We found a beautiful empirical rule (α ∝ η^-0.4) between the electrochemical Seebeck coefficient α for Fe²⁺/Fe³⁺ redox pair and viscosity coefficient η of the organic solvent.

Helium confined in a nanoporous material shows a four dimensional superfluid transition. This is a unique example of four dimensional critical phenomenon caused by strong quantum fluctuation.

Cryogenic Lorentz transmission electron microscopy directly shows that vortex and antivortex pairs emerge in a quasi-two-dimensional ferromagnet K₂CuF₄. This work may reveal the nature of Berezinskii, Kosterlitz, and Thouless phase transition in a magnetic system.

A researcher has developed a new theory to describe the Brownian motion of a small object that is confined in a fluctuating random surface.

We have demonstrated the power of machine learning in representing quantum many-body states accurately. We have extended the applicability of neural-network wave functions and shown their usefulness in fermion-boson-coupled systems and excited-state calculations.

Comprehensive curated reviews by researchers on the latest research in hydrogen-related applications, including proton conductors, superconductivity, electrochemistry with hydrides, and more.

Reviews on the most recent advances in hydrogen science, including cutting-edge fundamental studies in condensed matter physics with hydrogen-containing materials.