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 …

Strong electronic correlations are often associated with the proximity of a Mott-insulating
state. In recent years however, it has become increasingly clear that the Hund's rule …

We show that in multiband metals the correlations are strongly affected by Hund's rule
coupling, which depending on the filling promotes metallic, insulating or bad-metallic …

Sr 2 IrO 4 has the K 2 NiF 4 structure and its Ir 4+ ion (5 d 5) is in a low spin configuration t 2
g 5 with S= 1 2. In this paper, we report results of our study on single-crystal Sr 2 IrO 4 …

We have revealed the phase diagram of Ca 2− x Sr x RuO 4: the quasi-two-dimensional Mott
transition system that connects the Mott insulator Ca 2 RuO 4 with the spin-triplet …

The crystal and magnetic structure of Ca 2 RuO 4 (CRO) has been studied by powder
neutron diffraction. CRO was synthesized in two different modifications (stoichiometric and …

The phase diagram of Ca 2− x Sr x RuO 4 has been studied by neutron diffraction on
powder and single-crystalline samples. The experiments reveal antiferromagnetic order and …

We report a first-order phase transition at TM= 357 K in single-crystal Ca 2 RuO 4, an
isomorph to the superconductor Sr 2 RuO 4. The discontinuous decrease in electrical …

We report magnetic and transport properties of single-crystal Sr 3 Ir 2 O 7, a bilayered
orthorhombic system with Bbca symmetry. Our study reveals that Sr 3 Ir 2 O 7 is a …

We show that the pressure-temperature phase diagram of the Mott insulator Ca 2 RuO 4
features a metal-insulator transition at 0.5 GPa: at 300 K from paramagnetic insulator to …