Letters

  • Letter |

    Both extrinsic and intrinsic factors determine the properties of ferroic materials and are difficult to disentangle. This study on artificial crystals of planar nanomagnets with well-defined, tuneable magnetic interactions unveils the intrinsic correlations between microscopic interactions and macroscopic properties such as the domain size and morphology or the domain-wall mobility.

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

    The internal surface of an optical fibre can be covered by uniform two-dimensional-material layers for highly nonlinear and low-loss light propagation.

    • Yonggang Zuo
    • , Wentao Yu
    • , Can Liu
    • , Xu Cheng
    • , Ruixi Qiao
    • , Jing Liang
    • , Xu Zhou
    • , Jinhuan Wang
    • , Muhong Wu
    • , Yun Zhao
    • , Peng Gao
    • , Shiwei Wu
    • , Zhipei Sun
    • , Kaihui Liu
    • , Xuedong Bai
    •  & Zhongfan Liu
  • Letter |

    Measurements of electrical conductance in double-stranded DNA suggest that the backbones mediate the long-distance conduction in dsDNA, contrary to the common wisdom in DNA electronics.

    • Roman Zhuravel
    • , Haichao Huang
    • , Georgia Polycarpou
    • , Savvas Polydorides
    • , Phani Motamarri
    • , Liat Katrivas
    • , Dvir Rotem
    • , Joseph Sperling
    • , Linda A. Zotti
    • , Alexander B. Kotlyar
    • , Juan Carlos Cuevas
    • , Vikram Gavini
    • , Spiros S. Skourtis
    •  & Danny Porath
  • Letter |

    Interlayer excitons in bilayer MoS2 exhibit both a high oscillator strength and highly tunable energies in an applied electric field.

    • Nadine Leisgang
    • , Shivangi Shree
    • , Ioannis Paradisanos
    • , Lukas Sponfeldner
    • , Cedric Robert
    • , Delphine Lagarde
    • , Andrea Balocchi
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Xavier Marie
    • , Richard J. Warburton
    • , Iann C. Gerber
    •  & Bernhard Urbaszek
  • Letter |

    The strength of the plasmonic field between a plasmonic particle and a Au surface can be measured at ~2-Å resolution by following the Raman peaks of a suitably labelled self-assembly monolayer.

    • Chao-Yu Li
    • , Sai Duan
    • , Bao-Ying Wen
    • , Song-Bo Li
    • , Murugavel Kathiresan
    • , Li-Qiang Xie
    • , Shu Chen
    • , Jason R. Anema
    • , Bing-Wei Mao
    • , Yi Luo
    • , Zhong-Qun Tian
    •  & Jian-Feng Li
  • Letter |

    Spillover hydrogenation is facet specific and occurs on atomically dispersed Pd catalyst on Cu(100). Knowing this, cost-effective catalysts with extremely low Pd loading are fabricated that successfully catalyse the semi-hydrogenation of a broad range of alkynes with high activity and selectivity.

    • Lizhi Jiang
    • , Kunlong Liu
    • , Sung-Fu Hung
    • , Lingyun Zhou
    • , Ruixuan Qin
    • , Qinghua Zhang
    • , Pengxin Liu
    • , Lin Gu
    • , Hao Ming Chen
    • , Gang Fu
    •  & Nanfeng Zheng
  • Letter |

    A MoS2 transistor with chiral nanocrescent plasmonic antennae enables the generation, propagation, detection and manipulation of valley information at room temperature.

    • Lingfei Li
    • , Lei Shao
    • , Xiaowei Liu
    • , Anyuan Gao
    • , Hao Wang
    • , Binjie Zheng
    • , Guozhi Hou
    • , Khurram Shehzad
    • , Linwei Yu
    • , Feng Miao
    • , Yi Shi
    • , Yang Xu
    •  & Xiaomu Wang
  • Letter |

    Domain-resolved spectroscopy reveals the impact of local atomic registry and crystal symmetry on the exciton properties of individual domains in near-0°-twist-angle MoSe2/MoSe2.

