Zhangming Lv

Magnetic and transport properties in layered Nd 1 − x Sr 1 + x CoO 4

Electrical resistance, thermoelectric power, dc magnetization, ac susceptibility, and electron spin resonance (ESR) are investigated for the polycrystalline

Evidence for spin-glass states and Griffiths singularities in Nd0.75Sr1.25CoO4

{\mathrm{Nd}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{1+x}{\mathrm{CoO}}_{4}

Effect of K and Nd substitutions on superconductivity of Bi2223 superconductors

(

STRUCTURE AND TRANSPORT PROPERTIES OF Pr1-xSr1+xCoO4

x=0.25

Grain boundary effects in the granular high-Tc superconductor RuSr2Gd1.4Ce0.6Cu2O10+δ

, 0.33, and 0.60). Powder x-ray diffraction (XRD) confirms that these compounds crystallize in

Superconducting properties of the Sr substituted La3Ca1−xSrxBa3Cu7Oy system

{\mathrm{K}}_{2}{\mathrm{NiF}}_{4}

Superconductivity at 57.3 K in La-Doped Iron-Based Layered Compound Sm0.95La0.05O0.85F0.15FeAs

-type structure with space group I4/mmm. The specimens exhibit ferromagnetic and semiconducting behaviors. With Sr doping, the lattice parameter

Intrinsic inhomogeneity in the electron-doped manganite Sr0.95Ce0.05MnO3

c

Enhanced Critical Current Properties of MgB2 Bulks by Doping Amorphous Carbon Containing Magnetic Impurity

increases, the cusp intensity related to spin-glass states weakens, and the ferromagnetic property intensifies. The transport mechanisms in high temperature range obey Arrhenius law and might be understood by small polaron models. The magnetic properties present spin-glass states at

Molecular vibrations of the layered-perovskite cobalt oxides characterized by infrared and Raman spectroscopies coupled with crystal structure refinement

\ensuremath{\sim}18\phantom{\rule{0.3em}{0ex}}\mathrm{K}