The normal state resistivity of single phase polycrystalline Gd(Ba<Subscript>2–x </Subscript>Pr<Subscript> x </Subscript>)Cu<Subscript>3</Subscript>O<Subscript>7+δ</Subscript> samples with 0.0≤x≤0.50 have been investigated. There is a distinct metal-insulator transition at <InlineEquation ID="IEq1"> <EquationSource Format="MATHTYPE">% MathType!MTEF!2!1!+- % feaafaart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn %...</equationsource></inlineequation></subscript></subscript></subscript></subscript>

Ab initio total energy calculations have been performed for superconducting GdBa<Subscript>2</Subscript>Cu<Subscript>3</Subscript>O<Subscript>7</Subsc ript> and insulating PrBa<Subscript>2</Subscript>Cu<Subscript>3</Subscript>O<Subscript>7</Subsc ript> using the full-potential linear augmented plane-wave method in the local density approximation (LDA) and generalized gradient approximation (GGA). The comparison of the calculated...<//subsc></subscript></subscript></subscript><//subsc></subscript></subscript></subscript>

We have studied the structural, electrical, and magnetic properties of the normal and superconducting states Gd(Ba2-xLax)Cu3O7+δ [Gd(BaLa)123] samples with 0.0 ≤x ≤0.8 prepared by the standard solid-state reaction. XRD characterization shows an orthorhombic-tetragonal structural transition...

Tetragonal Gd<Subscript>1-x</Subscript>Pr<Subscript>x</Subscript>BaCaCu<Subscript>3</ Subscript>O<Subscript>7-δ</Subscript> (0≤x≤1) polycrystalline samples have been prepared by the standard solid-state reaction, and characterized by XRD and SEM. Rietveld analysis on X-ray diffraction pattern shows site mixing between rare earth (R) and Ca. Contrary to Gd<Subscript>1-x</Subscript>Pr<Subscript>x</Subscript>Ba<Subscript>2</Subs cript>Cu<Subscript>3</Subscript>O<Subscript>7-δ</Subscript>, a hump...</subscript></subscript><//subs></subscript></subscript></subscript></subscript><//></subscript></subscript></subscript>

We have performed a first-principle calculation of the structural, electronic and high pressure properties of RuSr<Subscript>2</Subscript>GdCu<Subscript>2</Subscript>O<Subscript>8</Sub script>, a ferromagnetic superconductor, by employing a full-potential linearized augmented plane-wave method within the density-functional theory. The effect of pressure was...<//sub></subscript></subscript></subscript>

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Büroorganisation -- Aufgaben- und Arbeitsplatzorganisation -- Beschaffungsmanagement -- Informations- und Ablagemanagement -- Intranet Office-Handbuch -- Korrespondenz -- Die neue Geschäftskorrespondenz – professionell, kundenorientiert, abwechslungsreich -- Korrespondenz und Corporate...