    • Jiho Sung
    • , You Zhou
    • , Giovanni Scuri
    • , Viktor Zólyomi
    • , Trond I. Andersen
    • , Hyobin Yoo
    • , Dominik S. Wild
    • , Andrew Y. Joe
    • , Ryan J. Gelly
    • , Hoseok Heo
    • , Samuel J. Magorrian
    • , Damien Bérubé
    • , Andrés M. Mier Valdivia
    • , Takashi Taniguchi
    • , Kenji Watanabe
    • , Mikhail D. Lukin
    • , Philip Kim
    • , Vladimir I. Fal’ko
    •  & Hongkun Park
  • Letter |

    The quantum anomalous Hall state is characterized by a dissipationless chiral edge current. When slightly carrier-doped, Cr-doped (Bi,Sb)2Te3, a magnetic topological insulator, shows current-direction-dependent resistance with a directional difference up to 26%, which probably originates from scattering between the chiral edge state and the Dirac surface state.

    • Kenji Yasuda
    • , Takahiro Morimoto
    • , Ryutaro Yoshimi
    • , Masataka Mogi
    • , Atsushi Tsukazaki
    • , Minoru Kawamura
    • , Kei S. Takahashi
    • , Masashi Kawasaki
    • , Naoto Nagaosa
    •  & Yoshinori Tokura
  • Letter |

    Compressibility measurements on high-quality monolayer WSe2 samples enable the observation of fractional quantum Hall states in the lowest Landau levels.

    • Qianhui Shi
    • , En-Min Shih
    • , Martin V. Gustafsson
    • , Daniel A. Rhodes
    • , Bumho Kim
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Zlatko Papić
    • , James Hone
    •  & Cory R. Dean
  • Letter |

    A solution-based ligand-exchange strategy enables the realization of close-packed quantum dot solid films with near-unity photoluminescence quantum yield and high charge carrier mobility.

    • Yitong Dong
    • , Ya-Kun Wang
    • , Fanglong Yuan
    • , Andrew Johnston
    • , Yuan Liu
    • , Dongxin Ma
    • , Min-Jae Choi
    • , Bin Chen
    • , Mahshid Chekini
    • , Se-Woong Baek
    • , Laxmi Kishore Sagar
    • , James Fan
    • , Yi Hou
    • , Mingjian Wu
    • , Seungjin Lee
    • , Bin Sun
    • , Sjoerd Hoogland
    • , Rafael Quintero-Bermudez
    • , Hinako Ebe
    • , Petar Todorovic
    • , Filip Dinic
    • , Peicheng Li
    • , Hao Ting Kung
    • , Makhsud I. Saidaminov
    • , Eugenia Kumacheva
    • , Erdmann Spiecker
    • , Liang-Sheng Liao
    • , Oleksandr Voznyy
    • , Zheng-Hong Lu
    •  & Edward H. Sargent
  • Letter |

    An electromechanical response to an out-of-plane electric field in van der Waals heterostructures enables direct visualization of moiré superlattices using piezoresponse force microscopy.

    • Leo J. McGilly
    • , Alexander Kerelsky
    • , Nathan R. Finney
    • , Konstantin Shapovalov
    • , En-Min Shih
    • , Augusto Ghiotto
    • , Yihang Zeng
    • , Samuel L. Moore
    • , Wenjing Wu
    • , Yusong Bai
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Massimiliano Stengel
    • , Lin Zhou
    • , James Hone
    • , Xiaoyang Zhu
    • , Dmitri N. Basov
    • , Cory Dean
    • , Cyrus E. Dreyer
    •  & Abhay N. Pasupathy
  • Letter |

    Tuning a flexoelectric polarization field in centrosymmetric semiconductor single crystals enables the observation of a giant flexoelectronic effect.

    • Longfei Wang
    • , Shuhai Liu
    • , Xiaolong Feng
    • , Chunli Zhang
    • , Laipan Zhu
    • , Junyi Zhai
    • , Yong Qin
    •  & Zhong Lin Wang
  • Letter |

    The accumulation of nanoplastics in terrestrial plants is directly linked to the nanoparticles’ charge and can have ecological effects and implications for agricultural sustainability and food safety.

