https://flatland-pi.vercel.app/news.html The newest papers, preprints and stories on 2D materials from the Flatland news feed. en Mon, 05 Oct 2026 08:10:53 GMT https://doi.org/10.1021/acs.nanolett.6c03873 https://doi.org/10.1021/acs.nanolett.6c03873 Mon, 05 Oct 2026 06:02:33 GMT Nano Letters: Optoelectronic synaptic devices, particularly those based on two-dimensional (2D) transition metal dichalcogenides (TMDs), emulate biological synaptic functions, promising in neuromorphic computing. However, most TMD-based synapses rely on external gate or bias control, leading to complicated device architecture and… Experiment MoS₂ https://www.graphene-info.com/first-graphene-partners-aeropreg-commercialize-graphene-enhanced-carbon-fiber https://www.graphene-info.com/first-graphene-partners-aeropreg-commercialize-graphene-enhanced-carbon-fiber Mon, 05 Oct 2026 04:53:43 GMT Graphene-Info: First Graphene has entered a three-year Development and Commercialization Agreement with Turkish prepreg manufacturer Aeropreg to bring a PureGRAPH®-enhanced carbon fiber prepreg to market. The agreement pairs First Graphene's proprietary epoxy concentrates, developed to optimize how PureGRAPH® graphene is incorporated… Everyone Engineering Graphene https://arxiv.org/abs/2610.02326 https://arxiv.org/abs/2610.02326 Mon, 05 Oct 2026 04:00:00 GMT arXiv: In the temperature interval T∼50 - 100 K, the rate of electron-electron collisions in graphene devices may exceed the momentum relaxation rate due to disorder and electron-phonon scattering. In this regime, the motion of the electron liquid may be described by the hydrodynamic equations. In the hydrodynamic… Theory Graphene https://arxiv.org/abs/2610.02514 https://arxiv.org/abs/2610.02514 Mon, 05 Oct 2026 04:00:00 GMT arXiv: A central goal of the emerging field of materials QED is to harness subwavelength electromagnetic confinement in engineered cavities to tailor light-matter interactions. Here, we demonstrate that van der Waals multilayer cavities composed of stacked graphene and hexagonal boron nitride (hBN) provide unprecedented… Theory Graphene hBN https://arxiv.org/abs/2610.03532 https://arxiv.org/abs/2610.03532 Mon, 05 Oct 2026 04:00:00 GMT arXiv: We theoretically investigate the optical response of the WSe2 monolayer vertically stacked on twisted bilayer graphene (tBG) under electrostatic doping. In this heterostructure, the doped moiré superlattice of tBG generates a spatially modulated electrostatic potential that couples to the electron and hole constituents… Theory Twisted graphene Graphene WSe₂ https://arxiv.org/abs/2610.03601 https://arxiv.org/abs/2610.03601 Mon, 05 Oct 2026 04:00:00 GMT arXiv: The recent discovery of high-Tc superconductivity in bilayer nickelates has highlighted the crucial role of interlayer coupling and motivated proposals for dominant interlayer pairing. Whether such pairing can support topological superconductivity, however, remains unexplored. Here, we demonstrate that… Theory https://arxiv.org/abs/2602.21463 https://arxiv.org/abs/2602.21463 Mon, 05 Oct 2026 04:00:00 GMT arXiv: Schottky junctions based on transition-metal dichalcogenides underpin next-generation optoelectronic devices, yet the nanoscale carrier dynamics that ultimately govern their performance remain largely inaccessible. Here, we employ optical pump-probe time-resolved atomic force microscopy (OPP-TR-AFM) to investigate the… Experiment Theory WSe₂ https://arxiv.org/abs/2606.21065 https://arxiv.org/abs/2606.21065 Mon, 05 Oct 2026 04:00:00 GMT arXiv: Periodically strained graphene provides a versatile platform to realize moiré-like electronic structures. We show that the interplay between strain-induced pseudomagnetic field and a displacement-field-controlled scalar potential enables the formation of isolated narrow bands. Some of the low-energy bands are… Theory Graphene https://arxiv.org/abs/2610.03547 https://arxiv.org/abs/2610.03547 Mon, 05 Oct 2026 04:00:00 GMT arXiv: Optical polarization is a key degree of freedom in quantum photonic and sensing technologies, enabling efficient light--matter coupling and directional emission. However, in defect ensemble-based quantum systems, orientational averaging across many defects suppresses optical anisotropy and eliminates a deterministic… Theory hBN https://arxiv.org/abs/2510.22041 https://arxiv.org/abs/2510.22041 Mon, 05 Oct 2026 04:00:00 GMT arXiv: Multifunctional solid-state materials are crucial for enabling safer and simpler lithium battery architectures. Here we report a scalable, solvent-free mechanochemical strategy to overcome the chemical inertness of hexagonal boron nitride and produce Li₂(BN)₆C₂O₄ (LBNCO), a lithium-rich boron nitride nanostructure.