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| Open AccessA mechanically strong and ductile soft magnet with extremely low coercivity
An iron–cobalt–nickel–tantalum–aluminium multicomponent alloy with ferromagnetic matrix and paramagnetic coherent nanoparticles is described, showing high tensile strength and ductility, along with very low coercivity.
- Liuliu Han
- , Fernando Maccari
- & Dierk Raabe
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Article |
Perovskite superlattices with efficient carrier dynamics
Fabrication of a low-dimensional metal halide perovskite superlattice by chemical epitaxy is reported, with a criss-cross two-dimensional network parallel to the substrate, leading to efficient carrier transport in three dimensions.
- Yusheng Lei
- , Yuheng Li
- & Sheng Xu
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News & Views |
Twisted-graphene model draws inspiration from heavy elements
Electrons in a pure-carbon material display properties that are reminiscent of those in heavy-element compounds. A model inspired by this link hints at how a single-element material can exhibit complex electronic behaviour.
- Aline Ramires
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Article |
P-type electrical contacts for 2D transition-metal dichalcogenides
Clean van der Waals contacts of high-work-function metals have been demonstrated on few- and single-layered MoS2 and WSe2, leading to p-type characteristics on single-layer MoS2 and purely p-type characteristics on WSe2.
- Yan Wang
- , Jong Chan Kim
- & Manish Chhowalla
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Article |
Dislocation-induced stop-and-go kinetics of interfacial transformations
Environmental transmission electron microscopy is used to reveal that mismatch dislocations modulate the interfacial transformation of copper oxide to copper metal in an intermittent manner.
- Xianhu Sun
- , Dongxiang Wu
- & Guangwen Zhou
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Article |
Tracking single adatoms in liquid in a transmission electron microscope
The ability to resolve single atoms in a liquid environment is demonstrated by combining a transmission electron microscope and a robust double graphene liquid cell, enabling studies of adatom motion at solid–liquid interfaces.
- Nick Clark
- , Daniel J. Kelly
- & Sarah J. Haigh
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Technology Feature |
Light-based sensors set to revolutionize on-site testing
Nanophotonic biosensors exploit light’s properties to detect molecular interactions in real time at the point of need.
- Diana Kwon
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News |
Molecular motor is ‘DNA origami’ milestone
Rotating device driven by Brownian motion could pave the way for more advanced nanoscale machines.
- Davide Castelvecchi
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Article
| Open AccessHypocrystalline ceramic aerogels for thermal insulation at extreme conditions
Hypocrystalline ceramic aerogels with a zig-zag architecture show high thermal stability under thermal shock and exposure to high temperature, providing a reliable material system for thermal insulation at extreme conditions.
- Jingran Guo
- , Shubin Fu
- & Xiangfeng Duan
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Article |
Chiral molecular intercalation superlattices
By intercalating layered 2D atomic crystals with selected chiral molecules, a new class of chiral molecular intercalation superlattices is reported, demonstrating highly ordered structures and achieving high tunnelling magnetoresistance and spin polarization ratios.
- Qi Qian
- , Huaying Ren
- & Xiangfeng Duan
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Article |
Synthesis of a monolayer fullerene network
Using an interlayer bonding cleavage strategy, a two-dimensional monolayer fullerene network is prepared; its moderate bandgap makes it a potential candidate for use in two-dimensional electronic devices.
- Lingxiang Hou
- , Xueping Cui
- & Jian Zheng
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Article |
Epitaxial single-crystal hexagonal boron nitride multilayers on Ni (111)
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
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Article |
Electrically tunable quantum confinement of neutral excitons
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
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Article |
High-κ perovskite membranes as insulators for two-dimensional transistors
Single-crystalline perovskite membranes with an ultrahigh dielectric constant show potential as a gate dielectric for two-dimensional field-effect transistors.
- Jing-Kai Huang
- , Yi Wan
- & Sean Li
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Article |
Uniform nucleation and epitaxy of bilayer molybdenum disulfide on sapphire
The epitaxial growth of bilayer molybdenum disulfide on sapphire enables the fabrication of field-effect transistor devices with improved performance in carrier mobility and on-state current over traditional monolayer films.
