The Kitaev model is an exactly solvable S= 1/2 spin model on a 2D honeycomb lattice, in
which the spins fractionalize into Majorana fermions and form a topological quantum spin …

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 …

In transition-metal compounds with partially filled 4 d and 5 d shells spin–orbit
entanglement, electronic correlations, and crystal-field effects conspire to give rise to a …

Quantum fluctuations can inhibit long-range ordering in frustrated magnets and potentially
lead to quantum spin liquid (QSL) phases. A prime example are gapless QSLs with …

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 …

The 5 d-electron honeycomb compound H 3 LiIr 2 O 6 [K. Kitagawa et al., Nature (London)
554, 341 (2018) NATUAS 0028-0836 10.1038/nature25482] exhibits an apparent quantum …

A vison is an excitation of the Kitaev spin liquid which carries a Z 2 gauge flux. While
immobile in the pure Kitaev model, it becomes a dynamical degree of freedom in the …

The S= 3 2 Kitaev honeycomb model (KHM) is unique among the spin-S Kitaev models due
to a massive ground-state quasidegeneracy that hampered previous numerical and …

Two-dimensional coherent terahertz spectroscopy (2DCS) emerges as a valuable tool to
probe the nature, couplings, and lifetimes of excitations in quantum materials. It thus …