Letters

  • Letter |

    Quantum-assisted de-trapping in tungsten leads to diffusion rates orders of magnitude higher than naive classical estimates suggest. This phenomenon may be generic to any crystalline material.

    • Kazuto Arakawa
    • , Mihai-Cosmin Marinica
    • , Steven Fitzgerald
    • , Laurent Proville
    • , Duc Nguyen-Manh
    • , Sergei L. Dudarev
    • , Pui-Wai Ma
    • , Thomas D. Swinburne
    • , Alexandra M. Goryaeva
    • , Tetsuya Yamada
    • , Takafumi Amino
    • , Shigeo Arai
    • , Yuta Yamamoto
    • , Kimitaka Higuchi
    • , Nobuo Tanaka
    • , Hidehiro Yasuda
    • , Tetsuya Yasuda
    •  & Hirotaro Mori
  • Letter |

    X-ray spectroscopy and density functional theory are used to show that the electronic structure of the parent compound of superconducting infinite-layer nickelates, while similar to the copper-based high-temperature superconductors, has significant differences.

    • M. Hepting
    • , D. Li
    • , C. J. Jia
    • , H. Lu
    • , E. Paris
    • , Y. Tseng
    • , X. Feng
    • , M. Osada
    • , E. Been
    • , Y. Hikita
    • , Y.-D. Chuang
    • , Z. Hussain
    • , K. J. Zhou
    • , A. Nag
    • , M. Garcia-Fernandez
    • , M. Rossi
    • , H. Y. Huang
    • , D. J. Huang
    • , Z. X. Shen
    • , T. Schmitt
    • , H. Y. Hwang
    • , B. Moritz
    • , J. Zaanen
    • , T. P. Devereaux
    •  & W. S. Lee
  • Letter |

    A large longitudinal resistance and zero Hall plateau—hallmarks of an axion insulator—are found in MnBi2Te4. Moreover, a moderate magnetic field drives a quantum phase transition to a Chern insulator phase with zero longitudinal resistance and quantized Hall resistance h/e2.

    • Chang Liu
    • , Yongchao Wang
    • , Hao Li
    • , Yang Wu
    • , Yaoxin Li
    • , Jiaheng Li
    • , Ke He
    • , Yong Xu
    • , Jinsong Zhang
    •  & Yayu Wang
  • Letter |

    Using core–shell particles represents an effective design strategy for improving the performance of noble metal catalysts, but their stabilities can suffer during reactions. Atomically thin Pt shells are shown to stabilize titanium tungsten carbide cores, even at highly oxidizing potentials.

    • Daniel Göhl
    • , Aaron Garg
    • , Paul Paciok
    • , Karl J. J. Mayrhofer
    • , Marc Heggen
    • , Yang Shao-Horn
    • , Rafal E. Dunin-Borkowski
    • , Yuriy Román-Leshkov
    •  & Marc Ledendecker
  • Letter |

    The ultrafast response of a pyroelectric sensor with near-infrared responsivity is demonstrated by combining a pyroelectric thermal detector with wavelength-selective nanoparticle absorbers.

    • Jon W. Stewart
    • , Jarrett H. Vella
    • , Wei Li
    • , Shanhui Fan
    •  & Maiken H. Mikkelsen
  • Letter |

    Platinum catalysts are widely used for oxygen reduction reactions in electrochemical devices but scalability is restricted by scarcity, cost and vulnerability to poisoning. Zirconium nitride nanoparticles now exhibit an oxygen reduction performance with similar activity to that of Pt on carbon.

    • Yao Yuan
    • , Jiacheng Wang
    • , Samira Adimi
    • , Hangjia Shen
    • , Tiju Thomas
    • , Ruguang Ma
    • , J. Paul Attfield
    •  & Minghui Yang
  • Letter |

    A remarkably low critical current is found to reorient the magnetic order in a magnetically intercalated transition metal dichalcogenide, suggesting this class of materials could form a basis for antiferromagnetic spintronics.

    • Nityan L. Nair
    • , Eran Maniv
    • , Caolan John
    • , Spencer Doyle
    • , J. Orenstein
    •  & James G. Analytis
  • Letter |

    Chiral electric and magnetic structures are observed at domain walls in thin films of the room-temperature multiferroic BiFeO3.

