An overview of quantum phase transitions (QPTs) in metallic ferromagnets, discussing both
experimental and theoretical aspects, is given. These QPTs can be classified with respect to …

The perovskites and perovskite-related structures exhibit several features of technical as
well as fundamental interest. Technically useful properties include oxide-ion conduction …

We show that single-crystalline Sr 3 Ru 2 O 7 grown by a floating-zone technique is an
isotropic paramagnet and a quasi-two-dimensional metal, as spin-triplet superconducting Sr …

The cubic perovskite BaRuO3 has been synthesized under 18 GPa at 1,000° C. Rietveld
refinement indicates that the new compound has a stretched Ru–O bond. The cubic …

Quantum phase transitions (QPTs) at zero temperature are generally studied by means of
pressure or composition tuning. Volume-integrated probes such as neutron and …

Heterostructures of complex transition metal oxides are known to induce extraordinary
emergent quantum states that arise from broken symmetry and other discontinuities at …

The evolution between Fermi-liquid and non-Fermi-liquid states in correlated electron
systems has been a central subject in condensed matter physics because of the coupled …

The magnetic ground state of perovskite structure CaRuO 3 has been enigmatic for
decades. Here we show that paramagnetic CaRuO 3 can be made ferromagnetic by very …

Optical conductivity spectra σ 1 (ω) of paramagnetic CaRuO 3 are investigated at various
temperatures. At T= 10 K, it shows a non-Fermi-liquid behavior of σ 1 (ω)∼ 1/ω 1/2, similar to …

In continuation of the series of perovskite oxides that includes 3d4 cubic BaFeO3 and 4d4
cubic BaRuO3, 5d4 cubic BaOsO3 was synthesized by a solid-state reaction at a pressure of …