Rods with periodic surface corrugations stack helicoidally at only a discrete set of pitch angles. This rule opens a route for programming the fiber-stacking angle based on fiber surface texture.

The Reverse RKKY mechanism drives a twofold reversal, yielding an anomalous specific‑heat peak with a large, induced critical exponent.

This study reports the direct observation of piezoelectricity in the spin-orbit-coupled metal Cd₂Re₂O₇. The findings reveal how electric toroidal quadrupole order drives successive inversion-symmetry-breaking transitions and anisotropic electromechanical responses.

Deuteron breakup enhances one-proton knockout, whereas stronger nuclear absorption suppresses it. This explains why the measured deuteron/proton cross-section ratio is about 1.5, much lower than the naive expectation of 4.

The initial slope method is used to reveal intrinsic electronic specific heat by eliminating the overwhelming nuclear contributions during low-temperature calorimetry, opening a new window into quantum materials.

The ytterbium-based semiconductor ZnYb₂S₄ exhibits ferromagnetic order with contracted Yb moments, representing a novel quantum ground state attributed to competing exchange interactions in an effective spin-1/2 frustrated sawtooth chain.

Two isolated cardiomyocytes (heart muscle cells) can synchronize through deformations of a soft substrate. A dynamical theory explains geometry-dependent phase-locking and synchronization time.

Holonomy measures how local optical directions fail to return to their original orientation after a closed loop, revealing hidden electromechanical structures in stress-induced ferroelectric SrTiO₃.

Recent precise NMR measurements on the heavy-fermion superconductor UBe₁₃ provided “smoking-gun” evidence for a fully-gapped spin-triplet superconducting state, opening a new chapter in the field.

This study proposes an SIS competition model that integrates rumor spread and opinion changes. This analysis reveals novel mechanisms for conflicting rumor coexistence, thus demonstrating that rumors paradoxically survive through low transmissibility.

This study reveals the early-stage dynamics of ultrasonic cavitation using a record 100-billion-atom simulation to capture bubble nucleation, growth, clustering, and periodic splitting under nonequilibrium conditions.

A minimal lattice model revealed that topological defects with winding number +1 serve as nucleation sites for phase separation in active matter systems.

This review from the Journal of the Physical Society of Japan examines how artificial intelligence overcomes traditional materials science bottlenecks, highlighting the shift from intuition-based discovery to data-driven innovation.

TbNiC₂ exhibits negative magnetization. A new mechanism, based on the coupling between the charge density wave and the antiferromagnetic order, is proposed to account for this peculiar phenomenon.

Although the Einstein–de Haas (EdH) effect describes material rotation in a magnetic field, a thermal EdH effect, driven by a temperature gradient, remains unobserved. Recently, chiral carbon nanotubes were theoretically proposed as promising candidates to observe it.

Electrically driven liquid-crystal turbulence generates self-sustained flow and negative apparent viscosity. The fluorinated, chemically robust nematic PPDFB shows a substantially larger negative-viscosity effect than Schiff-base nematics.

Magnetic neutron scattering holography (MNH) were performed on a Fe_0.08Co_0.92 single crystal. The resulting holograms provided the first experimental evidence that MNH is sensitive to magnetic signals.

This study investigates high-rank multipole physics in f-electron systems, providing the first clear experimental evidence for field-induced switching of ferro-quadrupole order in a non-Kramer ion system, along with a new conceptual framework

In many energy devices, electron transfer occurs between ions dissolved in the electrolyte and the electrodes. For keep current flowing, new ions must be supplied continuously to the electrode surface from the bulk region. The diffusion layer’s role in diffusive mass transfer was clarified using the rotating disk electrode method.

We present a Bayesian framework for angle-resolved hard X-ray photoelectron spectroscopy (AR-HAXPES), combining Replica Exchange Monte Carlo with hierarchical integration to objectively and precisely estimate thin-film thickness.

A theoretical framework was developed to describe nonequilibrium electron distributions across the ballistic, diffusive, and local equilibrium transport regimes in voltage-biased nanowires in a unified manner.

Using high-quality UTe₂ (T_c = 2.1 K), we identify its nodal gap structure. Field-angle‑resolved specific‑heat reveals a b-axis singularity, supporting spin-triplet superconductivity with nodes along the b axis.

An effective model based on magnetic anisotropy arising from a crystalline electric field is constructed for icosahedral approximants, which not only explains measured ferromagnets and antiferromagnets but also reveals new types of noncollinear magnetic orders.

Researchers at the Institute for Molecular Science (IMS) have utilized a cutting-edge Photoelectron Momentum Microscope (PMM) at the UVSOR Synchrotron Facility to settle a two-decade-long controversy concerning the direction of electron spin on the Au(111) surface. This study provides a definitive, full-map, comprehensive reference for quantum imaging that is essential for advancing spintronics technology.

