Electronic properties and materials articles within Nature Communications

Featured

  • Article
    | Open Access

    The authors present resonant inelastic x-ray scattering measurements of Sr2RuO4 in the normal Fermi-liquid state. They find that spin excitations are confined below 200 meV, while orbital fluctuations appear only at higher energies. This separation of energy scales is a hallmark of Hund’s-rule-induced electron correlations.

    • H. Suzuki
    • , L. Wang
    •  & B. Keimer
  • Article
    | Open Access

    Recently, a Luttinger liquid state was reported in a moiré superlattice of bilayer tungsten ditelluride at small twist angles and temperatures of a few kelvins. Here, the authors extend this result to millikelvin temperatures, supporting the existence of the 2D anisotropic Luttinger liquid as a stable ground state.

    • Guo Yu
    • , Pengjie Wang
    •  & Sanfeng Wu
  • Article
    | Open Access

    Recently the Kondo effect has been observed in transition metal dichalcogenide heterobilayers, but the evidence for low-temperature coherent state has been missing. Wan et al. observe signatures of such state in the form of a split Kondo peak with a characteristic magnetic-field dependence by STM at 340 mK.

    • Wen Wan
    • , Rishav Harsh
    •  & Miguel M. Ugeda
  • Article
    | Open Access

    Many-body localization is observed in synthetic systems, but experiments on real materials with Coulomb interactions are vital for insights in higher dimensions. Stanley et al. report a prethermal regime in the dynamics of a 2D disordered electron system in Si MOSFETs and explore the effects of interaction range.

    • L. J. Stanley
    • , Ping V. Lin
    •  & Dragana Popović
  • Article
    | Open Access

    Down-scaled ferroelectricity normally diminishes due to the arising depolarization field. Here, the authors realize a 0D ferroelectric diode device taking advantage of the sliding at the van der Waals interface by the two crossed tungsten disulfide nanotubes.

    • Yue Niu
    • , Lei Li
    •  & Yao Guo
  • Article
    | Open Access

    There is an urgent need to develop coatings with good neutron-absorption capacity and workability. Here the authors addressed these challenges by developing a scalable and solution processable two-dimensional Ti3C2Tx MXene hybrid film with homogeneously distributed B4C particles.

    • Ju-Hyoung Han
    • , Shi-Hyun Seok
    •  & Soon-Yong Kwon
  • Article
    | Open Access

    Deconvoluting and quantitating ligand effect from the typical strain-ligand effects in a real catalytic structure remains challenging. Here, the authors report a core/shell catalyst model to quantitate how much ligand effect solely contributes to electrocatalytic performance through experimental design.

    • Lu Tao
    • , Kai Wang
    •  & Shaojun Guo
  • Article
    | Open Access

    The authors study conductance replicas emerging under microwave irradiation in the tunnelling spectrum of Josephson junctions in InAs/Al heterostructures, focusing on distinguishing the signatures of Floquet-Andreev states (FASs) from those of photon-assisted tunneling (PAT). They establish that PAT largely dominates the response to microwave radiation in their device.

    • Daniel Z. Haxell
    • , Marco Coraiola
    •  & Fabrizio Nichele
  • Article
    | Open Access

    Half-Heusler alloys containing rare earth ions have attracted interest due to combination of band-inversion and magnetism. Ueda et al study less studied trivial semiconductor HoAuSn, and show that it undergoes a magnetic field induced transition to a Weyl semimetal state, with a large reduction in the resistance.

    • Kentaro Ueda
    • , Tonghua Yu
    •  & Yoshinori Tokura
  • Article
    | Open Access

    The metal-insulator transition in VO2 is concomitant with the structural transition, making purely electrical control challenging. Here the authors use a modulation-doped heterostructure to demonstrate modulation of the transition temperature with doping, without introducing structural changes.

    • Debasish Mondal
    • , Smruti Rekha Mahapatra
    •  & Naga Phani B. Aetukuri
  • Article
    | Open Access

    The Kagome lattice consists of equilateral triangles occupying each edge of a hexagon, resembling a star with six-fold rotation symmetry. Here, using scanning tunnelling microscopy, Zhang et al observe the breaking of this six-fold rotation symmetry in the Kagome lattice plane of the planar antiferromagnet, FeSn.

    • Huimin Zhang
    • , Basu Dev Oli
    •  & Lian Li
  • Article
    | Open Access

    The interplay between magnetism and charge density wave in the kagome magnet FeGe is under debate. By using elastic and inelastic X-ray scattering, angle-resolved photoemission spectroscopy, and first principles calculations, Miao et al. propose that the charge density wave is stabilized by spin-phonon coupling.