… Theory hBN https://arxiv.org/abs/2603.06998 https://arxiv.org/abs/2603.06998 Mon, 05 Oct 2026 04:00:00 GMT arXiv: The unique properties of two-dimensional moiré systems have been widely studied from many perspectives. However, relatively little work has investigated how the real-space structure of moiré systems can directly engender novel properties and functionalities. In this Letter, we explore how intriguing cooperative optical… Theory https://arxiv.org/abs/2610.03049 https://arxiv.org/abs/2610.03049 Mon, 05 Oct 2026 04:00:00 GMT arXiv: Nonlinear metasurfaces (NMSs) enable simultaneous generation and manipulation of harmonic light with ultrathin nanophotonic platforms. However, conventional NMSs typically adopt a monolithic single-layer configuration in which frequency conversion, polarization selection and wavefront engineering are intertwined to… Theory https://www.graphene-info.com/sirocas-graphene-coated-personal-heater-reaches-full-warmth-three-seconds https://www.graphene-info.com/sirocas-graphene-coated-personal-heater-reaches-full-warmth-three-seconds Sun, 04 Oct 2026 11:34:41 GMT Graphene-Info: Japanese appliance maker Siroca will launch a graphene-coated personal space heater, the "Sumipoka" (model SH-GC251), on October 16, priced at ¥13,860 (about US$88). The compact heater uses a graphene coating on its heating element to generate warmth within three seconds of being switched on, combining the material's… Everyone Engineering Graphene https://doi.org/10.1021/acs.nanolett.6c03297 https://doi.org/10.1021/acs.nanolett.6c03297 Sat, 03 Oct 2026 15:01:47 GMT Nano Letters: Air-sensitive 2D materials present fundamental challenges for device integration. Encapsulation is required to preserve intrinsic properties, yet conventional strategies require complicated fabrication workflows and fail with thicker flakes. We demonstrate that electron-beam (e-beam) evaporated aluminum oxide (AlOx)… Experiment WTe₂ LaTe₃, GdTe₃, ErTe₃ https://doi.org/10.1021/acs.nanolett.6c03133 https://doi.org/10.1021/acs.nanolett.6c03133 Sat, 03 Oct 2026 15:01:45 GMT Nano Letters: Spectrally isolated, electrically driven emission from localized states in two-dimensional semiconductors remains challenging in scalable planar devices. Here, we report narrow-line-width alternating-current electroluminescence (ACEL) from localized states in monolayer WSe2 using a lithographically defined sub-5 nm… Experiment WSe₂ https://www.sciencedaily.com/releases/2026/09/260930225456.htm https://www.sciencedaily.com/releases/2026/09/260930225456.htm Sat, 03 Oct 2026 12:03:23 GMT ScienceDaily: Researchers have demonstrated that quantum fluctuations in supposedly empty space can strengthen superconductivity, raising the transition temperature of an ultrathin material by as much as 5.4%. The discovery opens the possibility of using specially engineered vacuum environments to control quantum materials without… Everyone https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.78847?af=R https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.78847?af=R Sat, 03 Oct 2026 03:56:20 GMT Advanced Functional Materials Experiment hBN https://www.graphene-info.com/record-setting-proton-acceleration-achieved-using-ultrathin-graphene-laser https://www.graphene-info.com/record-setting-proton-acceleration-achieved-using-ultrathin-graphene-laser Sat, 03 Oct 2026 03:00:07 GMT Graphene-Info: Researchers at the University of Osaka, working with collaborators across institutions in Japan, Taiwan, the UK, and France, have used an ultrathin, large-area suspended graphene target to accelerate protons to 132 MeV, nearly half the speed of light, in a laser-driven ion acceleration experiment. Laser-driven ion… Everyone Graphene https://doi.org/10.1021/acsnano.6c07014 https://doi.org/10.1021/acsnano.6c07014 Sat, 03 Oct 2026 01:01:36 GMT ACS Nano: Transition metal ditellurides exhibit structural and electronic properties distinct from their selenide and sulfide counterparts, including the stabilization of multiple charge density wave (CDW) phases. Within the niobium compound family, notable differences in structure are also observed: bulk NbTe2 crystallizes in… Experiment Graphene NbSe₂, NbS₂, NbTe₂ https://doi.org/10.1021/acsami.6c06987 