https://flatland-pi.vercel.app/materials/wse2.html The newest items tagged WSe₂ in the Flatland news feed. en Mon, 05 Oct 2026 08:10:53 GMT 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/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://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://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://arxiv.org/abs/2609.35125 https://arxiv.org/abs/2609.35125 Thu, 01 Oct 2026 04:00:00 GMT arXiv: In the search for topological states in bilayer graphene, capacitance measurement methods are widely utilized in bridge type readouts or source-drain reflectometry setups. In this paper we demonstrate an alternative readout method based on gate reflectometry. We probe the capacitance of a BLG flake encapsulated between… Theory Graphene WSe₂ hBN https://www.nature.com/articles/s41699-026-00745-7 https://www.nature.com/articles/s41699-026-00745-7 Wed, 30 Sep 2026 00:00:00 GMT npj 2D Materials and Applications: DC-operated near-infrared light emitting diode based on MOCVD-grown WSe₂ monolayers Theory WSe₂ https://arxiv.org/abs/2609.38033v1 https://arxiv.org/abs/2609.38033v1 Tue, 29 Sep 2026 17:10:05 GMT arXiv: Interlayer excitons in transition metal dichalcogenide (TMD) heterostructures exhibit long lifetimes and long-range transport, making them promising for excitonic devices and quantum many-body phases, such as Bose-Einstein condensates. Achieving these goals requires a precise understanding of spin-allowed bright and… Theory WSe₂ hBN https://arxiv.org/abs/2609.34104 https://arxiv.org/abs/2609.34104 Tue, 29 Sep 2026 04:00:00 GMT arXiv: Spectral fingerprints in optical absorption and emission have typically been used as a signature of exciton localization in twisted moiré bilayers. However, the mechanism by which excitons become confined to specific stacking sites and their associated optical signature is experimentally unresolved. Here, we directly… Theory WSe₂ WS₂ https://arxiv.org/abs/2606.06389 https://arxiv.org/abs/2606.06389 Tue, 29 Sep 2026 04:00:00 GMT arXiv: Magic-angle twisted bilayer graphene (MATBG) hosts flat bands whose correlated and topological phases depend sensitively on the electronic point-group symmetry, which is set by the device configuration including twist angle, heterostrain, and substrate and cap-layer coupling. Here we report near-infrared photocurrent… Theory Twisted graphene Graphene WSe₂ hBN https://doi.org/10.1021/acs.nanolett.6c02726 https://doi.org/10.1021/acs.nanolett.6c02726 Mon, 28 Sep 2026 19:02:02 GMT Nano Letters: Many recent advances in our understanding of two-dimensional electron systems stem from van der Waals (vdW) heterostructures. The assembly process relies on the weak bonding across interfaces between layered vdW compounds, making it possible to construct exceptionally clean heterostructures from chemically and… Experiment Graphene WSe₂ WTe₂ https://arxiv.org/abs/2609.34104v1 https://arxiv.org/abs/2609.34104v1 Mon, 28 Sep 2026 01:43:35 GMT arXiv: Spectral fingerprints in optical absorption and emission have typically been used as a signature of exciton localization in twisted moiré bilayers. However, the mechanism by which excitons become confined to specific stacking sites and their associated optical signature is experimentally unresolved. Here, we directly… Theory WSe₂ WS₂ https://www.nature.com/articles/s41467-026-77967-2 https://www.nature.com/articles/s41467-026-77967-2 Sat, 26 Sep 2026 00:00:00 GMT Nature Communications: Here, the authors investigate the transport kinetics of indirect excitons (IXs) in a MoSe2/WSe2 van der Waals heterostructure, and observe anomalously high IX mobility, consistent with IX superfluidity. Theory MoSe₂ WSe₂ https://iopscience.iop.org/article/10.1088/2053-1583/aea6ed https://iopscience.iop.org/article/10.1088/2053-1583/aea6ed Thu, 24 Sep 2026 23:00:00 GMT 2D Materials (IOP): There is rising interest in two-dimensional (2D) ferroelectrics, particularly as functional components in 2D heterostructures using their reconfigurable polarisation to create low-power memory devices. Understanding and optimising their application will require investigations that can unravel, at the nanoscale, the… Experiment Engineering CuInP₂S₆, CuCrP₂S₆ WSe₂ https://arxiv.org/abs/2609.30430v1 https://arxiv.org/abs/2609.30430v1 Thu, 24 Sep 2026 18:23:36 GMT arXiv: The role of nonlinear carrier dynamics in current-driven spin phenomena remains poorly understood in van der Waals magnetic heterostructures. Here, we investigate the spin polarization and the resulting spin-orbit torque (SOT) in transition-metal dichalcogenide/chromium iodide (TMDC/CrI₃) heterostructures, focusing on… Theory Experiment MoSe₂ WSe₂ CrI₃, VI₃, TiCl₃ https://www.nature.com/articles/s41586-026-11033-1 https://www.nature.com/articles/s41586-026-11033-1 Wed, 23 Sep 2026 00:00:00 GMT Nature: Observations of rhombohedral graphene on a WSe2 substrate at varying temperature, magnetic field and current indicate the presence of regions of gate space with zero-resistance superconductivity alongside others with finite saturation resistance. Experiment Twisted graphene Graphene WSe₂ https://arxiv.org/abs/2602.09093 https://arxiv.org/abs/2602.09093 Tue, 22 Sep 2026 04:00:00 GMT arXiv: Computational discovery of magnetic materials remains challenging because magnetism arises from the competition between kinetic energy and Coulomb interaction that is often beyond the reach of standard electronic-structure methods. Here we tackle this challenge by directly solving the many-electron Schrödinger equation… Theory WSe₂ WS₂ https://arxiv.org/abs/2609.25305v1 https://arxiv.org/abs/2609.25305v1 Mon, 21 Sep 2026 18:54:32 GMT arXiv: We investigate the proximity-induced spin-orbit coupling (SOC) in graphene on transition-metal dichalcogenide (TMD) heterostructures using a tight-binding approach. The tight-binding parameters of an effective 4-band model describing the low-energy physics of the graphene layer are extracted as a function of twist… Theory Graphene MoSe₂ MoS₂ WSe₂ WS₂ http://link.aps.org/doi/10.1103/wkgl-mtcm http://link.aps.org/doi/10.1103/wkgl-mtcm Mon, 21 Sep 2026 10:00:00 GMT Physical Review B: Studies of excitonic transport in transition metal dichalcogenide monolayers have attracted increasing interest in recent years for the development of nano-optoelectronic devices based on 2D materials. Here, the authors investigate biexciton transport using spatially and temporally resolved photoluminescence… Experiment WSe₂ https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.78498?af=R https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.78498?af=R Mon, 21 Sep 2026 06:19:19 GMT Advanced Functional Materials Experiment WSe₂ https://arxiv.org/abs/2604.19929 https://arxiv.org/abs/2604.19929 Thu, 17 Sep 2026 04:00:00 GMT arXiv: We study twisted bilayer WSe₂ within a continuum moiré model and apply a method for treating finite geometries directly in the continuum framework, thereby avoiding the limitations associated with purely momentum-space formulations and Wannier obstructions. By projecting a confinement potential onto bulk moiré… Theory Twisted graphene WSe₂ https://arxiv.org/abs/2608.15622 https://arxiv.org/abs/2608.15622 Thu, 17 Sep 2026 04:00:00 GMT arXiv: We show that intercalating a WSe₂ monolayer into bilayer graphene mediates wavefunction hybridization of the two graphene layers at the Fermi level. These delocalized states entangle both graphene layers, creating a synthetic bilayer graphene with interlayer coupling comparable to the proximity-induced spin-orbit… Theory Graphene WSe₂ https://arxiv.org/abs/2512.16651 https://arxiv.org/abs/2512.16651 Wed, 16 Sep 2026 04:00:00 GMT arXiv: Monolayer transition-metal dichalcogenides (TMDs) provide a platform for realizing Wigner crystals and enable their detection via exciton