- Lei Liu
- , Taotao Li
- & Xinran Wang
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Article |
Triplet fusion upconversion nanocapsules for volumetric 3D printing
. 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
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News & Views |
A detector that can learn the fingerprint of light
The polarization, wavelength and power of a light wave can be simultaneously identified by a compact device made from twisted layers of carbon atoms — with a little help from an artificial neural network.
- Justin C. W. Song
- & Yidong Chong
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Article |
Uniting tensile ductility with ultrahigh strength via composition undulation
A nanocrystalline metallic alloy with ultrahigh tensile strength and good ductility is achieved by introducing compositional undulation in a highly concentrated solid solution.
- Heng Li
- , Hongxiang Zong
- & Jun Sun
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Article |
Ultrathin ferroic HfO2–ZrO2 superlattice gate stack for advanced transistors
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
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Article |
Metastable hexagonal close-packed palladium hydride in liquid cell TEM
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
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Article |
Structure of the moiré exciton captured by imaging its electron and hole
Imaging the electron and hole that bind to form interlayer excitons in a 2D moiré material enables direct measurement of its diameter and indicates the localization of its centre of mass.
- Ouri Karni
- , Elyse Barré
- & Keshav M. Dani
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News & Views |
Isotopes tracked on a sub-nanometre scale using electron spectroscopy
Measurements of atomic vibrations can now identify chemical isotopes on a sub-nanometre scale in an electron microscope. An innovative approach makes use of this resolution to build and track isotopic domains.
- Jordan A. Hachtel
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Article |
Imaging of isotope diffusion using atomic-scale vibrational spectroscopy
Vibrational electron energy-loss spectroscopy is used to distinguish two stable isotopes of carbon and to monitor their diffusion with subnanometre spatial resolution.
- Ryosuke Senga
- , Yung-Chang Lin
- & Kazu Suenaga
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Article |
Free-standing homochiral 2D monolayers by exfoliation of molecular crystals
Sonication of layered metallacycle crystals gives free-standing nanosheets held together by weak non-covalent interactions, with chiral surfaces that show improved binding and enantiodiscrimination compared with individual metallacycle molecules.
- Jinqiao Dong
- , Lingmei Liu
- & Yong Cui
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Article |
Fluctuation-induced quantum friction in nanoscale water flows
The quantum contribution to friction enables the rationalization of the peculiar friction properties of water on carbon surfaces, and in particular the radius dependence of slippage in carbon nanotubes.
- Nikita Kavokine
- , Marie-Laure Bocquet
- & Lydéric Bocquet
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Review Article |
Reproducibility in the fabrication and physics of moiré materials
The essential properties of moiré materials and the progress and latest developments in the field are reviewed, and their fabrication and physics are discussed from a reproducibility perspective.
- Chun Ning Lau
- , Marc W. Bockrath
- & Fan Zhang
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Article |
Irreversible synthesis of an ultrastrong two-dimensional polymeric material
The solution-phase irreversible synthesis of a two-dimensional polymer with excellent elastic modulus and yield strength is reported.
- Yuwen Zeng
- , Pavlo Gordiichuk
- & Michael S. Strano
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News & Views |
Nanoparticle asymmetry shapes an immune response
The chirality, or handedness, of nanoparticles is shown to be a key factor in determining how well such particles engage with the immune system — a finding that might help to inform the design of vaccines and anticancer therapeutics.
- Alexander Hooftman
- & Luke A. J. O’Neill
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Article
| Open AccessChemical crystallography by serial femtosecond X-ray diffraction
Small-molecule serial femtosecond X-ray crystallography (smSFX) characterizes microcrystals by indexing sparse serial XFEL diffraction frames, with little sample preparation, without beam damage, and at room temperature and pressure.
- Elyse A. Schriber
- , Daniel W. Paley
- & J. Nathan Hohman
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News & Views |
Clever substitutions reveal magnetism in zigzag graphene nanoribbons
The inclusion of nitrogen atoms stabilizes the zigzag edges of carbon-based nanoribbons, enabling the ribbons to be decoupled from a substrate and providing a probe for their unconventional magnetism.
- Aran Garcia-Lekue
- & Daniel Sánchez-Portal
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Article |
Artificial heavy fermions in a van der Waals heterostructure
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
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Article |
Ultrahard bulk amorphous carbon from collapsed fullerene
Preparing amorphous phases of carbon with mostly sp3 bonding in bulk is challenging, but macroscopic samples that are nearly pure sp3 are synthesized here by heating fullerenes at high pressure.
