JPS Hot Topics

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.

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.