Electronic properties and materials articles within Nature Communications

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  • Article
    | Open Access

    Reconfigurable neuromorphic transistors are important for creating compact and efficient neuromorphic computing networks. Here, Li et al. introduce an optoelectronic electrolyte-gated transistor to perform multimodal recognition.

    • Pengzhan Li
    • , Mingzhen Zhang
    •  & Chen Ge

  • Article
    | Open Access

    Bernal-stacked bilayer graphene (BLG) has been extensively studied due to its tunable band gap and emerging electronic properties, but its low-energy band structure remains debated. Here, the authors report magnetotransport measurements of Bernal BLG, showing evidence of four Dirac cones and electrically induced topological transitions.

    • Anna M. Seiler
    • , Nils Jacobsen
    •  & R. Thomas Weitz

  • Article
    | Open Access

    Superconductors with hexagonal symmetry are expected to be isotropic particularly near the critical temperature Tc, a property called emergent rotational symmetry (ERS). Here, the authors use calorimetry to study the hexagonal kagome superconductor CsV3Sb5 and find a violation of the expected ERS, hinting at realization of exotic superconductivity.

    • Kazumi Fukushima
    • , Keito Obata
    •  & Shingo Yonezawa

  • Article
    | Open Access

    Guo et al. report enhanced emission and photoconductivity in 2D Ruddlesden-Popper perovskites by synergistically tuning the intra and interlayer structure via pressure. A structure descriptor considering both intra- and interlayer is then introduced for screening perovskite with desired properties.

    • Songhao Guo
    • , Willa Mihalyi-Koch
    •  & Xujie Lü

  • Article
    | Open Access

    Optical control is an alternative pathway to boost nonlinear transport in noncentrosymmetric systems. Here, the authors observe a light-induced giant enhancement of nonreciprocal transport coefficient as high as 105 A−1 T−1 at KTaO3-based Rashba interfaces.

    • Xu Zhang
    • , Tongshuai Zhu
    •  & Xuefeng Wang

  • Article
    | Open Access

    The authors demonstrate that the band structure of graphene nanoribbons is modulated by cove edges, brightening the luminescence 4-fold via emission from otherwise dark twilight states. High spectral resolution of the optical response reveals strong vibron-electron coupling

    • Bernd K. Sturdza
    • , Fanmiao Kong
    •  & Robin J. Nicholas

  • Article
    | Open Access

    SrIrO3-based catalyst is a promising candidate for acidic oxygen evolution reaction (OER), but the active sites and factors responsible for its effectiveness remain ambiguous. Here, the authors reveal that dynamic dissolution of Co in Co-SrIrO3 leads to the formation of unsaturated IrOx, enabling high-efficiency OER.

    • Jia-Wei Zhao
    • , Kaihang Yue
    •  & Gao-Ren Li

  • Article
    | Open Access

    Ultrafast demagnetization refers to the process where an intense optical drive can destroy the magnetic order in a magnetic material on a femto-second timescale. Here, Wu et al resolve a three-stage ultrafast demagnetization process in a monolayer of Fe3GeTe2.

    • Na Wu
    • , Shengjie Zhang
    •  & Sheng Meng

  • Article
    | Open Access

    The microscopic structure of quantum defects in 2D materials is crucial to understand their optical properties and spin-photon interface. Here, the authors report the direct imaging of charge state-dependent symmetry breaking of sulfur vacancies and rhenium dopants in 2D MoS2, showing evidence of a Jahn-Teller effect.

    • Feifei Xiang
    • , Lysander Huberich
    •  & Bruno Schuler

  • Article
    | Open Access

    Rhombohedral multilayer graphene has emerged as an exciting solid-state platform for studying correlated electron physics. Here, the authors demonstrate field-tunable layer-polarized ferromagnetism and isolated surface flat bands engineered with a moiré potential.