    • J.-Y. Chauleau
    • , T. Chirac
    • , S. Fusil
    • , V. Garcia
    • , W. Akhtar
    • , J. Tranchida
    • , P. Thibaudeau
    • , I. Gross
    • , C. Blouzon
    • , A. Finco
    • , M. Bibes
    • , B. Dkhil
    • , D. D. Khalyavin
    • , P. Manuel
    • , V. Jacques
    • , N. Jaouen
    •  & M. Viret
  • Letter |

    Pressure-induced changes in the magnetic order of atomically thin van der Waals crystals are revealed and attributed to changes in the stacking arrangement.

    • Tingxin Li
    • , Shengwei Jiang
    • , Nikhil Sivadas
    • , Zefang Wang
    • , Yang Xu
    • , Daniel Weber
    • , Joshua E. Goldberger
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Craig J. Fennie
    • , Kin Fai Mak
    •  & Jie Shan
  • Letter |

    Pressure-induced changes in the magnetic order of bilayer and trilayer van der Waals crystals are revealed and attributed to changes in the stacking arrangement.

    • Tiancheng Song
    • , Zaiyao Fei
    • , Matthew Yankowitz
    • , Zhong Lin
    • , Qianni Jiang
    • , Kyle Hwangbo
    • , Qi Zhang
    • , Bosong Sun
    • , Takashi Taniguchi
    • , Kenji Watanabe
    • , Michael A. McGuire
    • , David Graf
    • , Ting Cao
    • , Jiun-Haw Chu
    • , David H. Cobden
    • , Cory R. Dean
    • , Di Xiao
    •  & Xiaodong Xu
  • Letter |

    The kinetics and thermodynamics of the nucleation of magnetite crystals from primary particles are shown to be described by colloidal assembly theory, allowing for predictions of crystal sizes to be made.

    • Giulia Mirabello
    • , Alessandro Ianiro
    • , Paul H. H. Bomans
    • , Takuto Yoda
    • , Atsushi Arakaki
    • , Heiner Friedrich
    • , Gijsbertus de With
    •  & Nico A. J. M. Sommerdijk
  • Letter |

    Zeolites are industrially useful catalysts, but their synthesis is poorly understood and many predicted structures remain unsynthesized. Machine learning and graph theory are used respectively to mine the literature on zeolite transformations and to predict similar zeolite pairs that may easily be transformed into each other.

    • Daniel Schwalbe-Koda
    • , Zach Jensen
    • , Elsa Olivetti
    •  & Rafael Gómez-Bombarelli
  • Letter |

    Plasmonic array nanolasers with Yb3+/Er3+-co-doped upconverting nanoparticles exhibit directional single-mode emission, with ultra-stable output over hours and with ultralow-threshold under continuous-wave pumping.

    • Angel Fernandez-Bravo
    • , Danqing Wang
    • , Edward S. Barnard
    • , Ayelet Teitelboim
    • , Cheryl Tajon
    • , Jun Guan
    • , George C. Schatz
    • , Bruce E. Cohen
    • , Emory M. Chan
    • , P. James Schuck
    •  & Teri W. Odom
  • Letter |

    Water clusters induce hole traps in organic semiconductor thin films. Detrimental effects of hole and electron traps on charge transport can be avoided by using materials with ionization energy and electron affinity within an energy window of 2.4 eV.

    • Naresh B. Kotadiya
    • , Anirban Mondal
    • , Paul W. M. Blom
    • , Denis Andrienko
    •  & Gert-Jan A. H. Wetzelaer
  • Letter |

    Metallic transition metal dichalcogenides are promising catalysts for hydrogen evolution reactions but their performances are still lower than industrial Pt and Ir electrolysers. The metallic 2H phase of niobium disulfide now exhibits enhanced current densities versus a reversible hydrogen electrode.

    • Jieun Yang
    • , Abdul Rahman Mohmad
    • , Yan Wang
    • , Raymond Fullon
    • , Xiuju Song
    • , Fang Zhao
    • , Ibrahim Bozkurt
    • , Mathias Augustin
    • , Elton J. G. Santos
    • , Hyeon Suk Shin
    • , Wenjing Zhang
    • , Damien Voiry
    • , Hu Young Jeong
    •  & Manish Chhowalla
  • Letter |

    A magnetic texture is used to synthetically induce a large spin–orbit interaction in a carbon nanotube, and signatures of Majorana zero modes—promising for quantum computing applications—are observed.