- Yuchen Shang
- , Zhaodong Liu
- & Bingbing Liu
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Article |
Distribution control enables efficient reduced-dimensional perovskite LEDs
The efficiency and operating lifetimes of perovskite light-emitting diodes is improved by using a fluorinated triphenylphosphine oxide additive to control the cation diffusion during film deposition and passivate the surface.
- Dongxin Ma
- , Kebin Lin
- & Edward H. Sargent
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Article |
Approaching the intrinsic exciton physics limit in two-dimensional semiconductor diodes
Two-dimensional transition metal dichalcogenide diodes with defect-free van der Waals contacts allows minimization of the extrinsic interfacial disorder-dominated recombination and access to the intrinsic excitonic behaviour in two-dimensional semiconductor devices.
- Peng Chen
- , Timothy L. Atallah
- & Xiangfeng Duan
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Article |
Measuring phonon dispersion at an interface
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
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News & Views |
Untwisted trilayer graphene hosts superconductivity and magnetism
Superconductivity and magnetism have been observed in layered graphene in which the sheets are twisted with respect to each other. But a simpler, more stable graphene system also exhibits these phases.
- Thiti Taychatanapat
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Article |
Observation of fractional edge excitations in nanographene spin chains
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
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Article |
Mastering the surface strain of platinum catalysts for efficient electrocatalysis
By depositing platinum shells on palladium-based nanocubes, the strain can be controlled by through phosphorization and dephosphorization, making it possible to tune the electrocatalytic activity of the platinum shells.
- Tianou He
- , Weicong Wang
- & Mingshang Jin
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Article |
Colorimetric histology using plasmonically active microscope slides
Colour contrast is added to unstained histological samples by using surface plasmon polaritons whose properties depend on the sample’s dielectric constant.
- Eugeniu Balaur
- , Sandra O’ Toole
- & Brian Abbey
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Article
| Open AccessExtremely anisotropic van der Waals thermal conductors
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
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News & Views |
Hybrid light–matter states formed in self-assembling cavities
Tiny flakes of metal suspended in a solution have been observed to self-assemble into pairs separated by a narrow gap — offering a tunable system for studying combinations of light and matter known as polaritons.
- Johannes Feist
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Review Article |
Interface nano-optics with van der Waals polaritons
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
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Article |
Tunable self-assembled Casimir microcavities and polaritons
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
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Article |
Single-crystal, large-area, fold-free monolayer graphene
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
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Article |
Pseudogap in a crystalline insulator doped by disordered metals
A back-bending band structure and an emerging pseudogap are observed at the interface between a crystalline solid (black phosphorus) and disordered alkali-metal dopants.
- Sae Hee Ryu
- , Minjae Huh
- & Keun Su Kim
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Article |
Pauli-limit violation and re-entrant superconductivity in moiré graphene
A large violation of the Pauli limit and re-entrant superconductivity in a magnetic field is reported for magic-angle twisted trilayer graphene, suggesting that the spin configuration of the superconducting state of this material is unlikely to consist of spin singlets.
- Yuan Cao
- , Jeong Min Park
- & Pablo Jarillo-Herrero
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Article |
Layer Hall effect in a 2D topological axion antiferromagnet
A new type of Hall effect—the layer Hall effect—is produced in a 2D antiferromagnet that does not exhibit any net magnetization.
- Anyuan Gao
- , Yu-Fei Liu
- & Su-Yang Xu
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Article |
Bilayer Wigner crystals in a transition metal dichalcogenide heterostructure
Optical signatures reveal correlated insulating Wigner crystals—electron solids—in a bilayer of a two-dimensional transition metal dichalcogenide, MoSe2, with hexagonal boron nitride between the layers.
- You Zhou
- , Jiho Sung
- & Hongkun Park
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Perspective |
The rise of intelligent matter
Inanimate matter is beginning to show some signs of basic intelligence—the ability to sense, actuate and use memory, as controlled by an internal communication network in functional materials.
- C. Kaspar
- , B. J. Ravoo
- & W. H. P. Pernice
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