    • Wenqiang Zhou
    • , Jing Ding
    •  & Shuigang Xu

  • Article
    | Open Access

    Electron–phonon interactions are a crucial aspect of high-quality graphene devices. Here, the authors show that graphene resistivity grows strongly in the direction of the carrier flow when the drift velocity exceeds the speed of sound due to the electrical amplification of acoustic terahertz phonons.

    • Aaron H. Barajas-Aguilar
    • , Jasen Zion
    •  & Javier D. Sanchez-Yamagishi

  • Article
    | Open Access

    The interplay between electron-phonon and spin-orbit interactions has led to the concept of a spin-orbit polaron. Here the authors show that such a regime is realized in a spin-orbit-coupled Mott insulator, leading to a new polaron quasiparticle, and study its effect on the Mott metal-insulator transition.

    • Lorenzo Celiberti
    • , Dario Fiore Mosca
    •  & Cesare Franchini

  • Article
    | Open Access

    Some materials host multiple charge density wave states, however, their dynamics and the nature of phase transitions are often unclear. Here, using temperature and orientation resolved ultrafast spectroscopy, the authors reveal charge density waves of different dimensionality in CuTe and elucidate their mechanism.

    • Nguyen Nhat Quyen
    • , Wen-Yen Tzeng
    •  & Chih-Wei Luo

  • Article
    | Open Access

    The authors theoretically propose a simple microscopic mechanism for light-induced superconductivity based on a boson coupled to an electronic interband transition. The electron-electron attraction needed for the superconductivity can be resonantly amplified when the boson’s frequency is close to the energy difference between the two electronic bands. The model can be engineered using a 2D heterostructure.

    • Christian J. Eckhardt
    • , Sambuddha Chattopadhyay
    •  & Marios H. Michael

  • Article
    | Open Access

    Van Hove singularities (VHS) are believed to exist in one and two dimensions, but rarely found in three dimensions (3D). Here the authors report the discovery of 3D VHS in a topological magnet EuCd2As2 by magneto-infrared spectroscopy.

    • Wenbin Wu
    • , Zeping Shi
    •  & Xiang Yuan

  • Article
    | Open Access

    R. Khasanov et al. report thermodynamic and muon-spin-rotation measurements on the Mo5Si3−xPx superconducting family. They find that a flat band reaches the Fermi level at x ≃ 1.3, leading to enhancement of electronic correlations and an abrupt change of the superconducting properties.

    • Rustem Khasanov
    • , Bin-Bin Ruan
    •  & Zurab Guguchia

  • Article
    | Open Access

    The fundamental hallmark of altermagnetism lies in the spin splitting of electronic valence bands. Here, the authors observe splitting in metallic CrSb, revealing an exceptionally large value and energetic placement just below the Fermi energy.

    • Sonka Reimers
    • , Lukas Odenbreit
    •  & Martin Jourdan

  • Article
    | Open Access

    The bulk photovoltaic effect and DC photocurrent generation can be used to detect topology and geometry in non-centrosymmetric quantum materials. Here, the authors theoretically propose the detection of DC shot noise as a diagnostic tool for the characterization of the band quantum geometry under relaxed symmetry conditions.

    • Longjun Xiang
    • , Hao Jin
    •  & Jian Wang

  • Article
    | Open Access

    Discovery of 2D materials with useful electronic properties is challenging. Here, the authors use DFT to design a stable semiconducting 2D carbon allotrope for optoelectronic applications that has light charge carriers and unusual secondary bandgap.

    • Zhenzhe Zhang
    • , Hanh D. M. Pham
    •  & Rustam Z. Khaliullin

  • Article
    | Open Access

    FeGe is a Kagome metal that exhibits a very rich array of magnetic and electronic phases. Here, using neutron scattering, Chen et al add to this zoo, by showing the emergence of a spin density wave order.

    • Lebing Chen
    • , Xiaokun Teng
    •  & Pengcheng Dai

  • Article
    | Open Access

    Understanding excitonic optical excitations is integral to improving optoelectronic and photovoltaic semiconductor devices. Here, Bennecke et al. use photoemission exciton tomography to unravel the multiorbital electron and hole contributions of entangled excitonic states in the prototypical organic semiconductor C60.

