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.

A comparison of the spin-phonon behaviour of Fe2_2P-based magnetocaloric materials

This study investigates the spin-phonon behavior and magnetocaloric potential of Fe2_2P and FeMnP0.55_{0.55}Si0.45_{0.45} using magnetometry, neutron scattering, and theoretical modeling, revealing that the magnetic transitions are driven by distinct site-specific behaviors and uncorrelated magnetic processes at two length scales, which are well-supported by first-principles calculations.

Mikael S. Andersson, Simon R. Larsen, Erna K. Delczeg-Czirjak, Antonio Corona, Jacques Ollivier, Wiebke Lohstroh, Helen Y. Playford, Cheng Li, Pascale P. Deen, Johan Cedervall2026-04-02🔬 cond-mat.mtrl-sci

First principles study of thermoelectric properties of Nb2Co2InSb\text{Nb}_2\text{Co}_2\text{InSb} and Nb2Co2GaSb\text{Nb}_2\text{Co}_2\text{GaSb} double half-Heuslers

This study demonstrates that the double half-Heusler compounds Nb2Co2InSb\text{Nb}_2\text{Co}_2\text{InSb} and Nb2Co2GaSb\text{Nb}_2\text{Co}_2\text{GaSb} exhibit significantly reduced lattice thermal conductivity compared to the parent NbCoSn system due to mass disorder, positioning them as promising candidates for high-temperature thermoelectric applications.

Rajeev Ranjan2026-04-02🔬 cond-mat.mtrl-sci

Laser-generated CuPdAgPtAu High-Entropy Alloy Nanoparticles -- Thermal Segregation Threshold and Elemental Segregation

This study demonstrates that laser ablation in liquid kinetically stabilizes metastable, compositionally homogeneous CuPdAgPtAu high-entropy alloy nanoparticles that resist thermodynamically driven phase segregation until subsequent thermal treatment overcomes kinetic barriers to induce equilibrium Cu-Ag separation.

Felix Pohl, Robert Stuckert, Florent Calvo, Oleg Prymak, Christoph Rehbock, Ulrich Schürmann, Stephan Barcikowski, Lorenz Kienle2026-04-02🔬 cond-mat.mtrl-sci

Fractal hierarchy enables exponential scaling of topological boundary states

This paper introduces fractal-inspired lattices that combine long-range periodic order with self-similar hierarchy to enable the exponential scaling of topological boundary states and minigaps, a phenomenon theoretically explained by multi-topological-phase theory and experimentally verified in photonic lattices.

Limin Song, Zhichan Hu, Ziteng Wang, Domenico Bongiovanni, Liqin Tang, Daohong Song, Roberto Morandotti, Jingjun Xu, Hrvoje Buljan, Zhigang Chen2026-04-02🔬 physics.app-ph

Emergent superconductivity at 16.3 K in an altermagnetic candidate Na2x_{2-x}V2_2Se2_2O with broken inversion symmetry

This paper reports the discovery of superconductivity at a transition temperature of approximately 16.3 K in the newly synthesized, non-centrosymmetric layered compound Na2x_{2-x}V2_2Se2_2O, marking the first realization of superconductivity in an altermagnetic candidate and offering a promising platform for exploring exotic superconducting states and bridging high-temperature superconductor families.

Y. Sun, Z. Yin, T. Zhang, L. Wang, B. Ruan, Y. Huang, J. He, W. Zhu, M. Ma, J. Bai, J. Cheng, Q. Dong, C. Li, P. Liu, Q. Liu, C. Zhang, G. Chen2026-04-02🔬 cond-mat.mtrl-sci

Cryogenic stabilization of molecular hydrogen in dense cubic ice

This study demonstrates that dense, non-porous cubic ice can reversibly stabilize and retain molecular hydrogen as interstitial guests at near-ambient pressures and cryogenic temperatures, offering a new class of materials for hydrogen storage with densities comparable to metal hydrides.

Tomasz Por\k{e}ba, Leon Andriambariarijaona, Richard Gaal, Kazuki Komatsu, Gaston Garbarino, Thomas Hansen, Stanislav Savvin, Livia E. Bove2026-04-02🔬 cond-mat.mtrl-sci

Parameter-Efficient Fine-Tuning of Machine-Learning Interatomic Potentials for Phonon and Thermal Properties

This paper introduces Equitrain, a LoRA-based fine-tuning framework that significantly enhances the accuracy of machine-learning interatomic potentials for predicting phonon and thermal properties across diverse materials using minimal additional training data, outperforming both pretrained and scratch-trained models.

Jonas Grandel, Philipp Benner, Janine George2026-04-02🔬 cond-mat.mtrl-sci

A multiphysics model for triboelectric nanogenerator design with explicit surface roughness representation

This paper presents a multiphysics finite element framework that integrates exact surface roughness representations with mechanical contact and electrostatic simulations to accurately predict the performance of triboelectric nanogenerators, offering superior agreement with experimental data compared to traditional analytical models.

MD Tanzib Ehsan Sanglap, Jack Perris, Rudra Mukherjee, Charchit Kumar, Lukasz Kaczmarczyk, Chris J. Pearce, Daniel M. Mulvihill, Andrei G. Shvarts2026-04-02🔬 physics.app-ph

Bridging the Simulation-to-Experiment Gap with Generative Models using Adversarial Distribution Alignment

This paper proposes Adversarial Distribution Alignment (ADA), a domain-agnostic framework that bridges the simulation-to-experiment gap by pre-training a generative model on fully observed simulation data and then aligning it with partial experimental observations to recover the target observable distribution.

Kai Nelson, Tobias Kreiman, Sergey Levine, Aditi S. Krishnapriyan2026-04-02🧬 q-bio