spectroscopy. We develop a microscopic theoretical model for excitons interacting with the localized electrons of the Wigner crystal, including their vibrational motion. In addition… Theory WSe₂ WS₂ https://arxiv.org/abs/2609.17707v1 https://arxiv.org/abs/2609.17707v1 Tue, 15 Sep 2026 18:19:32 GMT arXiv: Phononic frequency combs have been demonstrated experimentally and theoretically in the kHz-MHz regime under nonlinear driving; however, their spontaneous formation in the GHz-THz regime remains rare. We investigate the spontaneous formation of frequency combs in van der Waals solid CrGeTe₃, where combs of spacing ∼2… Theory Cr₂Ge₂Te₆ WSe₂ https://phys.org/news/2026-09-tiny-whirlpools-atom-thin-semiconductor.html https://phys.org/news/2026-09-tiny-whirlpools-atom-thin-semiconductor.html Mon, 14 Sep 2026 13:20:04 GMT Phys.org: Monash University-led researchers have directly imaged tiny swirling structures inside an atomically thin semiconductor, opening new possibilities for future low-energy electronic technologies. Published in Science Advances, the study reveals structures known as merons and antimerons, nanoscale "whirlpools" of… Everyone WSe₂ https://arxiv.org/abs/2609.14993v1 https://arxiv.org/abs/2609.14993v1 Mon, 14 Sep 2026 03:59:19 GMT arXiv: Symmetry breaking enables helicity-dependent optoelectronic responses in quantum materials. In two-dimensional transition-metal dichalcogenides (TMDs), circular photocurrent (CPC) is typically observed under oblique illumination via the circular photon drag effect, while realization of the intrinsic circular… Experiment Theory MoSe₂ WSe₂ https://www.nature.com/articles/s41467-026-77592-z https://www.nature.com/articles/s41467-026-77592-z Tue, 08 Sep 2026 00:00:00 GMT Nature: Two-dimensional materials Theory WSe₂ https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.74889?af=R https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.74889?af=R Wed, 02 Sep 2026 13:06:20 GMT Advanced Materials Experiment WSe₂ MPS₃ https://arxiv.org/abs/2609.02340v1 https://arxiv.org/abs/2609.02340v1 Wed, 02 Sep 2026 09:16:12 GMT arXiv: Moiré superlattices in heterobilayers of atomically thin transition metal dichalcogenides provide a versatile platform for exploring quantum many-body physics as they can trap excitons, leading to the formation of quantized moiré exciton states. However, such moiré excitons have been predominantly studied at cryogenic… Experiment Theory MoS₂ WSe₂ https://arxiv.org/abs/2609.01149v1 https://arxiv.org/abs/2609.01149v1 Tue, 01 Sep 2026 12:25:21 GMT arXiv: Interlayer excitons in transition-metal dichalcogenide heterobilayers possess intrinsic out-of-plane dipole moments, providing a platform for investigating exciton-exciton interactions at high densities. Here, we use excitation-energy-dependent photoluminescence excitation (PLE) spectroscopy to probe the nonlinear… Experiment MoSe₂ WSe₂ https://arxiv.org/abs/2608.28574v2 https://arxiv.org/abs/2608.28574v2 Fri, 28 Aug 2026 17:52:00 GMT arXiv: Localized interlayer excitons in semiconducting transition-metal dichalcogenide heterobilayers are quantum emitters with a static electric dipole moment, making them excellent nanoscale charge sensors to probe correlated quantum phases in a proximal layer. These emitters are electrically tunable and inherit spin-valley… Theory Experiment MoSe₂ WSe₂ https://arxiv.org/abs/2608.28574v1 https://arxiv.org/abs/2608.28574v1 Fri, 28 Aug 2026 17:52:00 GMT arXiv: Localized interlayer excitons in semiconducting transition-metal dichalcogenide heterobilayers are quantum emitters with a static electric dipole moment, making them excellent nanoscale charge sensors to probe correlated quantum phases in a proximal layer. These emitters are electrically tunable and inherit spin-valley… Experiment MoSe₂ WSe₂ https://arxiv.org/abs/2608.28338v1 https://arxiv.org/abs/2608.28338v1 Fri, 28 Aug 2026 13:50:48 GMT arXiv: Increasing the