2446 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 study reveals that the weak first-order melting of the charge density wave state in 2H-TaSe2 is driven by dislocations and fluctuations, evidenced by anomalous V-shaped thermal conductivity and persistent short-range lattice distortions up to 300 K.
This paper establishes a general design principle for achieving pure optical rotation in self-assembled chiral materials by utilizing energetic non-degeneracy between interacting chromophores to decouple circular birefringence from circular dichroism and absorption, a mechanism experimentally validated in mixed CdS magic-sized cluster assemblies and projected to enable high-performance, lithography-free chiral optical devices.
This paper presents a robust 3D tomography method that combines phase-shifting digital holography and max-flow/min-cut phase unwrapping to extract the accumulated exchange phase in Si/SiGe quantum dot devices, thereby overcoming measurement ambiguities to enable precise qubit control and device modeling.
This technical note aims to clarify current confusion and correct widespread errors in field electron emission literature by providing a high-level overview of modern theory to replace outdated models that significantly underpredict current densities.
By using molecular beam epitaxy and post-growth Te annealing to remove interstitial iron atoms, researchers demonstrated that stoichiometric FeTe is inherently a superconductor with a critical temperature of ~13.5 K, overturning the long-held view that it is an antiferromagnetic metal.
This paper presents a unified theoretical framework for spin-resolved electron transport in nanoscale magnetic point contacts that seamlessly bridges ballistic and diffusive limits without empirical fitting, revealing that magnetoresistance strongly depends on contact size and spin-asymmetry parameters, often decreasing with radius and potentially becoming negative, thereby highlighting the efficiency and application potential of these nanoscale devices.
This study demonstrates that deliberately introducing sulphur vacancies in WS-graphene heterostructures alters band alignment and doping, which prolongs electron lifetimes in WS but shortens the overall charge-separated state lifetime by facilitating ultrafast electron tunneling (~4 ps) from vacancy states into graphene's Dirac cone.
This paper predicts a superballistic radiative heat transport regime in dilute chains of plasmonic nanoparticles confined within cavities, where cavity-guided modes amplify long-range interactions to achieve a superlinear scaling of thermal conductivity that surpasses the traditional ballistic limit.
This paper identifies a uniform altermagnetic pseudogap phase in doped Mott insulators through expansion analysis, positioning it between antiferromagnetism and -wave superconductivity while suggesting its instability may lead to spin-charge liquids and quantum ordered states.
This study expands the topological phase diagram of twisted bilayer MoTe2 by experimentally observing multiple Chern-insulating states and a field-induced fractional Chern insulator at a large twist angle of approximately 4.54°, demonstrating that large-angle moire superlattices serve as a versatile platform for engineering robust topological states beyond the strong-correlation limit.