The pursuit of beyond-Moore information technologies has stimulated the exploration of novel information carriers, such as electron spin, orbital, and magnon, beyond electron charge. Efficient interconversion among these degrees of freedom and precise control over the information states are crucial for advancing nanoelectronic devices. However, a direct coupling between orbital angular momentum (L) and magnons (M) has remained elusive, and magnetization switching through orbital-to-magnon (L-M) conversion has not yet been achieved. Here, we report the experimental demonstration of L-M conversion in an orbital metal/antiferromagnetic insulator bilayer at room temperature, with an efficiency over an order of magnitude higher than that in traditional orbital systems lacking the L-M process. Consequently, we achieved efficient room-temperature perpendicular magnetization switching in a CoFeB ferromagnetic layer mediated by this new mechanism. Our findings establish a direct link between orbitronics and magnonics, providing a new platform for the development of advanced nano-devices based on orbital-driven magnonic phenomena.

We study charge transport in a magnetized relativistic plasma using kinetic theory within the relaxation-time approximation. By exactly solving the linearized Boltzmann equation in a uniform magnetic field, we obtain an analytic solution for the distribution function in terms of Bessel functions. Using this solution, we compute the full set of retarded current-current correlators and verify the Ward identities. In the hydrodynamic limit, we extract the charge diffusion modes, demonstrating that the transverse diffusion coefficient is strongly suppressed by the magnetic field, scaling as 1/B_0^2 in the strong-field regime, while the longitudinal diffusion remains unaffected. Furthermore, we analyze the non-hydrodynamic branch cuts in the complex frequency plane, determining their kinematic thresholds and identifying the underlying wave-particle interactions as longitudinal Landau damping and transverse cyclotron damping.

Two-dimensional (2D) spin valves are important for energy-efficient memory and computation devices but remain limited in achieving high magnetoresistance (MR) ratios at room temperature due to the lack of suitable ferromagnetic materials, optimal spin transport channel spacers, and great challenges in atom-level interface control in heterostructures. Here we report a record room temperature MR up to 103% for all-van der Waals (vdW) heterostructures by employing vdW ferromagnetic Fe3GaTe2 (FGaT) electrodes with vdW monoelemental black or violet phosphorus spacers. Notably, these devices exhibit magnetic field angle-independent MR while retaining anisotropic coercivity. This behavior originates from domain wall motion-driven magnetization reversal and the strong perpendicular magnetic anisotropy of the FGaT. First‑principles transport calculations reveal an intrinsic zero‑bias MR of up to 330% at the Fermi level for ideal interfaces and a monolayer spacer, supporting the high spin‑polarized transport capability of these heterostructures. The experimental room temperature MR is lower due to finite bias, temperature, spacer thickness, and realistic interface conditions. These results demonstrate the potential of 2D vdW monoelemental phosphorus as a high-efficiency spin-transport channel in room temperature all-vdW spin valves and provide a framework for designing field-orientation-resilient non-volatile spintronic memory devices.

We systematically investigate the transport and photoluminescence measurements of a high-mobility twodimensional electron gas in a GaAs/AlGaAs quantum well under magnetic fields B. By tuning the laser excitation power P-ex, transitional patterns of the singlet and triplet (negative charged) trions occur in the high-B regime: The two branches of singlet trions X-s(-) dominate at low P-ex (<1 W/mm(2)), and six more triplet X(t)(- )branches emerge at high P-ex (similar to 1 - 10 W/mm(2)). At extremely high laser P-ex (>100 W/mm(2)) and at fixed B fields, robust Fano resonance features are accompanied by the Gaussian resonance centered at X-s(-), which illustrates dark and bright trions. Therefore, a very high laser excitation (or electromagnetic field) becomes an efficient tool to probe dark trions. In addition, discontinuity and splitting features occur at fillings v = 2, 4, 6, and the abrupt drops at high odd fillings factors (v similar to 5, 7, 9, etc.) originate from spin-resolved many-body interactions.