    • M. M. Desjardins
    • , L. C. Contamin
    • , M. R. Delbecq
    • , M. C. Dartiailh
    • , L. E. Bruhat
    • , T. Cubaynes
    • , J. J. Viennot
    • , F. Mallet
    • , S. Rohart
    • , A. Thiaville
    • , A. Cottet
    •  & T. Kontos
  • Letter |

    Due to the crystal symmetry of single-layer transition metal dichalcogenides and the fact that the conduction and valence band edges are at the zone-edge K points, the 2p exciton states are split. A two-colour pump–probe scheme is used to drive the 1s–2p exciton transition, and then probe the changes in absorption near the spectral position of the 1s line to measure the splitting energy.

    • Chaw-Keong Yong
    • , M. Iqbal Bakti Utama
    • , Chin Shen Ong
    • , Ting Cao
    • , Emma C. Regan
    • , Jason Horng
    • , Yuxia Shen
    • , Hui Cai
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Sefaattin Tongay
    • , Hui Deng
    • , Alex Zettl
    • , Steven G. Louie
    •  & Feng Wang
  • Letter |

    Rewritable surface charge density gradients enable the direct, high-speed and long-distance transport of droplets on distinct surfaces without the need of additional energy input.

    • Qiangqiang Sun
    • , Dehui Wang
    • , Yanan Li
    • , Jiahui Zhang
    • , Shuji Ye
    • , Jiaxi Cui
    • , Longquan Chen
    • , Zuankai Wang
    • , Hans-Jürgen Butt
    • , Doris Vollmer
    •  & Xu Deng
  • Letter |

    A ferroelectric material is used to switch the uniaxial magnetic anisotropy of an antiferromagnet, with implications for antiferromagnetic spintronics.

    • Xianzhe Chen
    • , Xiaofeng Zhou
    • , Ran Cheng
    • , Cheng Song
    • , Jia Zhang
    • , Yichuan Wu
    • , You Ba
    • , Haobo Li
    • , Yiming Sun
    • , Yunfeng You
    • , Yonggang Zhao
    •  & Feng Pan
  • Letter |

    The instability of sulfide ions during water oxidation prevents simultaneous evolution of hydrogen and oxygen. An oxysulfide semiconductor photocatalyst, Y2Ti2O5S2, is shown to evolve H2 and O2 via a water-splitting reaction under visible-light irradiation.

    • Qian Wang
    • , Mamiko Nakabayashi
    • , Takashi Hisatomi
    • , Song Sun
    • , Seiji Akiyama
    • , Zheng Wang
    • , Zhenhua Pan
    • , Xiong Xiao
    • , Tomoaki Watanabe
    • , Taro Yamada
    • , Naoya Shibata
    • , Tsuyoshi Takata
    •  & Kazunari Domen
  • Letter |

    A composition gradient is found to provide the necessary structural inversion asymmetry for a bulk Dzyaloshinskii–Moriya interaction to manifest itself.

    • Duck-Ho Kim
    • , Mitsutaka Haruta
    • , Hye-Won Ko
    • , Gyungchoon Go
    • , Hyeon-Jong Park
    • , Tomoe Nishimura
    • , Dae-Yun Kim
    • , Takaya Okuno
    • , Yuushou Hirata
    • , Yasuhiro Futakawa
    • , Hiroki Yoshikawa
    • , Wooseung Ham
    • , Sanghoon Kim
    • , Hiroki Kurata
    • , Arata Tsukamoto
    • , Yoichi Shiota
    • , Takahiro Moriyama
    • , Sug-Bong Choe
    • , Kyung-Jin Lee
    •  & Teruo Ono
  • Letter |

    A fluxonium qubit is constructed out of granular aluminium, revealing its potential for superconducting quantum technologies.

    • Lukas Grünhaupt
    • , Martin Spiecker
    • , Daria Gusenkova
    • , Nataliya Maleeva
    • , Sebastian T. Skacel
    • , Ivan Takmakov
    • , Francesco Valenti
    • , Patrick Winkel
    • , Hannes Rotzinger
    • , Wolfgang Wernsdorfer
    • , Alexey V. Ustinov
    •  & Ioan M. Pop
  • Letter |

    Interfacial water structures in electric double layers under bias potentials can impact the electrochemical performance of electrodes. Two structural transitions of interfacial water at electrified Au single-crystal electrode surfaces have now been identified.

    • Chao-Yu Li
    • , Jia-Bo Le
    • , Yao-Hui Wang
    • , Shu Chen
    • , Zhi-Lin Yang
    • , Jian-Feng Li
    • , Jun Cheng
    •  & Zhong-Qun Tian
  • Letter |

    An investigation of the structural and transport properties of bilayer graphene as a function of the twist angle between the layers reveals atomic-scale reconstruction for twist angles smaller than a critical value.