    • Xiao-Dong Sun
    • , Xian-Zheng Yuan
    • , Yuebin Jia
    • , Li-Juan Feng
    • , Fan-Ping Zhu
    • , Shang-Shang Dong
    • , Jiajia Liu
    • , Xiangpei Kong
    • , Huiyu Tian
    • , Jian-Lu Duan
    • , Zhaojun Ding
    • , Shu-Guang Wang
    •  & Baoshan Xing
  • Letter |

    A phase battery is a quantum device that provides a persistent phase bias to the wave function of a quantum circuit. A hybrid superconducting and magnetic circuit containing two anomalous Josephson junctions can provide a tunable Josephson phase that persists in the absence of external stimuli.

    • Elia Strambini
    • , Andrea Iorio
    • , Ofelia Durante
    • , Roberta Citro
    • , Cristina Sanz-Fernández
    • , Claudio Guarcello
    • , Ilya V. Tokatly
    • , Alessandro Braggio
    • , Mirko Rocci
    • , Nadia Ligato
    • , Valentina Zannier
    • , Lucia Sorba
    • , F. Sebastián Bergeret
    •  & Francesco Giazotto
  • Letter |

    In a radiative Auger process, an excited electron relaxes by concomitant emission of a redshifted photon and energy transfer to another electron. Measuring radiative Auger processes in a quantum dot with single-photon resolution enables determination of the energy of single-electron levels as well as their lifetimes.

    • Matthias C. Löbl
    • , Clemens Spinnler
    • , Alisa Javadi
    • , Liang Zhai
    • , Giang N. Nguyen
    • , Julian Ritzmann
    • , Leonardo Midolo
    • , Peter Lodahl
    • , Andreas D. Wieck
    • , Arne Ludwig
    •  & Richard J. Warburton
  • Letter |

    Alloying conduction channels of a Si memristor enables stable and controllable device operation with high switching uniformity.

    • Hanwool Yeon
    • , Peng Lin
    • , Chanyeol Choi
    • , Scott H. Tan
    • , Yongmo Park
    • , Doyoon Lee
    • , Jaeyong Lee
    • , Feng Xu
    • , Bin Gao
    • , Huaqiang Wu
    • , He Qian
    • , Yifan Nie
    • , Seyoung Kim
    •  & Jeehwan Kim
  • Letter |

    Easy-plane antiferromagnet materials promise low-energy control of ultrafast magnetic dynamics in future spintronics applications, but host magnons with vanishing angular momentum, which makes spin transport via magnons unlikely. Through interference of two linearly polarized propagating magnons, spin transport over micrometre distances is yet possible.

    • Jiahao Han
    • , Pengxiang Zhang
    • , Zhen Bi
    • , Yabin Fan
    • , Taqiyyah S. Safi
    • , Junxiang Xiang
    • , Joseph Finley
    • , Liang Fu
    • , Ran Cheng
    •  & Luqiao Liu
  • Letter |

    The controlled creation of magnetic skyrmions is a prerequisite for their application in future spintronic devices. While charge currents can induce skyrmions via spin torque, surface acoustic waves can do the same through magnetoelastic coupling of inhomogeneous strain paired with thermal fluctuations.

    • Tomoyuki Yokouchi
    • , Satoshi Sugimoto
    • , Bivas Rana
    • , Shinichiro Seki
    • , Naoki Ogawa
    • , Shinya Kasai
    •  & Yoshichika Otani
  • Letter |

    Phage capsids modified with spatially defined patterns of host cell ligands can act as multivalent binders for the influenza A virus to prevent viral infection.

