490 papers
This perspective paper summarizes a 2024 workshop on atom probe tomography, highlighting recent advances in understanding field evaporation physics to address data artifacts while emphasizing the urgent need for standardized, reproducible workflows across all stages of APT research to ensure reliable data interpretation.
This paper presents a highly efficient, portable hybrid MPI-GPU-OpenMP framework for the EPW code that enables scalable electron-phonon physics calculations on exascale supercomputers, achieving up to a 29-fold speedup and solving previously intractable large-scale problems like 20nm stanene nanoribbons.
This study reveals that a high-entropy antiferromagnet, (Mn1/4Fe1/4Co1/4Ni1/4)PS3, sustains long-range zigzag magnetic order below 72 K despite significant atomic disorder, where all four transition-metal elements undergo a unified phase transition but maintain distinct spin orientations due to the competition between single-ion anisotropies and exchange interactions.
This paper reveals that while linear polarization waves exert no net force on ferroelectric domain walls, intrinsic nonlinearities generate a negative radiation pressure that pulls the walls toward the source, offering a novel mechanism for controlling domain walls via optical or thermal excitation for memory and logic applications.
This perspective reviews the current landscape of predicted versus synthesized two-dimensional materials, highlighting the gap between theory and experiment while introducing recent advancements in predicting the synthesis of non-van der Waals 2D materials beyond traditional geometrical screening.
This study utilizes FIB tomography to reveal that while tin-deficient regions are more prevalent in Nb3Sn thin films than previously thought, their location beneath the surface suggests they are unlikely to be the primary cause of the limited accelerating gradient in superconducting radiofrequency cavities.
This study employs group representation theory to systematically classify the electronic bands and derive optical selection rules for a square-lattice ZnPc-MOF, revealing unique polarization-dependent optical responses and distinct quasicrystalline electronic states in twisted bilayers that differ significantly from hexagonal systems like graphene.
This study demonstrates that the half-Heusler topological semimetal DyPtBi simultaneously exhibits large longitudinal and transverse magnetothermopowers at practical temperatures and magnetic fields, overcoming the conventional trade-off through an ambipolar effect driven by imperfect electron-hole compensation and band structure engineering.
This paper introduces a universal, first-principles electronegativity scale based on the atomic mean inner potential (AMIP) that not only aligns with established trends and bonding classifications but also outperforms existing methods in predicting Lewis acid strengths and -ray annihilation spectral widths across diverse chemical systems.
This study demonstrates that high-energy electron irradiation can shift the Fermi level of the half-Heusler Weyl semimetal GdPtBi by 100 meV while preserving the negative longitudinal magnetoresistance indicative of chiral magnetic anomaly, thereby confirming the robust influence of Weyl nodes on magnetotransport properties regardless of Fermi level position.
This paper presents a machine learning-based workflow that predicts volume changes in battery electrode materials upon ion intercalation using atomic-level features, enabling the efficient high-throughput screening of over 1.1 million transition-metal oxides and fluorides to identify promising candidates for further DFT validation.
This paper presents a low-loss programmable mode converter based on the phase-change material Sb2Se3, which leverages refractive index contrast to achieve 5-bit precision and scalable photonic tensor cores for neuromorphic computing while overcoming the high optical loss limitations of conventional GST-based devices.
This study utilizes spectroscopic imaging ellipsometry and Mueller-matrix analysis to map the full dielectric tensor of paramagnetic CrSBr thin films, revealing pronounced optical anisotropy characterized by distinct excitonic resonances along the crystallographic axes that are crucial for future spin-optoelectronic applications.
This paper theoretically determines the ground-state phase diagram of rare-earth based 1/1 periodic approximants to icosahedral quasicrystals, revealing eight stabilized non-collinear and non-coplanar magnetic structures with specific space groups and topological properties that explain experimental observations.
This study utilizes soft X-ray angle-resolved photoemission spectroscopy to map the electronic band structure of a (111)-oriented LaSrMnO thin film, confirming theoretical predictions and demonstrating pronounced momentum-resolved magnetic circular dichroism at the Mn L-edge as a powerful tool for investigating unconventional magnetism.
This paper demonstrates that atomic force nanolithography can precisely engineer tunable in-plane uniaxial magnetic anisotropy in permalloy films by creating nanoscale groove arrays, enabling controlled domain manipulation for applications in magnonic elements and anisotropic magnetoresistance sensors.
By combining scanning tunneling microscopy, critical scaling analysis, and magnetocaloric measurements, this study demonstrates that structural layering in MnBiTe compounds fundamentally governs their magnetic critical fluctuations and magnetocaloric responses, with MnBiTe exhibiting robust 3D Ising-like criticality and dual-type magnetocaloric effects, while MnBiTe displays crossover-dominated criticality and conventional magnetocaloric behavior due to weakened interlayer exchange.
This paper proposes and validates a simplified, trajectory-dependent local model for electronic stopping of light ions (hydrogen and helium) in tungsten, demonstrating its efficiency and physical transparency over complex tensorial formulations for atomistic simulations of energy dissipation.
This paper demonstrates that by employing rapid scans, multi-stage registration, and probe aberration-compensated position correction, atomic-resolution STEM imaging and ptychography can be reliably achieved at cryogenic temperatures (as low as 20 K) to directly visualize the structural ground states of quantum materials.
This paper demonstrates a fast and reconfigurable method for programming in-plane hyperbolic phonon polariton optics by using optical laser pulses to create tailored launching and confining nanostructures in the phase-change material In3SbTe2 beneath α-MoO3 flakes, enabling precise alignment and dynamic control of polariton propagation without time-consuming conventional nanofabrication.