https://doi.org/10.1021/acsami.6c06987 Fri, 02 Oct 2026 23:01:43 GMT ACS Applied Materials & Interfaces: Integrating heterogeneous photocatalysis with enzymatic redox transformations remains challenging due to inefficient cofactor regeneration and limited charge transport across hybrid interfaces. Herein, we report a sulfur-mediated covalent triazine framework (S/M-CTF) assembled by the cyclotrimerization of a… Experiment Engineering Graphene https://arxiv.org/abs/2610.03532v1 https://arxiv.org/abs/2610.03532v1 Fri, 02 Oct 2026 16:18:34 GMT arXiv: We theoretically investigate the optical response of the WSe2 monolayer vertically stacked on twisted bilayer graphene (tBG) under electrostatic doping. In this heterostructure, the doped moiré superlattice of tBG generates a spatially modulated electrostatic potential that couples to the electron and hole constituents… Theory Experiment Twisted graphene Graphene WSe₂ https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.75250?af=R https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.75250?af=R Fri, 02 Oct 2026 14:02:23 GMT Advanced Materials Experiment Graphene https://doi.org/10.1039/d6mh01631f https://doi.org/10.1039/d6mh01631f Fri, 02 Oct 2026 11:59:33 GMT Materials Horizons: A compact and tunable bilayer Janus metamaterial enables on-demand switching among concentration, rotation, and transparency functions in both thermal and electric fields and can be readily extended to arbitrary Laplacian fields. Experiment https://www.azonano.com/news.aspx?newsID=41848 https://www.azonano.com/news.aspx?newsID=41848 Fri, 02 Oct 2026 11:35:00 GMT AZoNetwork: Researchers combined millisecond-resolution small-angle X-ray scattering microscopy with polarized light imaging to track nanoscale particle orientation and macroscopic Taylor–Couette flow across seven orders of magnitude in length scale. The experiments showed that platelet-like graphene oxide largely tracked the… Everyone GO / rGO Graphene https://doi.org/10.1039/d6nr02709a https://doi.org/10.1039/d6nr02709a Fri, 02 Oct 2026 10:37:51 GMT Nanoscale: Two-dimensional intrinsic ferromagnetic (FM) materials with a Curie temperature ( T C ) above room temperature and tunable half-metallic electronic structures are highly desirable for potential spintronic devices applications. This work presents a... Experiment http://link.aps.org/doi/10.1103/h96k-q32d http://link.aps.org/doi/10.1103/h96k-q32d Fri, 02 Oct 2026 10:00:00 GMT Physical Review Letters: At an even filling, a rhombohedral octalayer graphene moiré superlattice with electric-field-tunable chirality hosts a robust Chern insulating state. [Phys. Rev. Lett. 137, 146505] Published Fri Oct 02, 2026 Theory Twisted graphene Graphene http://link.aps.org/doi/10.1103/44gb-44x4 http://link.aps.org/doi/10.1103/44gb-44x4 Fri, 02 Oct 2026 10:00:00 GMT Physical Review B: In ultraclean 2D materials, electron viscosity is as important as Ohmic dissipation, and electron transport exhibits hydrodynamic features. Using a simple framework of Brinkman equations, we find that hydrodynamic electron flows give rise to a geometric skin effect: sharp obstacles locally enhance t… [Phys. Rev. B 114… Theory http://link.aps.org/doi/10.1103/6byg-rx71 http://link.aps.org/doi/10.1103/6byg-rx71 Fri, 02 Oct 2026 10:00:00 GMT Physical Review B: Electrostatically defined quantum dots (QDs) with layer-antisymmetric gating in Bernal-stacked bilayer graphene (BLG) open a local gap and generate a masslike term with opposite sign in the two valleys, producing strongly valley-dependent scattering without magnetic fields, strain, or spin-orbit cou… [Phys. Rev. B 114… Theory Graphene https://doi.org/10.1021/acsami.6c15768 https://doi.org/10.1021/acsami.6c15768 Fri, 02 Oct 2026 09:01:33 GMT ACS Applied Materials & Interfaces: Contact resistance remains a primary bottleneck in two-dimensional (2D) semiconductor field-effect transistors (FETs), yet the concurrent influence of metal work function, adhesion, and deposition temperature obscures the underlying mechanisms. Here, using bilayer MoS2 as a model system, we systematically benchmark… Experiment Engineering MoS₂ https://doi.org/10.1021/acsnano.6c13084 https://doi.org/10.1021/acsnano.6c13084 Fri, 02 Oct 2026 08:01:31 GMT ACS Nano: Broadband infrared photodetectors operating at room temperature are fundamentally limited by the lack of efficient gain mechanisms for weak optical signals. Phase-transition materials provide a promising route for intrinsic signal amplification owing to their extreme sensitivity near critical transition boundaries.