    • H. Miao
    • , T. T. Zhang
    •  & H. N. Lee
  • Article
    | Open Access

    Ca3Ru2O7 is a layered ruthenate, which undergoes a spin-reorientation transition where the spins rotate 90 degrees between two anti-ferromagnetic states. Despite extensive study, the driver of this transition has proved elusive. Here, using neutron and resonant x-ray scattering, Dashwood et al. show that this transition is driven by lattice strain.

    • C. D. Dashwood
    • , A. H. Walker
    •  & D. F. McMorrow
  • Article
    | Open Access

    The non-Hermitian skin effect, or localization of eigenstates at the boundary of a non-Hermitian system, has been intensively studied. Chu et al. observe a large and wide edge supercurrent in the Dirac semimetal Cd3As2-based Josephson junctions, which is consistent with the non-Hermitian skin effect.

    • Chun-Guang Chu
    • , Jing-Jing Chen
    •  & Zhi-Min Liao
  • Article
    | Open Access

    Physical realizations of time crystals, non-equilibrium many-body systems with broken time-translation symmetry, typically require periodic driving. Here the authors demonstrate a time crystal without external periodic drive in a collection of erbium atoms under a continuous laser excitation.

    • Yu-Hui Chen
    •  & Xiangdong Zhang
  • Article
    | Open Access

    By combining graphene with transition metal dichalcogenides, such as WSe2, it is possible to induce a large spin-orbit interaction in the graphene layer. Here, Rao et al study the spin-orbit coupling in graphene/WSe2 heterostructures using the ballistic transport based technique, known transverse magnetic focusing.

    • Qing Rao
    • , Wun-Hao Kang
    •  & Dong-Keun Ki
  • Article
    | Open Access

    Phase transitions in charge density wave materials could be useful for memory and electronic device applications. Here, the authors correlate the temperature-driven transitions in the electrical and optical properties of H-TaS2/1T-TaS2 heterostructures to the number of endotaxial metallic H-TaS2 monolayers.

    • Samra Husremović
    • , Berit H. Goodge
    •  & D. Kwabena Bediako
  • Article
    | Open Access

    The understanding of quantum effects in electronic crystallization is limited. Murase et al. report spatio-temporal dynamics in an organic material, with distinct nucleation and growth signatures, demonstrating larger growth rates than in the classical case due to quantum nature of electrons.

    • Hideaki Murase
    • , Shunto Arai
    •  & Kazushi Kanoda
  • Article
    | Open Access

    Electronic bandwidth modulation by static pressure has been explored in several material families. Wang et al. use temperature-dependent Raman spectroscopy and density functional theory to reveal phonon-driven modulation of electronic pseudogap and density wave fluctuations in a ruthenate Ca3Ru2O7.

    • Huaiyu (Hugo) Wang
    • , Yihuang Xiong
    •  & Venkatraman Gopalan
  • Article
    | Open Access

    Recent work has reported puzzling results on the surface of 1T-TaS2. Based on first-principles calculations, the authors show that charge density wave order undergoes surface reconstruction, leading to modifications in the surface electronic structure, which can explain recent experiments.

    • Sung-Hoon Lee
    •  & Doohee Cho
  • Article
    | Open Access

    Optical properties of organic semiconductors enable various optoelectronic applications. Müller et al. report a large exciton bandwidth in a crystalline organic material and attribute it to the strong Coulomb interaction in directed exciton pathways induced by the donor–acceptor type molecular structure.

    • Kai Müller
    • , Karl S. Schellhammer
    •  & Frank Ortmann
  • Article
    | Open Access

    Here, the authors theoretically predict the formation of synergistic correlated and topological states in Coulomb-coupled and gate-tunable graphene/insulator heterostructures, proposing a number of promising substrate candidates and a possible explanation for recent experimental observations in graphene/CrOCl heterostructures.

    • Xin Lu
    • , Shihao Zhang
    •  & Jianpeng Liu
  • Article
    | Open Access

    Recent experiments reported charge order with a stripe pattern in parent compounds of infinite-layer nickelate superconductors. Chen et al. use first principles and effective model calculations to propose an electronic, charge-transfer-driven mechanism of the charge order.

    • Hanghui Chen
    • , Yi-feng Yang
    •  & Hongquan Liu
  • Article
    | Open Access

    Over the last few years, several van der Waals materials have been found that retain magnetic ordering down to monolayer thickness. These materials provide a simple platform for studying the magnetism in reduced dimensions. Here, Zhong et al study the thickness dependence of magnetic ordering in Cr2Te3, and find a crossover from Stoner to Heisenberg-type magnetism as thicknesses are reduced.

    • Yong Zhong
    • , Cheng Peng
    •  & Zhi-Xun Shen
  • Article
    | Open Access

    A hidden effect can occur in materials where locally a symmetry is broken, even though global symmetry is preserved. An example is hidden spin-polarization, arising from local inversion symmetry breaking in otherwise globally centro-symmetric materials. Here, Yuan et al uncover a hidden spin-polarization that can occur in antiferromagnets without spin-orbit coupling and identify the key material requirements for this to occur.

