We have investigated charge dynamics and electronic structures for single crystals of metallic layered nickelates, R(2-x)Sr(x)NiO4 (R = Nd, Eu), isostructural to La(2-x)Sr(x)CuO4. Angle-resolved photoemission spectroscopy on the barely metallic Eu(0.9)Sr(1.1)NiO4 (R = Eu, x = 1.1) has revealed a large hole surface of x2-y2 character with a high-energy pseudogap of the same symmetry and comparab...

Abstract. The radiogenic isotope compositions of strontium (Sr) and neodymium (Nd) on the surface Earth are powerful tools for tracing dust sources sinks Earth's surface. To differentiate between spatial variabilities in eolian key cryospheric regions at three poles (the Arctic; Antarctica; “third pole”, covering high mountainous area Asia), a dataset Sr–Nd isotopic from extremely cold or arid ...

The effect of base temperature variation on the heat transfer from unsteady state annular heat sink of cooling microelectronic device. Three types of the base temperature variation equations are taken in the present study. The Sine wave variation, Cosine wave variation & exponential variation of the base temperature. The finite element technique based on Galerkin method with axisymmetric rectan...

We examine the effect on the superconducting transition temperature (Tc) of chemical inhomogeneities in Bi2Sr2CuO61d and Bi2Sr2CaCu2O81d single crystals. Cation disorder at the Sr crystallographic site is inherent in these materials and strongly affects the value of Tc . Partial substitution of Sr by Ln ~Ln 5 La, Pr, Nd, Sm, Eu, Gd, and Bi! in Bi2Sr1.6Ln0.4CuO61d results in a monotonic decrease...