Gabor
    •  & Pablo Jarillo-Herrero
  • Letter |

    The long-range magnetic order in an artificial crystal that exhibits emergent ferrotoroidicity on the mesoscale can be manipulated by an effective magnetic vortex field that is generated by a scanning process with a magnetic tip.

    • Jannis Lehmann
    • , Claire Donnelly
    • , Peter M. Derlet
    • , Laura J. Heyderman
    •  & Manfred Fiebig
  • Letter |

    Low-energy electron microscopy enables controlled synthesis and characterization of (large) single-crystal borophene on metal substrates.

    • Rongting Wu
    • , Ilya K. Drozdov
    • , Stephen Eltinge
    • , Percy Zahl
    • , Sohrab Ismail-Beigi
    • , Ivan Božović
    •  & Adrian Gozar
  • Letter |

    The nuclear spin of individual atoms is polarized by the tunnelling current from a scanning tunnelling microscope tip, enabling nuclear magnetic resonance to sense the local magnetic environment.

    • Kai Yang
    • , Philip Willke
    • , Yujeong Bae
    • , Alejandro Ferrón
    • , Jose L. Lado
    • , Arzhang Ardavan
    • , Joaquín Fernández-Rossier
    • , Andreas J. Heinrich
    •  & Christopher P. Lutz
  • Letter |

    A spin-polarized current responsible for the planar Hall effect and anisotropic magnetoresistance is found to generate large antidamping spin–orbit torque in normal metal/ferromagnet/normal metal trilayers.

    • Christopher Safranski
    • , Eric A. Montoya
    •  & Ilya N. Krivorotov
  • Letter |

    The release of nuclear-localizing gold species from intracellular gold nanorods may alter gene expression on interaction with the genomic DNA.

    • Diwei Ho
    • , Jessica A. Kretzmann
    • , Marck Norret
    • , Priyanka Toshniwal
    • , Jean-Pierre Veder
    • , Haibo Jiang
    • , Paul Guagliardo
    • , Alaa M. Munshi
    • , Reena Chawla
    • , Cameron W. Evans
    • , Tristan D. Clemons
    • , Michelle Nguyen
    • , Amy L. Kretzmann
    • , Amanda J. Blythe
    • , Martin Saunders
    • , Michael Archer
    • , Melinda Fitzgerald
    • , Jeffrey A. Keelan
    • , Charles S. Bond
    • , Matt R. Kilburn
    • , Laurence H. Hurley
    • , Nicole M. Smith
    •  & K. Swaminathan Iyer
  • Letter |

    The striped polarization domains in a BiFeO3/TbScO3 heterostructure induce alternating p- and n-type doping at the interface, giving rise to strongly anisotropic in-plane conductance.

    • Yi Zhang
    • , Haidong Lu
    • , Lin Xie
    • , Xingxu Yan
    • , Tula R. Paudel
    • , Jeongwoo Kim
    • , Xiaoxing Cheng
    • , Hui Wang
    • , Colin Heikes
    • , Linze Li
    • , Mingjie Xu
    • , Darrell G. Schlom
    • , Long-Qing Chen
    • , Ruqian Wu
    • , Evgeny Y. Tsymbal
    • , Alexei Gruverman
    •  & Xiaoqing Pan
  • Letter |

    Graphene mechanically controlled break junctions show room-temperature quantum interference effects as a function of sub-nanometre displacements.

    • Sabina Caneva
    • , Pascal Gehring
    • , Víctor M. García-Suárez
    • , Amador García-Fuente
    • , Davide Stefani
    • , Ignacio J. Olavarria-Contreras
    • , Jaime Ferrer
    • , Cees Dekker
    •  & Herre S. J. van der Zant