2833 papers
Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.
Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.
Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.
This paper demonstrates an ultrafast, room-temperature method for generating and reading valley-polarized electron populations in bulk silicon and diamond using unidirectional intervalley scattering induced by linearly polarized infrared femtosecond pulses, paving the way for terahertz-frequency valleytronic devices compatible with existing silicon technology.
This paper proposes and theoretically validates a modular qubit architecture utilizing a two-dimensional omnidirectional shuttler to bypass valley-splitting minima in Si/SiGe quantum wells, thereby enabling high-fidelity all-to-all connectivity while avoiding detrimental valley-state excitations.
This study demonstrates that using step-terminated AlO substrates with high miscut angles effectively suppresses antiphase twin defects in epitaxial BiSe by guiding atomic step-edge nucleation, although this control diminishes as the film thickness increases due to overgrowth mechanisms.
This study demonstrates that ferroelectric polarization switching in an InSe/graphene heterostructure can reversibly control the sign of charge-to-spin conversion coefficients and manipulate in-plane spin textures, offering a promising platform for advanced spintronic devices.
This paper reports the successful synthesis and comprehensive characterization of halogen-terminated carbon atomic wires (halopolyynes) via pulsed laser ablation in halogenated organic solvents, demonstrating that halogen terminations act as auxochromes that extend conjugation and tune the electronic and optical properties of sp-carbon backbones.
This paper investigates the Sagnac and Mashhoon effects in rotating graphene systems, demonstrating that while the Sagnac fringe shift is governed by the electron's vacuum mass and acquires an additional -phase shift from the lattice's Berry phase, the Mashhoon fringe shift retains its conventional form dependent on the Fermi velocity.
This study demonstrates that atomistic substrate relaxation significantly modulates the primary and secondary band gaps of graphene on hexagonal boron nitride, reducing the zero-twist primary gap from ~30 meV to ~3 meV in rigid structures while revealing a maximum near 0.6° and a persistent ~1 meV gap across all twist angles that switches sign between 30° and 60°.
This study reveals that Néel skyrmions in altermagnets exhibit unique fourfold anisotropic dynamics and pinning behaviors, distinct from ferromagnetic skyrmions, due to the underlying sublattice symmetry and varying exchange constants, which can be effectively modeled by a particle approach capturing direction-dependent velocity and Hall angle variations.
This paper proposes a temporal magnon-qubit Mach-Zehnder interferometer that utilizes a pulsed magnetic field as a beam splitter to entangle microwave qubits and magnonic states, enabling the independent measurement of single magnon decoherence rates to advance fundamental quantum studies and applications.
This study demonstrates that a modified ligand-assisted reprecipitation (LARP) method, enhanced by amine-mediated size trimming and DDAB surface passivation, produces single CsPbBr3 perovskite quantum dots with state-of-the-art optical properties, including stable emission and high-purity single-photon generation, offering a milder and more flexible alternative to traditional hot-injection synthesis.