JPS Hot Topics

Discovery of Unconventional Pressure-Induced Superconductivity in CrAs

A new study has discovered pressure-induced superconductivity in the helimagnet CrAs, originating in the vicinity of the helimagnetic ordering, representing the first example of superconductivity in Cr-based magnetic systems.

Superconductivity

Electronic transport in condensed matter

Unification of Spin Helicity in the Magnetic Skyrmion Lattice of EuNiGe₃

In the magnetic skyrmion lattice of non-centrosymmetric EuNiGe₃, the original magnetic helicity, determined by the antisymmetric exchange interaction, is reversed, resulting in a unified helicity.

Magnetic properties in condensed matter

Having a Good Friend around Makes Life Better

It is true that having a good friend around makes life better, and this idea is also true in the quantum world.

Cross-disciplinary physics and related areas of science and technology

Antiferromagnetism Induces Dissipationless Transverse Conductivity

An investigation using high-quality NbMnP crystals demonstrates that the anomalous Hall conductivity arising from antiferromagnetism is dissipationless, as expected from the intrinsic mechanism.

Electronic transport in condensed matter

Magnetic properties in condensed matter

Electronic structure and electrical properties of surfaces and nanostructures

d² Trimer and d³ Tetramer in a Pyrochlore Lattice

Based on the charge disproportionation of V³⁺ and V²⁺, the V³⁺(d²) trimers and V²⁺(d³) tetramers in the vanadium pyrochlore lattice of AlV₂O₄ are described by the orbitally-induced Peierls mechanism.

Dielectric, optical, and other properties in condensed matter

Electron states in condensed matter

Structural Rotation and Falsely Chiral Antiferromagnetism: A New Combination Generating Ferrotoroidic State

The ferrotoroidic state, an exotic state of matter with broken space inversion and time-reversal symmetries, was achieved by combining structural rotation and falsely chiral antiferromagnetism in PbMn₂Ni₆Te₃O₁₈.

Magnetic properties in condensed matter

Dielectric, optical, and other properties in condensed matter

Understanding Electronic Ordering and Cross Correlations with Multipole Representation

This study reviews the recent advancements in research of multipole representations for understanding electronic orderings and cross-correlations in materials and presents future research directions.

Magnetic properties in condensed matter

Evaluation of the Exchange Stiffness Constants of Itinerant Magnets from the First-Principles Calculations

Using first-principles calculations, we evaluated the exchange stiffness constants of ferromagnetic metals at finite temperatures. The constants can be used as parameters in the Landau–Lifshitz–Gilbert equation.

Electron states in condensed matter

Structure and mechanical and thermal properties in condensed matter

Microscopic Exploration of Electronic States in Nickelate Superconductors

The multilayered nickelates, La₃Ni₂O₇ and La₄Ni₃O₁₀ , were investigated using nuclear magnetic resonance (NMR) at ambient pressure. Metallic electronic states under the density wave order were observed microscopically for both compounds.

Magnetic properties in condensed matter

Superconductivity

Single-Crystal Growth of a Cuprate Superconductor with the Highest Critical Temperature

Millimeter-sized single crystals of a trilayer cuprate superconductor (Hg,Re)Ba₂Ca₂Cu₃O_8+δ that exhibits the highest superconducting transition temperature under ambient pressure, were grown reproducibly and safely.

Superconductivity