    • Daniel Lauster
    • , Simon Klenk
    • , Kai Ludwig
    • , Saba Nojoumi
    • , Sandra Behren
    • , Lutz Adam
    • , Marlena Stadtmüller
    • , Sandra Saenger
    • , Stephanie Zimmler
    • , Katja Hönzke
    • , Ling Yao
    • , Ute Hoffmann
    • , Markus Bardua
    • , Alf Hamann
    • , Martin Witzenrath
    • , Leif E. Sander
    • , Thorsten Wolff
    • , Andreas C. Hocke
    • , Stefan Hippenstiel
    • , Sacha De Carlo
    • , Jens Neudecker
    • , Klaus Osterrieder
    • , Nediljko Budisa
    • , Roland R. Netz
    • , Christoph Böttcher
    • , Susanne Liese
    • , Andreas Herrmann
    •  & Christian P. R. Hackenberger
  • Letter |

    Knowledge and control of the dynamic response in micromagnetic configurations is important both for understanding their fundamental properties and for their use in technological applications. Pump–probe magnetic laminography now unveils the evolution of the magnetization in a three-dimensional system with nanoscale resolution.

    • Claire Donnelly
    • , Simone Finizio
    • , Sebastian Gliga
    • , Mirko Holler
    • , Aleš Hrabec
    • , Michal Odstrčil
    • , Sina Mayr
    • , Valerio Scagnoli
    • , Laura J. Heyderman
    • , Manuel Guizar-Sicairos
    •  & Jörg Raabe
  • Letter |

    The spontaneous relaxation of misfit strain achieved on graphene-coated substrates enables the growth of heteroepitaxial single-crystalline films with reduced dislocation density.

    • Sang-Hoon Bae
    • , Kuangye Lu
    • , Yimo Han
    • , Sungkyu Kim
    • , Kuan Qiao
    • , Chanyeol Choi
    • , Yifan Nie
    • , Hyunseok Kim
    • , Hyun S. Kum
    • , Peng Chen
    • , Wei Kong
    • , Beom-Seok Kang
    • , Chansoo Kim
    • , Jaeyong Lee
    • , Yongmin Baek
    • , Jaewoo Shim
    • , Jinhee Park
    • , Minho Joo
    • , David A. Muller
    • , Kyusang Lee
    •  & Jeehwan Kim
  • Letter |

    Gauge fields in condensed matter give rise to nonreciprocal transport and topological non-trivial states. In an on-chip experiment, multi-mode optomechanical interactions generate a magnetic gauge field for nanomechanical motion and yield phonon transport with a nonreciprocal phase.

    • John P. Mathew
    • , Javier del Pino
    •  & Ewold Verhagen
  • Letter |

    Controlling the individual layer magnetization in CrI3 enables the observation of a layer-resolved magnetic proximity effect in WSe2/CrI3 heterostructures.

    • Ding Zhong
    • , Kyle L. Seyler
    • , Xiayu Linpeng
    • , Nathan P. Wilson
    • , Takashi Taniguchi
    • , Kenji Watanabe
    • , Michael A. McGuire
    • , Kai-Mei C. Fu
    • , Di Xiao
    • , Wang Yao
    •  & Xiaodong Xu
  • Letter |

    A double-buffer-layer engineering strategy enables the selective growth of magnetic materials at specific locations on a wide variety of semiconducting nanorods.

    • Tao-Tao Zhuang
    • , Yi Li
    • , Xiaoqing Gao
    • , Mingyang Wei
    • , F. Pelayo García de Arquer
    • , Petar Todorović
    • , Jie Tian
    • , Gongpu Li
    • , Chong Zhang
    • , Xiyan Li
    • , Liang Dong
    • , Yonghong Song
    • , Yang Lu
    • , Xuekang Yang
    • , Libing Zhang
    • , Fengjia Fan
    • , Shana O. Kelley
    • , Shu-Hong Yu
    • , Zhiyong Tang
    •  & Edward H. Sargent
  • Letter |

    Skyrmions and antiskyrmions are nanometric spin whirls with opposite topological charges. In the Heusler magnet Mn1.4Pt0.9Pd0.1Sn, modulations of the orientation and strength of an in-plane magnetic field induces the transformation from antiskyrmions to non-topological bubbles and skyrmions.