    • Hyobin Yoo
    • , Rebecca Engelke
    • , Stephen Carr
    • , Shiang Fang
    • , Kuan Zhang
    • , Paul Cazeaux
    • , Suk Hyun Sung
    • , Robert Hovden
    • , Adam W. Tsen
    • , Takashi Taniguchi
    • , Kenji Watanabe
    • , Gyu-Chul Yi
    • , Miyoung Kim
    • , Mitchell Luskin
    • , Ellad B. Tadmor
    • , Efthimios Kaxiras
    •  & Philip Kim
  • Letter |

    Femtosecond pump–probe measurements of Coulomb correlations in WS2/WSe2 heterostructures reveal the interlayer exciton binding energy, determined from the 1s–2p resonance, as well as the dynamics of the conversion of intra- to interlayer excitons.

    • P. Merkl
    • , F. Mooshammer
    • , P. Steinleitner
    • , A. Girnghuber
    • , K.-Q. Lin
    • , P. Nagler
    • , J. Holler
    • , C. Schüller
    • , J. M. Lupton
    • , T. Korn
    • , S. Ovesen
    • , S. Brem
    • , E. Malic
    •  & R. Huber
  • Letter |

    Charge-transfer states with comparable recombination and charge-splitting rates are shown to be a key ingredient for donor–acceptor organic blends that perform well in both light-emitting and photovoltaic applications.

    • Sascha Ullbrich
    • , Johannes Benduhn
    • , Xiangkun Jia
    • , Vasileios C. Nikolis
    • , Kristofer Tvingstedt
    • , Fortunato Piersimoni
    • , Steffen Roland
    • , Yuan Liu
    • , Jinhan Wu
    • , Axel Fischer
    • , Dieter Neher
    • , Sebastian Reineke
    • , Donato Spoltore
    •  & Koen Vandewal
  • Letter |

    Molten salts are used as a reaction medium to protect carbide, nitride and boride powders from oxidation during high-temperature synthesis in air, thus avoiding the need to carry out these processes in a vacuum or inert environment.

    • Apurv Dash
    • , Robert Vaßen
    • , Olivier Guillon
    •  & Jesus Gonzalez-Julian
  • Letter |

    Resonant inelastic X-ray scattering at the 4d-edge reveals dispersive magnetic excitations in SrRu2O6, providing insight into the origin of its high Néel temperature.

    • H. Suzuki
    • , H. Gretarsson
    • , H. Ishikawa
    • , K. Ueda
    • , Z. Yang
    • , H. Liu
    • , H. Kim
    • , D. Kukusta
    • , A. Yaresko
    • , M. Minola
    • , J. A. Sears
    • , S. Francoual
    • , H.-C. Wille
    • , J. Nuss
    • , H. Takagi
    • , B. J. Kim
    • , G. Khaliullin
    • , H. Yavaş
    •  & B. Keimer
  • Letter |

    Facile absorption and desorption of hydrogen at palladium surfaces provides a way to define how metal–solute interactions impact properties relevant to energy storage, catalysis and sensing. In situ X-ray diffraction has now been used to track both hydrogen absorption and desorption in palladium nanocrystals.

    • Noah J. J. Johnson
    • , Brian Lam
    • , Benjamin P. MacLeod
    • , Rebecca S. Sherbo
    • , Marta Moreno-Gonzalez
    • , David K. Fork
    •  & Curtis P. Berlinguette
  • Letter |

    Confined exciton–polaritons in semiconductor-based quantum wells can give rise to correlations slightly below the level of classical coincidence counts under resonant excitation, such that single or few polariton excitations are sufficient to modify the statistics of the radiation going through the system.

    • Aymeric Delteil
    • , Thomas Fink
    • , Anne Schade
    • , Sven Höfling
    • , Christian Schneider
    •  & Ataç İmamoğlu
  • Letter |

    Two-photon correlation measurements in a resonantly excited fibre-cavity polariton system stay below the classical limit for zero time delay, suggesting quantum correlations between the polaritons.

    • Guillermo Muñoz-Matutano
    • , Andrew Wood
    • , Mattias Johnsson
    • , Xavier Vidal
    • , Ben Q. Baragiola
    • , Andreas Reinhard
    • , Aristide Lemaître
    • , Jacqueline Bloch
    • , Alberto Amo
    • , Gilles Nogues
    • , Benjamin Besga
    • , Maxime Richard
    •  & Thomas Volz
  • Letter |

    A second-order topological insulator in an acoustical metamaterial with a breathing kagome lattice, supporting one-dimensional edge states and zero-dimensional corner states is demonstrated.