    • Wiebke Bennecke
    • , Andreas Windischbacher
    •  & Stefan Mathias

  • Article
    | Open Access

    An altermagnet has highly anisotropic spin splitting but zero net magnetization. Here, S.-B. Zhang et al. theoretically study the behavior of s-wave superconductor/altermagnet hybrid structures, finding that Cooper pairs in the proximitized altermagnet have an anisotropic non-zero momentum.

    • Song-Bo Zhang
    • , Lun-Hui Hu
    •  & Titus Neupert

  • Article
    | Open Access

    Phase engineering of 2D transition metal dichalcogenides enables the investigation of emerging physical properties. Here, the authors report a phase selective in-plane heteroepitaxial method to grow semiconducting H-phase CrSe2 thin films from MoSe2 nanoribbons, showing Tomonaga-Luttinger liquid behaviour in the CrSe2 mirror twin boundaries.

    • Meizhuang Liu
    • , Jian Gou
    •  & Andrew T. S. Wee

  • Article
    | Open Access

    The mechanism of charge density wave order in V-based kagome metals has been debated. Here the authors use a range of experimental techniques combined with ab initio calculations to study the electronic structure and phonon modes of ScV6Sn6, revealing the dominant role of strong electron-phonon coupling.

    • Yong Hu
    • , Junzhang Ma
    •  & Ming Shi

  • Article
    | Open Access

    Certain delafossite materials are the most conductive oxides known, for poorly understood reasons. This work elucidates this finding by uncovering a sublattice purification mechanism that enables ultrapure conductive planes even in impure crystals.

    • Yi Zhang
    • , Fred Tutt
    •  & Chris Leighton

  • Article
    | Open Access

    Recent experiments reported the Kondo effect in 1H/1T dichalcogenide hetero-bilayers. Crippa et al. re-examine this interpretation using ab initio calculations and dynamical mean-field theory demonstrating strong charge transfer sensitive to the interlayer separation, indicative of a doped Mott insulator regime.

    • Lorenzo Crippa
    • , Hyeonhu Bae
    •  & Roser Valentí

  • Article
    | Open Access

    While the classification of single-particle topological phases has been established, recent efforts have been made to extend it to interacting limit. Here the authors present a classification of interacting topological systems in 2D based on the generalization of real space invariants.

    • Jonah Herzog-Arbeitman
    • , B. Andrei Bernevig
    •  & Zhi-Da Song

  • Article
    | Open Access

    Charge order has been typically reported in doped systems with high d-electron occupancy. Here the authors demonstrate a charge-ordered insulating state in a La-doped SrTiO3 epitaxial film which has the lowest d-electron occupancy and attribute it to surface distortion that favours electron-phonon coupling.

    • Kitae Eom
    • , Bongwook Chung
    •  & Jaichan Lee

  • Article
    | Open Access

    Blue phosphorene (BlueP) is a 2D phosphorus allotrope predicted to host Dirac fermions and other interesting electronic properties. Here, the authors report the growth of large-area BlueP films with ordered chiral nanostructures on Cu(111) substrates, expanding the range of its potential applications.

    • Ye-Heng Song
    • , M. U. Muzaffar
    •  & Zhenyu Zhang

  • Article
    | Open Access

    The apparent electronic confinement at nanographene boundaries in scanning tunneling microscopy/spectroscopy is often misinterpreted. Here, the authors explain this phenomenon in terms of the decay of frontier orbitals and confinement at the edges of graphene nanoribbons and pores in nanoporous graphene.

    • Ignacio Piquero-Zulaica
    • , Eduardo Corral-Rascón
    •  & Johannes V. Barth

  • Article
    | Open Access

    The Higgs mode in condensed matter physics refers to the oscillations of the amplitude of the order parameter, and single Higgs modes have been studies in various systems. Here the authors report real-space observation of two coupled Higgs modes in a 1D charge density wave phase of CuTe.