    • Licong Peng
    • , Rina Takagi
    • , Wataru Koshibae
    • , Kiyou Shibata
    • , Kiyomi Nakajima
    • , Taka-hisa Arima
    • , Naoto Nagaosa
    • , Shinichiro Seki
    • , Xiuzhen Yu
    •  & Yoshinori Tokura
  • Letter |

    Tautomerization, the interconversion between two constitutional isomers of a molecule, plays a major role in chemistry. The combination of hyper-resolved fluorescence microscopy with time-correlated measurements and spectral selection enables the identification and in-depth characterization of a tautomerization reaction within a single molecular switch.

    • Benjamin Doppagne
    • , Tomáš Neuman
    • , Ruben Soria-Martinez
    • , Luis E. Parra López
    • , Hervé Bulou
    • , Michelangelo Romeo
    • , Stéphane Berciaud
    • , Fabrice Scheurer
    • , Javier Aizpurua
    •  & Guillaume Schull
  • Letter |

    Adoptive transfer of macrophages, transfected with vitamin C lipid nanoparticles that deliver an antimicrobial peptide and cathepsin B mRNA, can be applied for the treatment of multidrug-resistant bacteria-induced sepsis in mice.

    • Xucheng Hou
    • , Xinfu Zhang
    • , Weiyu Zhao
    • , Chunxi Zeng
    • , Binbin Deng
    • , David W. McComb
    • , Shi Du
    • , Chengxiang Zhang
    • , Wenqing Li
    •  & Yizhou Dong
  • Letter |

    Lithium whisker growth and mechanical properties can be studied in situ using a combination of two microscopies.

    • Liqiang Zhang
    • , Tingting Yang
    • , Congcong Du
    • , Qiunan Liu
    • , Yushu Tang
    • , Jun Zhao
    • , Baolin Wang
    • , Tianwu Chen
    • , Yong Sun
    • , Peng Jia
    • , Hui Li
    • , Lin Geng
    • , Jingzhao Chen
    • , Hongjun Ye
    • , Zaifa Wang
    • , Yanshuai Li
    • , Haiming Sun
    • , Xiaomei Li
    • , Qiushi Dai
    • , Yongfu Tang
    • , Qiuming Peng
    • , Tongde Shen
    • , Sulin Zhang
    • , Ting Zhu
    •  & Jianyu Huang
  • Letter |

    Spin-crossover complexes often lose their functionality upon adsorption on metal surfaces. Here, a metal–organic complex adsorbed on a silver surface undergoes reversible interlocked spin and coordination switching, which is enabled by an intramolecular feedback mechanism controlling the position of an axial ligand strapped to the complex.

    • Alexander Köbke
    • , Florian Gutzeit
    • , Fynn Röhricht
    • , Alexander Schlimm
    • , Jan Grunwald
    • , Felix Tuczek
    • , Michał Studniarek
    • , Danilo Longo
    • , Fadi Choueikani
    • , Edwige Otero
    • , Philippe Ohresser
    • , Sebastian Rohlf
    • , Sven Johannsen
    • , Florian Diekmann
    • , Kai Rossnagel
    • , Alexander Weismann
    • , Torben Jasper-Toennies
    • , Christian Näther
    • , Rainer Herges
    • , Richard Berndt
    •  & Manuel Gruber
  • Letter |

    Topological frustration in the π-electron network of the polycyclic aromatic hydrocarbon C38H18 yields unpaired electrons and a magnetically non-trivial ground state. Here, the authors synthesize this molecule, known as Clar’s goblet, on Au(111) and characterize the antiferromagnetic ground state with scanning tunnelling microscopy.

    • Shantanu Mishra
    • , Doreen Beyer
    • , Kristjan Eimre
    • , Shawulienu Kezilebieke
    • , Reinhard Berger
    • , Oliver Gröning
    • , Carlo A. Pignedoli
    • , Klaus Müllen
    • , Peter Liljeroth
    • , Pascal Ruffieux
    • , Xinliang Feng
    •  & Roman Fasel
  • Letter |

    PEDOT nanodisks show near-infrared plasmonic resonances that can be reversibly switched by chemical redox reactions.

