The exactly solvable Kitaev model on the honeycomb lattice has recently received
enormous attention linked to the hope of achieving novel spin-liquid states with …

The properties of transition metal compounds are largely determined by nontrivial interplay
of different degrees of freedom: charge, spin, lattice, and also orbital ones. Especially rich …

The interplay of spin–orbit coupling and Coulomb correlations has become a hot topic in
condensed matter theory and is especially important in 4d and 5d transition metal oxides …

Recently, the iridate double perovskite Sr 2 YIrO 6 has attracted considerable attention due
to the report of unexpected magnetism in this Ir 5+(5 d 4) material, in which according to the …

We report electron spin resonance (ESR) spectroscopy results on the double perovskite Ba
2 YIrO 6. On general grounds, this material is expected to be nonmagnetic due to the strong …

Motivated by several claims of spin-orbit-driven spin-liquid physics in hexagonal Ba 3 Ti 3− x
Ir x O 9 hosting Ir 2 O 9 dimers, we report on resonant inelastic x-ray scattering (RIXS) at the …

We report a comprehensive temperature-dependent investigation of the 1: 2 ordered triple
perovskite system Sr 3 Ca Ru 2 O 9. It crystallizes in the monoclinic structure with space …

Iridates with the 5 d 4 electronic configuration have attracted recent interest due to reports of
magnetically ordered ground states despite longstanding expectations that their strong spin …

While it was speculated that 5 d 4 systems would possess nonmagnetic J= 0 ground state
due to strong spin-orbit coupling (SOC), all such systems have invariably shown the …

Here, we report both ac and dc magnetization, thermodynamic, and electric properties of
hexagonal Ba 3 NiIr 2 O 9. Ni 2+(spin 1) forms a layered triangular lattice and interacts …