Condensed matter is one of the most active areas of research in physics. Ev ery year new
materials are discovered with properties that are as challenging as or more than those of the …

Optical conductivity spectra of conducting oxides, cuprates, including high-Tc
superconductors, nickelates, manganites, doped titanates, barium–lead–bismuth oxides …

We investigated the electronic structures of the perovskite-type 4 d transition-metal oxides Sr
MO 3 (M= Zr, Mo, Ru, and Rh) using their optical conductivity spectra σ (ω). The interband …

The physics of ferromagnetic doped manganites, such as La 1-x Ca x MnO 3 with x≈ 0.2-
0.4, is reviewed. The concept of double exchange is discussed within the general framework …

We report measurements of the resistivity in the ferromagnetic state of epitaxial thin films of
La 1− x Ca x MnO 3 and the low-temperature specific heat of a polycrystalline La 0.8 Ca 0.2 …

We investigated the electronic structures of the bandwidth-controlled ruthenates, Y 2 Ru 2 O
7, CaRuO 3, SrRuO 3, and Bi 2 Ru 2 O 7, by optical conductivity analysis in a wide energy …

The optical conductivity spectra of the quasi-two-dimensional C a 2-x S rx R u O 4 (0.0≤ x≤
2.0) system were investigated. In the Mott insulating state, two electron correlation-induced …

Catalysis of the oxygen evolution reaction (OER) by earth-abundant materials in the near-
neutral pH regime is of great interest as it is the key reaction for non-fossil fuel production. To …

The electronic response of doped manganites at the transition from the paramagnetic
insulating to the ferromagnetic metallic state in La 1− x Ca x MnO 3 for x= 0.3 and 0.2 was …

We investigated the dielectric functions ε ̑ (ω) of Ir, Ru, Pt, and IrO 2, which are commonly
used as electrodes in ferroelectric thin-film applications. In particular, we investigated the …