JPS Hot Topics

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.

This study clarifies the phase structure of the two-dimensional lattice CP(1) model with a θ term by employing the tensor renormalization group method and conformal field theory, thus enabling the circumvention of the sign problem and logarithmic corrections.

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.