RIKEN discovered seven neutron-rich isotopes in the rare-earth region, pushing the nuclear landscape frontier toward an astrophysical r-process path. RIKEN discovered over 200 isotopes using in-flight separation.

This study shows how quantum fluctuations can stabilize droplets in the Bose-Einstein condensates consisting of strong magnetic dipolar interactions using path-integral Monte Carlo method, explaining past experimental observations.

Chiral crystals host phonons with intrinsic angular momentum, whose quantization and energy splitting reflect the lattice chirality and reveal the microscopic features of interatomic interactions.

The discovery of the topological Hall effect in a praseodymium-based compound is significant because its magnetism is not limited to a simple spin-only configuration as in many previous rare-earth systems.

We developed a new topological data analysis method to objectively identify the cardiac vortex structures. The method provides robust quantitative metrics for advancing cardiovascular diagnostics.

Tsunami-like solitons propagating over rocky-desert-like disordered backgrounds have been identified in a novel soliton equation derived from the theory of parity-mixed superconductivity.

Highly a-axis oriented Ce_0.75Sm_0.25O_2-δ thin film fabricated on a yttria-stabilized zirconia substrate achieved oxide superionic conductivity, which can apply as an electrolyte in solid oxide fuel cells operating at medium temperature.

An investigation of a Fe spin ladder system using angle-resolved photoemission spectroscopy revealed a novel type of magnetic band splitting resembling that in altermagnets.

The statistical physics analysis of learning parametric models was revisited by combining the replica method with a grand canonical ensemble and variational approach, enabling prediction error estimation for learning systems with real data.

This study developed a first-principles tight-binding framework that systematically evaluates higher-order spin interactions to enable the quantitative analysis and design of complex magnetic properties in materials.

In high-field ESR measurements, the quantum phase transition in the S = 1/2 one-dimensional Ising-like antiferromagnet, driven by transverse magnetic fields, is strongly related to the softening of the spinon excitation.

Topochemical exchange converts Li₂CoTi₃O₈ into metastable Co₂Ti₃O₈ with a diamond network, showing strong J₁–J₂ frustration, T_N near 4.4 K, and four magnetization steps up to 50 T.

Nanodiamonds containing nitrogen-vacancy centers can be used to map pressure and nonhydrostatic stress inside diamond anvil cells to obtain micron-scale pressure landscapes that clarify local conditions affecting high-pressure materials research.

This Special Topics edition of the Journal of the Physical Society of Japan discusses the recent progress and future directions for the rapidly progressing field of photodriven quantum spin systems.

The proposed hybrid quantum-classical computing method enables practical calculations of quasiparticle band structures to expand the possibilities for quantum materials research.

The special topics edition of the Journal of the Physical Society of Japan presents five new review articles offering cutting-edge information on the emerging field of topological photonics.

We demonstrate a new type of magnetoelectric effect in the pyroelectric ferrimagnet CaBaCo₄O₇—modulating its phase stability depending on the relative direction between the electric field and its electric polarization, enabling new material design strategies.

This work provides the first observation of the superconducting gap in molecular superconductors and their gap symmetry using photoemission spectroscopy, which will significantly accelerate the study of molecular conductors.

Encoding fracture physics in neural networks provides fast and accurate estimates of the distribution of fragment sizes in shrinkage-induced cracking and facilitates Bayesian analysis for a deeper physical understanding of fractures.

We quantitatively elucidated for the first time the electronic polarization structure in epitaxial YbFe₂O₄ thin films by measuring the angle dependence of second-order nonlinear optical signals.

Phonon-induced current noise in carbon nanotubes shows multiple resonance peaks in the high-frequency regime, some of which cannot be explained solely by energy and momentum conservation or by harmonic selection rules. These findings highlight nontrivial electron–anharmonic phonon interactions governing quantum transport in carbon nanotubes.

Jewel beetles enhance their dazzling iridescence by appropriately adjusting the thickness of the surface layers in their natural multilayer reflectors, thereby achieving constructive optical interference.

This work provides a theoretical demonstration of piezomagnetic effects in an organic altermagnet, arising from strain-induced asymmetries in exchange interactions and orbital degrees of freedom, thereby revealing new opportunities for organic spintronics.

A newly discovered phase in layered organic conductors exhibits enhanced magnetic susceptibility, indicating two-dimensional charge ordering, which is distinct from both the charge-glass and three-dimensional charge-ordered phases.

This review explores recent experimental advances in the emerging field of orbitronics, focusing on orbital current mechanisms and orbitronic phenomena, providing key research directions for developing energy-efficient memory devices.

Antisite defects in Fe_₂VAl create resonance states that boost hole scattering, which shifts carrier dominance to electrons and reverses thermoelectric polarity, thereby offering a new path for material design.