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.

Discovery of new superheavy elements require beams beyond the emblematic Calcium-48. Intense titanium-50 beams open a new route used in the present tentative synthesis of oganesson (Z=118).

A novel synergy between an active matter model and a machine learning algorithm has been discovered, revealing the possibility of new phases in active matter.

This study explores dimensionality reduction in fluid dynamics using “autoencoder”, a nonlinear machine learning method, to represent complex flows with fewer variables and more efficiently than with traditional linear techniques.  

We theoretically demonstrate the emergence of finite-momentum superconductivity in a two-dimensional altermagnet with Rashba-type spin–orbit coupling (RSOC), where anisotropic deformations of the Fermi surfaces stabilize this unconventional superconducting state.

This article explores recent developments in electromagnons, which are terahertz excitations in spin-spiral multiferroics. Learn how spin-driven ferroelectricity enables nonreciprocal optical effects and offers new possibilities for terahertz technologies.

A softening phenomenon below 1 K was discovered in diamond, the hardest known material, suggesting the presence of a hidden quantum ground state with electric quadrupolar degrees of freedom arising from lattice defects.

”Second-order fringes” rings a bell? ”Which-path” echoes a quantum sequel?
”Spoofing decoherence” sounds like a plan? All this is not about photons, actu-
ally. Fast forward, and let the answer reveal itself soon.  Oops, too loud?

Ferroaxial domains were visualized in the glaserite-type compound Na₂BaM(PO₄)₂ (M = divalent metal) using the linear electrogyration effect with polarization microscopy combined with a field-modulation imaging technique.

The coupled dynamics between quantum turbulence and normal-fluid turbulence is investigated via advanced numerical simulations. Our simulations show that quantum turbulence can be enhanced by normal-fluid turbulence through internal mutual friction.

Ion gating on the surface of the Mott insulator Ca₂RuO₄ induces the progression of metallisation into the bulk interior without the influence of the current flow.

A magnetic shape memory effect, easy magnetization axis switching accompanied by crystallographic axis conversion, has been discovered in a heavy electron system CeSb_₂.

This study shows electrons interact with chiral phonons via crystal angular momentum, revealing a new angular momentum transfer mechanism and advancing quantum dynamics understanding in chiral materials.

The superconducting diode effect is proposed for a three-terminal semiconductor double-quantum-dot device. This effect is considerably enhanced by the Dirac-point singularities in the superconducting phase space.

In bilayer materials, moiré patterns reduce the phonon velocity, thus reducing the overall thermal conductivity, with a characteristic temperature dependence, at low temperatures.

We discovered an anomalous quantum state in which electric conduction exhibits a gapped behavior exclusively in one direction, in the quantum limit of the BiSb alloy under strong magnetic fields.

Even in dense colloidal suspensions, where long-range hydrodynamic interactions are screened, near-field hydrodynamic interactions qualitatively influence the selection of kinetic pathways.

Our study examines the magnetic structure of the monoaxial chiral helimagnet Yb(Ni_1-xCu_x)₃Al₉, providing first direct evidence of the formation of chiral soliton lattice state.

This study presents an innovative method to address the problem of phase transitions in quantum annealing, resulting in an exponential speedup of the process.