    • Lin-Ding Yuan
    • , Xiuwen Zhang
    •  & Alex Zunger
  • Article
    | Open Access

    Dressing is a concept used to describe moderately interacting electrons. Here authors present the notion of dressed spin-orbit 3/2 moments and how this picture breaks down with increasing electronic interactions across group-5 lacunar spinel magnets.

    • Thorben Petersen
    • , Pritam Bhattacharyya
    •  & Liviu Hozoi
  • Article
    | Open Access

    Many proposed spintronic devices, where spin, rather than charge is used for information processing, rely on the combination of multiple materials, for example, heavy metals and magnetic materials in spin-orbit torque devices. Here, Gao et al. show how the interface between a ferromagnet and a semimetal, Ni81Fe19/Bi0.1Sb0.9, can result in a barrier-mediated spin-orbit torques

    • Tenghua Gao
    • , Alireza Qaiumzadeh
    •  & Kazuya Ando
  • Article
    | Open Access

    Soliton molecules have been observed only in the temporal dimension for classical wave optical systems. Here, the authors use scanning tunneling spectroscopy to identify a topological soliton molecule in real space in a quasi-1D charge-ordered phase of indium atomic wires.

    • Taehwan Im
    • , Sun Kyu Song
    •  & Han Woong Yeom
  • Article
    | Open Access

    In this work, authors report a transparent dynamic infrared emissivity modulation mechanism based on reversible injection/extraction of electrons in aluminium-doped zinc oxide nanocrystals and demonstrate it for smart thermal management applications.

    • Yan Jia
    • , Dongqing Liu
    •  & Tianwen Liu
  • Article
    | Open Access

    Molecular ferroelectrics contain stimuli-responsive structure and ionic building blocks, promising for ionically tailored multifunctionality. Here, the authors report molecular ionic ferroelectrics exhibiting the coexistence of room-temperature ionic conductivity and ferroelectricity.

    • Yulong Huang
    • , Jennifer L. Gottfried
    •  & Shenqiang Ren
  • Article
    | Open Access

    Twisted bilayer graphene hosts a sequence of electronic resets evidenced experimentally by characteristic spectroscopic cascades and sawtooth peaks in the inverse electronic compressibility. Here, the authors use combined dynamical mean-field theory and Hartree calculations to demonstrate that symmetry-breaking transitions are not necessary to observe cascades in twisted bilayer graphene.

    • Anushree Datta
    • , M. J. Calderón
    •  & E. Bascones
  • Article
    | Open Access

    Machine learning methods in condensed matter physics are an emerging tool for providing powerful analytical methods. Here, the authors demonstrate that convolutional neural networks can identify nematic electronic order from STM data of twisted double-layer graphene—even in the presence of heterostrain.

    • João Augusto Sobral
    • , Stefan Obernauer
    •  & Mathias S. Scheurer
  • Article
    | Open Access

    Transition metal monochalcogenides have been predicted to host interesting superconducting and topological properties, but their synthesis remains challenging. Here, the authors report a self-intercalation method driven by ionic liquid gating to obtain PdTe and NiTe single crystals from PdTe2 and NiTe2, respectively.

    • Fei Wang
    • , Yang Zhang
    •  & Shuyun Zhou
  • Article
    | Open Access

    Weak topological insulators offer promising topological state tunability for devices. Here, the authors use ARPES and first-principles calculations to evidence signatures of layer-selective quantum spin Hall channels that may be tunable with chemical potential for future applications.

    • Jingyuan Zhong
    • , Ming Yang
    •  & Yi Du
  • Article
    | Open Access

    Angular-resolved photoemission data is commonly used to determine the 3D electronic structure assuming free-electron final states. Strocov et al. show that even at high excitation energies the complexity of final states in various materials can go far beyond the free-electron picture.

    • V. N. Strocov
    • , L. L. Lev
    •  & J. Minár
  • Article
    | Open Access

    Tunability of the electronic properties of magnetic topological insulators is highly desired for future device applications. Here, the authors study the effect of substitutional impurities on the topological properties of Sb-doped MnBi2Te4 devices and uncover tunable layer-dependent electronic states.

    • Su Kong Chong
    • , Chao Lei
    •  & Kang L. Wang
  • Article
    | Open Access

    Solid helium is predicted to become a metal at extraordinarily high pressures of 25 TPa. Here, the authors predict that helium becomes an excitonic insulator just below the metallization pressure, and a superconductor just above the metallization pressure.

    • Cong Liu
    • , Ion Errea
    •  & Claudio Cazorla
  • Article
    | Open Access

    Hidden local order in disordered crystals is shown to have a strong impact on electronic and phononic band structures. Local correlations within hidden-order states can open band gaps, thereby changing properties without long-range symmetry breaking.

    • Nikolaj Roth
    •  & Andrew L. Goodwin