We experimentally demonstrated magnon transmission in a vertical geometry consisting of multiferroic Bi1.05La0.05FeO3 (BLFO) and heavy-metal Pt layers. Notably, a giant nonvolatile on-off modulation ratio of similar to 120% under zero-field operation, together with high magnon drag efficiency (similar to 3.51 & times; 10(-3) V A(-1)), was observed in a vertical Pt/BLFO/Pt device at room temperature. The magnon-mediated drag effect in the nonlocal Pt/BLFO/Pt symmetrical layers was investigated via the magnetic field, angle, and current density dependence. The intrinsic giant on-off modulation of the magnon signal, along withnonvolatile transport under zero-field operation and polarization-controlled Neel vectors of multiferroics, moves a possible step toward the practical utilization of multiferroic vertical magnon devices. This work may contribute to magnonic transport with high-speed, miniaturization and ultralow energy consumption.

Magnons, as key carriers of spin angular momentum, enable spin transport without charge movement in magnetic insulators, thereby greatly reducing Joule heating in spintronic devices. Magnon-mediated spin torque (i.e., magnon torque) provides an alternative approach for efficient magnetization manipulation. However, magnon transmission through antiferromagnetic insulators still suffers from notable propagation losses, limiting the efficiency of magnon torque. Here, we fabricate high-quality epitaxial α-Fe 2 O 3 thin films by magnetron sputtering that exhibit strong antiferromagnetic ordering, and successfully demonstrate highly efficient magnon transport and magnon torque in Pt/α-Fe 2 O 3 /NiFe devices at room temperature. It is observed that magnons propagate through a 20-nm-thick α-Fe 2 O 3 layer with a significantly enhanced transmission efficiency of 75%, about 2.5 times higher than that in previously reported NiO-based magnonic devices. Consequently, a pronounced magnon torque is exerted on the adjacent ferromagnetic layer. Our work demonstrates that α-Fe 2 O 3 is a promising antiferromagnetic material for efficient magnon channels, advancing the study of energy-efficient, high-speed magnonics devices.

By analysing 6.1 fb−1 of data collected at centre-of-mass energies between √(s)=4.600 and 4.843 GeV with the BESIII detector at the BEPCII collider, we observe the decay Λ_c^+→ nπ^+η for the first time with a statistical significance of 9.5σ. The ratio of branching fractions ℬ(Λ_c^+→ nπ^+η)/ℬ(Λ_c^+→Λπ^+η) is measured to be 0.155 ± 0.031stat. ± 0.012syst. Taking the world average of ℬ(Λ_c^+→Λπ^+η) as reference, the absolute branching fraction is calculated to be ℬ(Λ_c^+→ nπ^+η)=(2.94±0.59_stat.±0.23_syst.±0.13_ref.)×10^-3 . The intermediate process Λ_c^+→ na_0(980)^+ is also searched for in the π+η invariant mass spectrum. Since no significant signal is found, the upper limit on ℬ(Λ_c^+→ na_0(980)^+)×ℬ(a_0(980)^+→π^+η) is set to 8.4 × 10−4 at 90

Imaging objects hidden outside the direct line of sight expands the effective field of view and is critical for applications such as autonomous driving and robotic perception. Despite impressive progress in time-of-flight (ToF)-based non-line-of-sight (NLOS) imaging, real-world deployment remains challenging because practical measurements are often collected over spatially limited, arbitrarily shaped relay regions-conditions that violate the planar-wall and dense-sampling assumptions made by most existing methods. To address these limitations, we propose a LOS-guided NLOS imaging pipeline that imposes no geometric assumptions on the relay surface and naturally supports both confocal and non-confocal configurations. Our method represents the hidden scene using 3D Gaussian primitives and couples them with an efficient, differentiable transient rendering model, enabling end-to-end optimization directly from measured transients. We validate our approach on real-world measurements from both a public dataset and a custom-built capture system. Across settings, our method achieves state-of-the-art reconstruction fidelity under spatially limited, sparsely sampled conditions, and significantly outperforms existing methods on complex, arbitrary relay surface geometries.

