We review the recent advances and current challenges in the field of strong spin-orbit
coupled Kitaev materials, with a particular emphasis on the physics beyond the exactly …

A Majorana fermion is a fermionic particle that is its own antiparticle. Since the theoretical
discovery by Ettore Majorana in 1937, the exotic particle has long been searched in particle …

Quantum spin liquids (QSLs) form an extremely unusual magnetic state in which the spins
are highly correlated and fluctuate coherently down to the lowest temperatures, but without …

The spin S= 1 2 Kitaev honeycomb model has attracted significant attention since emerging
candidate materials have provided a playground to test non-Abelian anyons. The Kitaev …

Ferromagnetism in two-dimensional CrI 3 has generated a lot of excitement, and it was
recently proposed that the spin-orbit coupling (SOC) in iodine may generate bond …

Abstract The S= 3/2 Kitaev honeycomb model (KHM) is a quantum spin liquid (QSL) state
coupled to a static Z2 gauge field. Employing an SO (6) Majorana representation of …

Multipolar spin systems provide a rich ground for the emergence of unexpected states of
matter due to their enlarged spin degree of freedom. In this study, with a specific emphasis …

The higher spin Kitaev model prominently features the extensive locally conserved
quantities the same as the spin-1/2 Kitaev honeycomb model, although it is not exactly …

Besides the exactly solvable spin-1/2 Kitaev model, higher spin-S ones, not exactly solvable,
are promising playgrounds for researches on the quantum spin liquid as well. One of the …

The higher-spin Kitaev magnets, in which the Kitaev interaction and off-diagonal exchange
couplings are overwhelmingly large, have emerged as a fertile avenue to explore exotic …