    • Shangzhi Chen
    • , Evan S. H. Kang
    • , Mina Shiran Chaharsoughi
    • , Vallery Stanishev
    • , Philipp Kühne
    • , Hengda Sun
    • , Chuanfei Wang
    • , Mats Fahlman
    • , Simone Fabiano
    • , Vanya Darakchieva
    •  & Magnus P. Jonsson
  • Letter |

    Nuclear spins are excellent qubits, but long-range interactions are difficult to establish. Here, the authors couple a 29Si nuclear spin to electrons in a lithographically defined quantum dot and show initialization, readout and entanglement with the electron spin. The 29Si retains its coherence under electron transfer between quantum dots.

    • Bas Hensen
    • , Wister Wei Huang
    • , Chih-Hwan Yang
    • , Kok Wai Chan
    • , Jun Yoneda
    • , Tuomo Tanttu
    • , Fay E. Hudson
    • , Arne Laucht
    • , Kohei M. Itoh
    • , Thaddeus D. Ladd
    • , Andrea Morello
    •  & Andrew S. Dzurak
  • Letter |

    Synthesis of MoS2 on a silicon surface pre-treated with phosphine enables the growth of one-dimensional MoS2 nanocrystals with tunable dimensions and optical properties.

    • Tomojit Chowdhury
    • , Jungkil Kim
    • , Erick C. Sadler
    • , Chenyang Li
    • , Seong Won Lee
    • , Kiyoung Jo
    • , Weinan Xu
    • , David H. Gracias
    • , Natalia V. Drichko
    • , Deep Jariwala
    • , Todd H. Brintlinger
    • , Tim Mueller
    • , Hong-Gyu Park
    •  & Thomas J. Kempa
  • Letter |

    The internal electron dynamics of submicrometre devices are hard to resolve because of bandwidth limitations of current measurement techniques. Here, the authors sample the 250 GHz coherent oscillation of a single-electron wave packet inside a quantum dot at 4.2 K employing a resonant level.

    • Gento Yamahata
    • , Sungguen Ryu
    • , Nathan Johnson
    • , H.-S. Sim
    • , Akira Fujiwara
    •  & Masaya Kataoka
  • Letter |

    Coupling the emission of upconversion nanoparticles to gap plasmon modes enables a direct observation of upconversion superburst with directional, fast and ultrabright luminescence.

    • Yiming Wu
    • , Jiahui Xu
    • , Eng Tuan Poh
    • , Liangliang Liang
    • , Hailong Liu
    • , Joel K. W. Yang
    • , Cheng-Wei Qiu
    • , Renaud A. L. Vallée
    •  & Xiaogang Liu
  • Letter |

    Engineering the interlayer coupling in a van der Waals heterostructure enables electrical control over the transport and density of valley-polarized interlayer excitons.

    • Dmitrii Unuchek
    • , Alberto Ciarrocchi
    • , Ahmet Avsar
    • , Zhe Sun
    • , Kenji Watanabe
    • , Takashi Taniguchi
    •  & Andras Kis
  • Letter |

    Mechanically and electronically stable graphene/molecule/graphene devices can be fabricated by combining a covalent binding of the molecules to the substrate with an optimized intermolecular ππ interaction.

    • Maria El Abbassi
    • , Sara Sangtarash
    • , Xunshan Liu
    • , Mickael Lucien Perrin
    • , Oliver Braun
    • , Colin Lambert
    • , Herre Sjoerd Jan van der Zant
    • , Shlomo Yitzchaik
    • , Silvio Decurtins
    • , Shi-Xia Liu
    • , Hatef Sadeghi
    •  & Michel Calame
  • Letter |

    All-electrical switching of magnetization holds promise for applications in information technologies with low power consumption. Here, current-induced spin–orbit torque switches the magnetization in SrIrO3/SrRuO3 bilayer structures at 70 K in the absence of an external magnetic field.

    • Liang Liu
    • , Qing Qin
    • , Weinan Lin
    • , Changjian Li
    • , Qidong Xie
    • , Shikun He
    • , Xinyu Shu
    • , Chenghang Zhou
    • , Zhishiuh Lim
    • , Jihang Yu
    • , Wenlai Lu
    • , Mengsha Li
    • , Xiaobing Yan
    • , Stephen J. Pennycook
    •  & Jingsheng Chen