number of internal components in a quantum many-body system can host collective orders inaccessible to simpler settings. Quantum Hall bilayers provide a canonical realization of interlayer exciton condensation, yet extending such coherence across three independently addressable electronic fluids has… Theory Experiment Graphene WSe₂ https://arxiv.org/abs/2608.26864v1 https://arxiv.org/abs/2608.26864v1 Thu, 27 Aug 2026 09:29:05 GMT arXiv: Twisted bilayers of two-dimensional (2D) transition metal dichalcogenides are promising systems for achieving tunable quasicrystalline orders with emergent properties. The underpinning electronic structure and scattering processes in 2D quasicrystals with multiorbital dodecagonal replica bands have so far not been… Experiment WSe₂ http://link.aps.org/doi/10.1103/s91z-v9m2 http://link.aps.org/doi/10.1103/s91z-v9m2 Mon, 24 Aug 2026 10:00:00 GMT Physical Review Materials: Functionalization of 2D materials and of transition metal dichalcogenides (TMDs) in particular is central for next generation devices and other applications. Here we study the effect of calcium dosing on the surfaces of clean WSe₂ and WS₂ in ultrahigh vacuum by x-ray … [Phys. Rev. Materials 10, 084004] Published Mon… Theory WSe₂ WS₂ https://arxiv.org/abs/2608.21493v2 https://arxiv.org/abs/2608.21493v2 Fri, 21 Aug 2026 13:26:40 GMT arXiv: All-optical tuning of van der Waals heterostructures with coherent radiation offers a promising path toward ultrafast memory and optoelectronic devices. In the first-principles framework of real-time time-dependent density functional theory, we predict the induction of a persistent, long-lived out-of-plane polarization… Theory MoS₂ WSe₂ https://arxiv.org/abs/2608.11914v1 https://arxiv.org/abs/2608.11914v1 Wed, 12 Aug 2026 10:46:55 GMT arXiv: Exciton-phonon coupling in atomically thin transition metal dichalcogenides governs key processes such as exciton thermalization and intervalley scattering and remains challenging to access directly by optical spectroscopy. Here, we employ resonance Raman spectroscopy at cryogenic temperatures to probe exciton-phonon… Experiment WSe₂ hBN https://arxiv.org/abs/2608.10631v1 https://arxiv.org/abs/2608.10631v1 Tue, 11 Aug 2026 08:17:22 GMT arXiv: Slow cyclic modulation of an open quantum system can generate a geometric contribution to its energy transfer statistics, separable from the dynamic background. In this work we construct an experimentally anchored four state open system model for a gate-tunable WSe2/WS2 moiré exciton manifold within a population level… Theory Experiment WSe₂ WS₂ https://arxiv.org/abs/2608.08917v1 https://arxiv.org/abs/2608.08917v1 Sun, 09 Aug 2026 21:13:10 GMT arXiv: Moiré transition metal dichalcogenide (TMD) heterobilayers are commonly modeled by a continuum theory that yields topologically trivial bands, in contrast to their homobilayer counterparts which host topological bands and fractional Chern insulators (FCI). We show this conclusion is an artifact of neglecting the… Theory WSe₂ WS₂ https://arxiv.org/abs/2608.04888v2 https://arxiv.org/abs/2608.04888v2 Wed, 05 Aug 2026 14:12:30 GMT arXiv: All-two-dimensional magnetic tunnel junctions promise atomically sharp interfaces, yet the role of interface-induced states in their spin transport is not fully understood. Here, we theoretically investigate spin-dependent transport in van der Waals magnetic tunnel junctions of the structure Cr₂C/MY₂/Cr₂C (M = Mo, W; Y… Theory MoSe₂ WSe₂ WS₂ https://arxiv.org/abs/2608.04151v1 https://arxiv.org/abs/2608.04151v1 Tue, 04 Aug 2026 18:59:08 GMT arXiv: Localized interlayer excitons (IX) in moiré transition metal dichalcogenide heterostructures can both probe and participate in many-body states hosted by the moiré superlattice. When the IX density is small compared to the moiré lattice density, the formation of incompressible charge crystals at fractional electronic… Theory WSe₂ WS₂