    • Haoran Xue
    • , Yahui Yang
    • , Fei Gao
    • , Yidong Chong
    •  & Baile Zhang
  • Letter |

    A surface annealing method is used to access an insulating phase of Bi2Sr2CaCu2O8+x and unidirectional charge order is observed.

    • He Zhao
    • , Zheng Ren
    • , Bryan Rachmilowitz
    • , John Schneeloch
    • , Ruidan Zhong
    • , Genda Gu
    • , Ziqiang Wang
    •  & Ilija Zeljkovic
  • Letter |

    An ordered structure that has only translational periodicity in one direction— unlike the known solid categories of crystal, quasicrystal and amorphous— is discovered in MgO and Nd2O3 ceramics.

    • Deqiang Yin
    • , Chunlin Chen
    • , Mitsuhiro Saito
    • , Kazutoshi Inoue
    •  & Yuichi Ikuhara
  • Letter |

    Elastomer sheets with programmable air channel organization swiftly shape into complex three-dimensional structures upon the application of pressure.

    • Emmanuel Siéfert
    • , Etienne Reyssat
    • , José Bico
    •  & Benoît Roman
  • Letter |

    The Zika virus infects the central nervous system and results in severe brain malformation. An amphiphatic peptide is now shown to penetrate the blood–brain barrier, reducing viral loads due to its activity against Zika and other mosquito-borne viruses.

    • Joshua A. Jackman
    • , Vivian V. Costa
    • , Soohyun Park
    • , Ana Luiza C. V. Real
    • , Jae Hyeon Park
    • , Pablo L. Cardozo
    • , Abdul Rahim Ferhan
    • , Isabella G. Olmo
    • , Thaiane P. Moreira
    • , Jordana L. Bambirra
    • , Victoria F. Queiroz
    • , Celso M. Queiroz-Junior
    • , Giselle Foureaux
    • , Danielle G. Souza
    • , Fabiola M. Ribeiro
    • , Bo Kyeong Yoon
    • , Evelien Wynendaele
    • , Bart De Spiegeleer
    • , Mauro M. Teixeira
    •  & Nam-Joon Cho
  • Letter |

    Dense suspensions of hard particles readily display discontinuous shear thickening under shear but not reversible shear jamming. Here it is shown that the formation of interparticle hydrogen bonds is crucial for the shear jamming of these suspensions.

    • Nicole M. James
    • , Endao Han
    • , Ricardo Arturo Lopez de la Cruz
    • , Justin Jureller
    •  & Heinrich M. Jaeger
  • Letter |

    Metallic ferromagnetism is reported in an exfoliated monolayer of the van der Waals material Fe3GeTe2.

    • Zaiyao Fei
    • , Bevin Huang
    • , Paul Malinowski
    • , Wenbo Wang
    • , Tiancheng Song
    • , Joshua Sanchez
    • , Wang Yao
    • , Di Xiao
    • , Xiaoyang Zhu
    • , Andrew F. May
    • , Weida Wu
    • , David H. Cobden
    • , Jiun-Haw Chu
    •  & Xiaodong Xu
  • Letter |

    A thorough analysis of the optical and transport properties of several two-dimensional organic conductors and insulators with varying on-site correlation strengths and bandwidths led to a quantitative phase diagram for pristine Mott insulators.

    • A. Pustogow
    • , M. Bories
    • , A. Löhle
    • , R. Rösslhuber
    • , E. Zhukova
    • , B. Gorshunov
    • , S. Tomić
    • , J. A. Schlueter
    • , R. Hübner
    • , T. Hiramatsu
    • , Y. Yoshida
    • , G. Saito
    • , R. Kato
    • , T.-H. Lee
    • , V. Dobrosavljević
    • , S. Fratini
    •  & M. Dressel
  • Letter |

    Long coherence times in a subset of states that allows for transitions in both microwave and optical range have been reported using an isotopically purified 171Yb3+:Y2SiO5 crystal, rendering the system suitable for quantum information applications.

    • Antonio Ortu
    • , Alexey Tiranov
    • , Sacha Welinski
    • , Florian Fröwis
    • , Nicolas Gisin
    • , Alban Ferrier
    • , Philippe Goldner
    •  & Mikael Afzelius