Improved measurements of the coherence factors and strong-phase differences in D → K−π+π+π− and D → K−π+π0 decays are reported, using quantum-correlated DD pairs produced in e+e− annihilation at a center-of-mass energy of 3.773 GeV, where D denotes a quantum superposition of the flavour-specific D0 and D^0 mesons. The analysis employs a dataset collected by the BESIII experiment, corresponding to an integrated luminosity of 7.93 fb−1. The observables sensitive to the coherence factors and strong-phase differences are measured by reconstructing one D meson in the signal mode and the other in a tag mode. These parameters provide essential inputs to the measurement of the angle γ of the Cabibbo-Kobayashi-Maskawa Unitarity Triangle in the LHCb and Belle II experiments. The coherence factors are determined to be RK3π = 0.51 ± 0.04 and R_Kππ^0=0.75± 0.03 , and the strong-phase differences are δ_D^K3π=(182_-13^+14)^∘ and δ_D^Kππ^0=(209_-8^+7)^∘ , where the uncertainties include both statistical and systematic contributions. For D → K−π+π+π−, the parameters have been further determined in four phase-space bins with improved precision compared to the previous BESIII results. The uncertainty on future γ measurements from the knowledge of D → K−π+π+π− parameters is expected to be reduced to approximately 3.5°.

The exploration of the regulation mechanism about Chern number (C) is crucial for acquiring high topological state in quantum anomalous Hall effect (QAHE). In this study, by symmetry analysis and first-principles calculations, monolayer XBiO3 (X = Pd, Pt) are proven to be QAH insulators with tunable topological state. As the magnetization direction changes in the xy plane, monolayer XBiO3 switch between QAH insulator with C = |1| by the breaking or protecting mirror symmetries for different polar angles. Comparatively, as the magnetization direction alters in the xz plane, monolayer XBiO3 vary among QAH insulator with C = |3|, QAH insulator with C = |1| as well as mixed semimetal and QAH state with a period of 180 degrees. The topological band gaps are as high as 114 and 132 meV for mono-layers PdBiO3 and PtBiO3, respectively. The critical magnetic transition temperature of monolayers PdBiO3 and PtBiO3 reach up to 432 and 550 K, respectively. Notably, the QAH feature is robust for strains and U values. Our work provides an ideal platform to investigate the tunable high Chern number QAHE and design high performance QAH devices. and topological trivial semimetal with a period of 60 degrees. It is caused

Using ( 10087 ± 44 ) × 10 6 J / ψ events collected with the BESIII detector at the BEPCII collider, we report the first observation of the decay η c → Ξ 0 Ξ ¯ 0 . The interference between J / ψ → γ η c → γ Ξ 0 Ξ ¯ 0 and J / ψ → γ Ξ 0 Ξ ¯ 0 | non − resonance is considered in the Ξ 0 Ξ ¯ 0 mass spectrum fits. The branching fractions are measured to be B ( η c → Ξ 0 Ξ ¯ 0 ) = ( 1.33 ± 0.03 ± 0.18 ) × 10 − 3 for the constructive interference and B ( η c → Ξ 0 Ξ ¯ 0 ) = ( 1.63 ± 0.04 ± 0.21 ) × 10 − 3 for the destructive interference, where the first uncertainties are statistical and the second are systematic.

Our study demonstrates bidirectional and reversible electrical conversion between asymmetric and symmetric magnetoresistance in NiO/Co/Pt heterostructures via magnetic field-symmetry engineering. We show that field symmetry directly dictates the emergent magnetoresistance symmetry, enabling programmable room-temperature switching among asymmetric, forward-symmetric, and reverse-symmetric configurations. This reconfigurability originates from a polarity-selective, half-field mirror inversion of resistance spikes under symmetry breaking, governed by the field-dependent reconfiguration of the rotation sequence between interfacial and bulk cobalt magnetic moments. The work establishes a novel approach to directly tailor magnetoresistance by manipulating field symmetry without altering the underlying spin transport physics, providing a prototypical platform for field-programmable spintronic devices.

