Quantum spin liquids are an exciting playground for exotic physical phenomena and
emergent many-body quantum states. The realization and discovery of quantum spin liquid …

Following the early prediction of the skyrmion lattice (SkL)—a periodic array of spin vortices—
it has been observed recently in various magnetic crystals mostly with chiral structure …

Skyrmions are whirl-like topological spin objects with high potential for future magnetic data
storage. A fundamental question that is relevant to both basic research and application is …

Lacunar spinels with a chemical formula of AM 4 X 8 form a populous family of narrow‐gap
semiconductors, which offer a fertile ground to explore correlation and quantum …

Spin-orbit coupling of as large as a half eV for electrons in 5 d orbitals often gives rise to the
formation of spin-orbital entangled objects, with the effective total angular momentum J eff …

Electronic materials that exhibit phase transitions between metastable states (eg, metal-
insulator transition materials with abrupt electrical resistivity transformations) are challenging …

Transition-metal atoms with d electrons sometimes form clusters in crystals, which
significantly affect the physical properties. Such a cluster formation frequently accompanies …

The valence electronic structure of magnetic centers is one of the factors that determines the
characteristics of a magnet. This may refer to orbital degeneracy, as for j eff= 1/2 Kitaev …

A large body of knowledge about magnetism is attained from models of interacting spins,
which usually reside on magnetic ions. Proposals beyond the ionic picture are uncommon …

In the AB 4 Q 8 lacunar spinels, the electronic structure is described on the basis of inter-and
intracluster interactions of tetrahedral B 4 clusters, and tuning these can lead to myriad …