    • SeongJin Kwon
    • , Hyunjin Jung
    •  & Han Woong Yeom

  • Article
    | Open Access

    2D bilayers have recently attracted significant attention due to fundamental properties like interlayer excitons and interfacial ferroelectricity. Here, the authors report a density functional theory approach to identify 2586 stable homobilayer systems and calculate their stacking-dependent electronic, magnetic and vibrational properties.

    • Sahar Pakdel
    • , Asbjørn Rasmussen
    •  & Kristian S. Thygesen

  • Article
    | Open Access

    Hf0.5Zr0.5O2 ferroelectric capacitors undergo a continuous transition from a positive effective to a fully inverted negative piezoelectric coefficient d33 upon electrical cycling. With proper ac training, both the net effective and the local piezoresponses can be nullified while the polarization is kept fully switchable.

    • Haidong Lu
    • , Dong-Jik Kim
    •  & Catherine Dubourdieu

  • Article
    | Open Access

    P. Rout et al. study Josephson junctions where the weak link is WSe2-encapsulated bilayer graphene, which features helical edge modes. They argue that the supercurrent channels along opposite edges of the weak link are coupled by a circulating helical mode.

    • Prasanna Rout
    • , Nikos Papadopoulos
    •  & Srijit Goswami

  • Article
    | Open Access

    I. Silber et al. discover a two-fold symmetry of the superconducting upper critical field in hexagonal 4Hb-TaS2 just below Tc, a clear signature of nematic, two-component superconductivity. They further suggest a theoretical model that reconciles the nematic superconductivity with the previously-observed time-reversal-symmetry-breaking in this material.

    • I. Silber
    • , S. Mathimalar
    •  & Y. Dagan

  • Article
    | Open Access

    Photoinduced phase transitions occur in a variety of materials and allow for the optical control of the materials properties. Here, Herve et al present a streaming powder X-ray diffraction method allowing them to study the ultrafast photoinduced phase transition of Rb0.94Mn0.94Co0.06[Fe(CN)6]0.9 within thermal hysteresis.

    • Marius Hervé
    • , Gaël Privault
    •  & Eric Collet

  • Article
    | Open Access

    The use of NISQ devices for useful quantum simulations of materials and chemistry is still mainly limited by the necessary circuit depth. Here, the authors propose to combine classically-generated effective Hamiltonians, hybrid fermion-to-qubit mapping and circuit optimisations to bring this requirement closer to experimental feasibility.

    • Laura Clinton
    • , Toby Cubitt
    •  & Evan Sheridan

  • Article
    | Open Access

    Conventional deoxygenation methods typically result in inevitable trace oxygen residue in organic semiconductors. Here, Huang et al. reports a non-destructive soft-plasma treatment for deoxygenation and that removal of trace oxygen can be used to modulate p-type characteristics.

    • Yinan Huang
    • , Kunjie Wu
    •  & Wenping Hu

  • Article
    | Open Access

    3D higher-order topological insulators (HOTIs) exhibit 1D hinge states depending on extrinsic sample details, while intrinsic features of HOTIs remain unknown. Here, K.S. Lin et al. introduce the framework of spin-resolved topology to show that helical HOTIs can realize a doubled axion insulator phase with nontrivial partial axion angles.

    • Kuan-Sen Lin
    • , Giandomenico Palumbo
    •  & Barry Bradlyn

  • Article
    | Open Access

    SrCu2(BO3)2 realizes the Shastry-Sutherland model (SSM), a 2D frustrated dimer model. Here, via high-magnetic-field inelastic neutron scattering measurements and matrix-product-state calculations, Fogh et al. find evidence for Bose-Einstein condensation of S = 2 two-triplon bound states, which is a spin-nematic phase.

    • Ellen Fogh
    • , Mithilesh Nayak
    •  & Henrik M. Rønnow

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