Abstract Neuronal magnetic signal recording intrinsically provides vector information and tissue transparency, offering a potential route to overcome the spatial resolution limitations of conventional electrophysiological recordings. However, in situ detection of neuronal magnetic signals at the cellular level remains highly challenging due to the limited sensitivity of microscale magnetic sensors and the presence of background noise. Here, we report a high-sensitivity implantable differential magnetrode based on a dual-pinned magnetic tunnel junction (TMR). By implementing a spatially decoupled differential architecture with a long baseline (5 mm), together with a sensitivity dynamically matched interface circuit, the device effectively suppresses environmental common-mode noise and achieves an ultralow detection limit of 68 pT/√Hz at 1 kHz. Benefiting from an optimized bidirectional SiO₂/Si₃N₄ protective interface, the device exhibits good biocompatibility and stability. Using this magnetrode, we detected action potential-related magnetic signals in the CA1 region of the rat hippocampus. Crucially, we experimentally observed polarity reversals in spike waveforms that correlate with neuronal spatial orientation, demonstrating the potential of magnetic recording to distinguish neural current directionality based on vector information. This work provides a novel sensing tool for microscale neuroscience research and offers a new technical pathway for resolving the spatial topology of complex neural circuits.

Magnons, as key carriers of spin angular momentum, enable spin transport without charge movement in magnetic insulators, thereby greatly reducing Joule heating in spintronic devices. Magnon-mediated spin torque (i.e., magnon torque) provides an alternative approach for efficient magnetization manipulation. However, magnon transmission through antiferromagnetic insulators still suffers from notable propagation losses, limiting the efficiency of magnon torque. Here, we fabricate high-quality epitaxial alpha-Fe2O3 thin films by magnetron sputtering that exhibit strong antiferromagnetic ordering, and successfully demonstrate highly efficient magnon transport and magnon torque in Pt/alpha-Fe2O3/NiFe devices at room temperature. It is observed that magnons propagate through a 20-nm-thick alpha-Fe2O3 layer with a significantly enhanced transmission efficiency of 75%, about 2.5 times higher than that in previously reported NiO-based magnonic devices. Consequently, a pronounced magnon torque is exerted on the adjacent ferromagnetic layer. Our work demonstrates that alpha-Fe2O3 is a promising antiferromagnetic material for efficient magnon channels, advancing the study of energy-efficient, high-speed magnonic devices.

Based on (2712.4 ± 14.3) × 106 ψ(3686) events collected at the BESIII detector operating at the BEPCII collider, we present the first observation of the decay $$ \psi (3686)\to {K}^{-}\Lambda (1520){\overline{\Xi}}^{+} $$ ψ 3686 → K − Λ 1520 Ξ ¯ + + c.c.. The product branching fraction $$ \mathcal{B}\left[\psi (3686)\to {K}^{-}\Lambda (1520){\overline{\Xi}}^{+}+\textrm{c}.\textrm{c}.\right]\times \mathcal{B}\left[\Lambda (1520)\to p{K}^{-}\right] $$ B ψ 3686 → K − Λ 1520 Ξ ¯ + + c . c . × B Λ 1520 → p K − is measured to be (9.47 ± 0.75 ± 0.97) × 10 −7, where the first uncertainty is statistical and the second systematic.

The strong-phase differences between $$ {D}^0\to {K}_{S(L)}^0{\pi}^{+}{\pi}^{-} $$ D 0 → K S L 0 π + π − and $$ {\overline{D}}^0\to {K}_{S(L)}^0{\pi}^{+}{\pi}^{-} $$ D ¯ 0 → K S L 0 π + π − decays are one of the most important inputs in measuring the CP violating angle γ via B − → DK − decays. They also play a key role in studies of charm mixing and indirect CP violation. In this paper, the strong-phase differences are determined in a model-independent way with quantum-correlated D 0- $$ {\overline{D}}^0 $$ D ¯ 0 decays from 7.93 fb −1 of e + e − annihilation data at $$ \sqrt{s} $$ s = 3.773 GeV by the BESIII experiment. These results are the most precise to date and are expected to significantly reduce associated uncertainties in determining the CP violating angle γ and related charm mixing parameters.

