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 …

Complex oxides with 4 d and 5 d transition-metal ions recently emerged as a new paradigm
in correlated electron physics, due to the interplay between spin–orbit coupling and electron …

Magnetic anisotropy is crucially important for the stabilization of two-dimensional (2D)
magnetism, which is rare in nature but highly desirable in spintronics and for advancing …

We study the exchange interactions and resulting magnetic phases in the honeycomb
cobaltates. For a broad range of trigonal crystal fields acting on Co 2+ ions, the low-energy …

Co 2+ ions in an octahedral crystal field stabilize aj eff= 1/2 ground state with an orbital
degree of freedom and have been recently put forward for realizing Kitaev interactions, a …

The current efforts to find the materials hosting Kitaev model physics have been focused on
Mott insulators of d 5 pseudospin-1/2 ions Ir 4+ and Ru 3+ with t 2 g 5 (S= 1/2, L= 1) …

Recently, Co-based honeycomb magnets have been proposed as promising candidate
materials to host the Kitaev spin liquid (KSL) state. One of the front-runners is BaCo2 (AsO4) …

Quantum spin liquids (QSLs) are topologically ordered states of matter that host
fractionalized excitations. A particular route towards a QSL is via strongly bond-dependent …

Spin-orbit coupled honeycomb magnets with the Kitaev interaction have received a lot of
attention due to their potential of hosting exotic quantum states including quantum spin …

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 …