… Engineering TaS₂, TaSe₂ https://arxiv.org/abs/2610.00473 https://arxiv.org/abs/2610.00473 Fri, 02 Oct 2026 04:00:00 GMT arXiv: Van der Waals heterostructures exhibit self-cavity resonances from sub-terahertz to terahertz frequencies and thus offer an attractive route toward realizing cavity-modified phases of matter. Spectroscopy of such systems calls for high frequency resolution at millikelvin temperatures, which is extremely challenging… Theory Graphene https://arxiv.org/abs/2610.00768 https://arxiv.org/abs/2610.00768 Fri, 02 Oct 2026 04:00:00 GMT arXiv: A graphene slit junction is investigated as a compact geometry for directional electron-beam formation, coherent interference, and symmetry-controlled spin filtering. Atomistic tight-binding calculations combined with the nonequilibrium Green's function formalism show that trigonal warping in monolayer graphene… Theory Graphene https://arxiv.org/abs/2610.01089 https://arxiv.org/abs/2610.01089 Fri, 02 Oct 2026 04:00:00 GMT arXiv: Spintronic terahertz (THz) emitters based on ferromagnet/heavy-metal heterostructures provide efficient broadband sources of THz radiation, yet the microscopic relation between ultrafast spin transport and charge redistribution remains incompletely understood. Here, we employ time-dependent density functional theory to… Theory https://arxiv.org/abs/2610.01194 https://arxiv.org/abs/2610.01194 Fri, 02 Oct 2026 04:00:00 GMT arXiv: Graphene nanoribbons (GNRs) are a highly tunable class of one-dimensional (1D) quantum materials that can be fabricated through bottom-up synthesis. Precise control over GNR band gaps and band-edge alignments has established them as a promising nanoelectronics platform, but forming high-quality electronic interfaces… Experiment Graphene https://arxiv.org/abs/2610.01423 https://arxiv.org/abs/2610.01423 Fri, 02 Oct 2026 04:00:00 GMT arXiv: Structured light can generate electronic dc currents with azimuthal winding, yet the rules governing their winding order m remain unclear. Here we identify sector-resolved winding selection rules using graphene as a clean two-dimensional platform. By decomposing the current response into local and gradient sectors at… Theory Graphene https://arxiv.org/abs/2604.09504 https://arxiv.org/abs/2604.09504 Fri, 02 Oct 2026 04:00:00 GMT arXiv: We study the superconducting diode effect (SDE) in a diffusive superconductor - normal metal (SN) bilayer subjected to an in-plane magnetic field. The supercurrent flows along the layers, perpendicular to the field. The SDE, manifested as an asymmetry in the critical (depairing) currents and kinetic inductance for… Theory https://arxiv.org/abs/2610.00496 https://arxiv.org/abs/2610.00496 Fri, 02 Oct 2026 04:00:00 GMT arXiv: We develop a general operator theory of orbital angular momentum (OAM) in periodic solids that applies equally to equilibrium and coherently driven states. Employing the crystal momentum representation of Adams and Blount, we construct a periodic-solid OAM operator exactly corresponding to the symmetrized r×v… Theory Graphene https://arxiv.org/abs/2610.01722 https://arxiv.org/abs/2610.01722 Fri, 02 Oct 2026 04:00:00 GMT arXiv: Bismuth telluride (Bi2Te3) is a prototypical V-VI semiconductor of interest for both thermoelectric and topological applications; however, phase-selective synthesis and thermal stability across the bismuth-telluride homologous series remain poorly understood. We report a facile and phosphine-free colloidal synthesis… Theory Bi₂Se₃, Bi₂Te₃ https://arxiv.org/abs/2610.01764 https://arxiv.org/abs/2610.01764 Fri, 02 Oct 2026 04:00:00 GMT arXiv: The exceptionally large diamagnetic susceptibility of a single-crystal graphite in the direction perpendicular to the graphene layers is caused by the Landau levels. However, there are also other contributions to the magnetic susceptibility. In particular, in metals the Pauli paramagnetism is leading, whereas in… Theory Graphene https://arxiv.org/abs/2610.01757 https://arxiv.org/abs/2610.01757 Fri, 02 Oct 2026 04:00:00 GMT arXiv: The discovery of spin-density-wave (SDW) order in bilayer nickelates has intensified interest in its interplay with superconductivity. Unlike cuprates, where doping rapidly suppresses the Néel temperature, the SDW transition temperature (TSDW) in bilayer nickelates is robust against oxygen annealing and even increases… Theory