The anion-deficient layered perovskite Pb2Fe2O5, featuring a polarizable active Pb cation with lone pair electrons and a magnetically active transition metal Fe cation, presents a promising candidate for multiferroic applications. Nonetheless, the exploration of multiferroic properties and magnetoelectric coupling in Pb2Fe2O5 is extremely rare due to its complex structure. Herein, a colossal magnetoelectric coupling coefficient (5.19 × 105 mV cm-1 Oe-1), high ferroelectric polarization (2 μC/cm2), and magnetic moment (25 emu/cc) at room temperature have been discovered in an epitaxial Pb2+0.48Fe2O5 film. The findings of this study demonstrate that the introduction of excessive Pb ions can disrupt the disordered arrangement of the mixed layer and convert it to an ordered distribution to improve ferroelectric properties. This research not only enriches the magnetoelectric coupling material system but also offers a viable strategy for achieving strong room-temperature magnetoelectric coupling and multiferroicity in layered oxide materials.

Abstract Based on (10087 ± 44) × 106 J/ψ events recorded with the BESIII detector, we search for the rare charmonium weak decays J / ψ → D s − ρ + + c . c . $$ J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}. $$ and J / ψ → D s − π + + c . c . $$ J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}. $$ No signal is observed, and upper limits on the branching fractions at the 90% confidence level are set as B J / ψ → D s − ρ + + c . c . < 8.0 × 10 − 7 $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\rho}^{+}+\textrm{c}.\textrm{c}.\right)<8.0\times {10}^{-7} $$ and B J / ψ → D s − π + + c . c . < 4.1 × 10 − 7 $$ \mathcal{B}\left(J/\psi \to {D}_s^{-}{\pi}^{+}+\textrm{c}.\textrm{c}.\right)<4.1\times {10}^{-7} $$ . Our results provide the most stringent experimental constraints on these decays.

Using (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) candidates collected by the BESIII detector operating at the BEPCII storage ring, the decays $$ {\chi}_{cJ}\left(J=0,1,2\right)\to p\overline{p}\eta \eta $$ χ cJ J = 0 1 2 → p p ¯ ηη are observed for the first time through the radiative transition ψ (3686) → γχ cJ . The statistical significances for χ cJ signals are all larger than 5 σ . The branching fractions of $$ {\chi}_{c0,1,2}\to p\overline{p}\eta \eta $$ χ c 0 , 1 , 2 → p p ¯ ηη are determined to be (5 . 75 ± 0 . 59 ± 0 . 42) × 10 − 5 , (1 . 40 ± 0 . 33 ± 0 . 17) × 10 − 5 , and (2 . 64 ± 0 . 40 ± 0 . 27) × 10 − 5 , respectively, where the first uncertainties are statistical and the second systematic. No evident resonant structures are found in the $$ p\overline{p} $$ p p ¯ and $$ p\eta /\overline{p}\eta $$ pη / p ¯ η systems.

The emergence of magnetic order in two-dimensional materials has stimulated extensive efforts to identify air-stable, room-temperature ferromagnets for applications in spintronics, magnonics, and quantum information technologies. Yet, most candidates are hindered by low Curie temperature and limited environmental stability. Here, we report the synthesis of air-stable alpha-Fe2O3 nanosheets with single phase and precisely controlled thicknesses ranging from 10 nm to several hundred nanometers via chemical vapor deposition. Magnetic characterizations by magnetic force microscopy and magneto-optical Kerr effect measurements reveal robust room-temperature ferromagnetism, along with magnetic vortex structure. Furthermore, using scanning nitrogen-vacancy center microscopy, we quantitatively depict the spatial variation of the magnetic stray field across a magnetic domain wall at an unprecedented resolution. The precise sample synthesis, macroscopic magnetometry, and high-resolution quantum imaging in our work not only provide a comprehensive understanding of magnetism in hematite-based nanostructures but also pave the way for their integration into potential spintronics applications.