Beam Cross Sections Create Mixtures: Improving Feature Localization in Secondary Electron Imaging

This paper demonstrates that modeling secondary electron counts as a mixture distribution, rather than a simple convolution, enables a maximum likelihood estimator that achieves significant sub-pixel edge localization accuracy—reducing root mean-squared error by approximately five-fold compared to conventional methods in both simulations and real helium ion microscopy datasets.

Vaibhav Choudhary, Akshay Agarwal, Vivek K GoyalThu, 12 Ma🔬 cond-mat.mtrl-sci

How Semilocal Are Semilocal Density Functional Approximations? -Tackling Self-Interaction Error in One-Electron Systems

This study introduces a non-empirical meta-generalized gradient approximation (meta-GGA) incorporating the Laplacian of the electron density that significantly mitigates self-interaction error in the one-electron H2+H_2^+ system, yielding binding energy curves that outperform existing semilocal functionals like PBE and SCAN and closely match the exact solution.

Akilan Ramasamy, Lin Hou, Jorge Vega Bazantes, Tom J. P. Irons, Andrew M. Wibowo-Teale, Timo Lebeda, Jianwei SunThu, 12 Ma🔬 cond-mat.mtrl-sci

Neural Field Thermal Tomography: A Differentiable Physics Framework for Non-Destructive Evaluation

The paper introduces Neural Field Thermal Tomography (NeFTY), a differentiable physics framework that parameterizes 3D material diffusivity as a continuous neural field optimized via a rigorous numerical solver to achieve high-resolution, quantitative reconstruction of subsurface defects from transient surface temperature measurements, overcoming the limitations of traditional 1D approximations and soft-constrained PINNs.

Tao Zhong, Yixun Hu, Dongzhe Zheng, Aditya Sood, Christine Allen-BlanchetteThu, 12 Ma🔬 cond-mat.mtrl-sci

Dzyaloshinskii-Moriya-driven instabilities in square-kagome quantum antiferromagnets

By combining *ab initio* calculations with generalized Schwinger-boson mean-field theory, this study demonstrates that while exchange coupling to decorating sites stabilizes a gapped quantum-paramagnetic phase in the square-kagome antiferromagnet Na6_6Cu7_7BiO4_4(PO4_4)4_4Cl3_3, symmetry-allowed Dzyaloshinskii-Moriya interactions suppress the spinon gap and drive the system toward a magnetic instability.

Leonid S. Taran, Arnaud Ralko, Fedor V. Temnikov, Vladimir V. Mazurenko, Sergey V. Streltsov, Yasir IqbalThu, 12 Ma🔬 cond-mat.mtrl-sci

Commensurate-Incommensurate Transition in Submonolayer 3^3He on Graphite

High-precision heat-capacity measurements of submonolayer 3^3He on graphite reveal a second-order transition between two striped domain-wall phases below 1 K, where the melting of the fixed-spacing α2\alpha_2 phase into the variable-spacing α1\alpha_1 phase supports the existence of a quantum nematic state characterized by one-dimensional phonons.

A. Kumashita, J. Usami, S. Komatsu, Y. Yamane, S. Miyasaka, H. Fukuyama, A. YamaguchiThu, 12 Ma🔬 cond-mat.mtrl-sci

Ab-initio superfluid weight and superconducting penetration depth

This paper presents a computationally efficient framework for calculating the zero-temperature superfluid weight and magnetic penetration depth from first principles by separating conventional and quantum geometric contributions, thereby enabling large-scale screening of superconductors and validating the method against experimental data for conventional materials.

Kaja H. Hiorth, Martin Gutierrez-Amigo, Théo Cavignac, Kristjan Haule, Miguel A. L. Marques, Päivi TörmäThu, 12 Ma🔬 cond-mat.mtrl-sci

Nuclear Quantum Effects in Multi-Step Condensed Matter Chemistry: A Path Integral Molecular Dynamics Study of Thermal Decomposition

This study demonstrates that Path Integral Molecular Dynamics simulations reveal nuclear quantum effects significantly accelerate the thermal decomposition of the TATB crystal and lower its activation energy by approximately 8% compared to classical methods, while highlighting that the Quantum Thermal Bath approximation substantially overestimates these quantum acceleration effects.

Jalen Macatangay, Alejandro StrachanThu, 12 Ma🔬 cond-mat.mtrl-sci

Probing Quantum Anomalous Hall States in Twisted Bilayer WSe2 via Attractive Polaron Spectroscopy

This study provides the first direct evidence of a tunable Quantum Anomalous Hall state with spontaneous ferromagnetism in twisted bilayer WSe2 by utilizing polarization-resolved attractive polaron spectroscopy to observe time-reversal symmetry breaking and confirm a Chern number of C=1.

