Condensed matter physics and materials science form a dynamic partnership, exploring how the collective behavior of atoms gives rise to the unique properties of solids and liquids. This field bridges the gap between fundamental quantum mechanics and the practical engineering of everything from flexible electronics to superconductors, turning abstract theories into tangible innovations that shape our daily lives.

At Gist.Science, we process every new preprint in this category directly from arXiv to make these complex discoveries accessible to everyone. Our team generates both plain-language overviews and detailed technical summaries for each paper, ensuring that researchers, students, and curious minds alike can grasp the latest breakthroughs without getting lost in dense jargon.

Below are the latest papers in condensed matter and materials science, organized by their most recent publication dates.

Engineering the Magnetocaloric Effect in NdT4T_4B

This study investigates the magnetocaloric effect in the tunable ferromagnetic kagome system NdT4T_4B (TT = Fe, Co, Ni), utilizing ternary phase diagrams to engineer a specific composition that maximizes magnetic entropy change across a broad temperature range (10–650 K) and exhibits potential for multi-stage cooling applications.

Kyle W. Fruhling, Enrique O. González Delgado, Siddharth Nandanwar, Xiaohan Yao, Zafer Turgut, Michael A. Susner, Fazel Tafti2026-04-29🔬 cond-mat.mtrl-sci

Diffusive and hydrodynamic magnetotransport around a density perturbation in a two-dimensional electron gas

This paper theoretically demonstrates that in a two-dimensional electron gas under a strong magnetic field, a density perturbation with a power-law tail creates a large "no-go" region of exponentially suppressed current and a rotated Landauer resistivity dipole outside it, with these effects being further modulated by electron viscosity.

P. S. Parashar, M. M. Fogler2026-04-29🔬 cond-mat.mes-hall

SPARSE -- Efficient High-Resolution SEM Imaging of Rare Microstructural Features Across Large Areas by Selective Rescanning

This paper introduces SPARSE, an open-source Python framework that significantly reduces the acquisition time for high-resolution SEM imaging of rare microstructural features across large areas by employing a two-stage approach that combines fast initial scanning with selective rescanning of identified regions of interest.

Tom Reclik, Jan Gerlach, Maximilian A. Wollenweber, Yannis P. Korkolis, Sandra Korte-Kerzel, Ulrich Kerzel2026-04-29🔬 physics.app-ph

Ultrafast Energy Absorption in Silicon Controlled by Two-Color Double Pulses

This theoretical study demonstrates that ultrafast energy absorption in crystalline silicon can be precisely controlled by two-color femtosecond double pulses, where the optimal wavelength combination and underlying excitation mechanisms shift from multiphoton interband absorption to tunneling ionization and intraband acceleration depending on the laser intensity regime.

Eiyu S. Gushiken, Mizuki Tani, Hiroki Katow, Kenichi L. Ishikawa2026-04-29✓ Author reviewed 🔬 cond-mat.mtrl-sci

Determination of the Fermi Energy of Diamond using Photoluminescence Spectral Analysis

This paper presents a method to determine the Fermi energy of diamond by analyzing the relative populations of nitrogen-vacancy (NV) and silicon-vacancy (SiV) center charge states via photoluminescence spectroscopy, leveraging density-functional-theory calculations to achieve high spatial and temporal resolution in various environments.

Yifan Song, Sina Ilkhani, Leah Webb, Helen Highland, Shunki Nakamura, Stephen B. Cronin, Susumu Takahashi2026-04-29🔬 cond-mat.mtrl-sci

Electric-field control of hydrogen bonding via interfacial charge at atomic resolution

Using low-temperature scanning tunneling microscopy and first-principles theory, researchers demonstrate that an external electric field can deterministically control hydrogen-bond networks in monolayer ice on graphite by redistributing interfacial charge, enabling reversible switching between wetting and non-wetting states, continuous lattice strain, and collective dipolar inversion.

Nassar Doudin, Jian Jiang, Chun Tang, Xiao Cheng Zeng, Mohammed Th. Hassan2026-04-29🔬 cond-mat.mtrl-sci

Identifying strong correlation using only the Kohn-Sham density of one-electron states

This article proposes that symmetry breaking in the non-interacting Kohn-Sham system can qualitatively explain strong correlation effects by lifting near-degenerate states and reducing the density of states at the Fermi level, thereby enabling the description of strongly correlated metals within standard DFT and introducing a correlation parameter (Γ\Gamma) to distinguish between strongly and normally correlated systems.

Daniel D. Rivera, Gustavo M. Dalpian, John P. Perdew2026-04-29🔬 cond-mat.mtrl-sci

Determination of Burgers vectors of dislocations in monoclinic β\beta-Ga2_2O3_3 crystals by large-angle convergent-beam electron diffraction

This study demonstrates that large-angle convergent-beam electron diffraction (LACBED), utilizing a dual lattice basis approach to bypass the need for a metric tensor, can effectively and unambiguously determine the Burgers vectors of dislocations in monoclinic β\beta-Ga2_2O3_3 crystals, with results validated by weak-beam dark-field imaging.

Yoshihiro Sugawara, Yongzhao Yao, Yukari Ishikawa2026-04-29🔬 cond-mat.mtrl-sci

From Ultrafast Demagnetization to Ultrafast Spintronics : a 30 years story

This paper reviews the 30-year evolution from the 1996 discovery of femtosecond laser-induced demagnetization to the emergence of ultrafast spintronics, highlighting how controlling angular momentum flow on femtosecond timescales enables energy-efficient, high-speed magnetization switching for next-generation information processing.

Quentin Remy (Université de Lorraine, CNRS, Institut Jean Lamour, Nancy, France, Department of Physics, Freie Universität Berlin, Berlin, Germany), Stéphane Mangin (Université de Lorraine, CNRS, Insti (…)2026-04-29🔬 cond-mat.mtrl-sci