Beini Gao, Mahdi Ghafariasl, Mahmoud Jalali Mehrabad, Tsung-Sheng Huang, Lifu Zhang, Deric Session, Pranshoo Upadhyay, Rundong Ma, Ghadah Alshalan, Daniel Gustavo Suárez Forero, Supratik Sarkar, Suji Park, Houk Jang, Kenji Watanabe, Takashi Taniguchi, Ming Xie, You Zhou, Mohammad HafeziThu, 12 Ma🔬 cond-mat.mes-hall

Electronic Structure and Resonant Circular Dichroism of La0.7_{0.7}Sr0.3_{0.3}MnO3_3 from Soft X-ray Angle-Resolved Photoemission

This study utilizes soft X-ray angle-resolved photoemission spectroscopy to map the electronic band structure of a (111)-oriented La0.7_{0.7}Sr0.3_{0.3}MnO3_3 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.

Øyvind Finnseth, Damian Brzozowski, Anders Christian Mathisen, Stefanie Suzanne Brinkman, Xin Liang Tan, Fabian Gohler, Benjamin A. D. Williamson, Kristoffer Eggestad, Meng-Jie Huang, Jens Buck, Moritz Hoesch, Kai Rossnagel, Sverre M. Selbach, Hendrik Bentmann, Ingrid HallsteinsenThu, 12 Ma🔬 cond-mat.mtrl-sci

Emergence of multiple topological spin textures in an all-magnetic van der Waals heterostructure

Using a first-principles-based spin-spiral approach and atomistic spin models, this study predicts the emergence of diverse topological spin textures, including Néel-type skyrmions and bimerons, in an all-magnetic Fe3_3GeTe2_2/Cr2_2Ge2_2Te6_6 van der Waals heterostructure driven by interfacial Dzyaloshinskii-Moriya interactions and geometric exchange frustration.

Moritz A. Goerzen, Tim Drevelow, Hendrik Schrautzer, Soumyajyoti Haldar, Stefan Heinze, Dongzhe LiThu, 12 Ma🔬 cond-mat.mes-hall

Island Sliding Barriers: A first-principles metric for determining remote epitaxy viability

This paper utilizes first-principles calculations to demonstrate that the sliding barrier of small islands on a graphene-covered substrate, rather than electrostatic potential, serves as the most rigorous metric for predicting the viability of remote epitaxy, suggesting the phenomenon is governed by island migration kinetics.

Quinn T. Campbell, Manny Xavier de Jesus Lopez, Anthony Rice, Timothy J. Ruggles, Taisuke Ohta, Caitlin McCowan, Sadhvikas Addamane, Scott W. Schmucker, Justine KoepkeThu, 12 Ma🔬 cond-mat.mtrl-sci

Beyond spin-1/2: Multipolar spin-orbit coupling in noncentrosymmetric crystals with time-reversal symmetry

This paper develops a symmetry-adapted multipolar kp\mathbf{k}\cdot\mathbf{p} theory for noncentrosymmetric C3vC_{3v} crystals in the strong spin-orbit coupling limit, revealing that multipolar interactions for j>1/2j>1/2 reshape Fermi surfaces and create distinct total-angular-momentum textures that lead to nonmonotonic, enhanced Edelstein effects in heavy-element materials.

Masoud Bahari, Kristian Mæland, Carsten Timm, Björn TrauzettelThu, 12 Ma🔬 cond-mat.mes-hall

Long-range magnetic order with disordered spin orientations in a high-entropy antiferromagnet

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.

Yao Shen, Guangkai Zhang, Qinghua Zhang, Xuejuan Gui, Yu Zhang, Heemin Lee, Cheng-Tai Kuo, Jun-Sik Lee, Ronny Sutarto, Feng Ye, Zhao Pan, Xiaomei Qin, Jinchen Wang, Tianping Ying, Youwen LongThu, 12 Ma🔬 cond-mat

Importance of nonlinear long-range electron-phonon interaction on the carrier mobility of anharmonic halide perovskites

This study demonstrates that nonlinear long-range electron-phonon interactions significantly influence the finite-temperature carrier mobility of the anharmonic halide perovskite CsPbI3_3, altering its temperature scaling and contributing approximately 10% to the mobility at room temperature, thereby highlighting the necessity of including such effects in theoretical models of these materials.

Matthew Houtput, Ingvar Zappacosta, Serghei Klimin, Samuel Poncé, Jacques Tempere, Cesare FranchiniThu, 12 Ma🔬 cond-mat.mtrl-sci