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Article
Localized-Itinerant and Mott–Hubbard Transitions in Several Perovskites
The localized-itinerant and Mott–Hubbard transitions in single-valent perovskites are distinguished. The approach to the Mott–Hubbard transition from the itinerant-electron side is characterized by the appeara...
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Chapter
Enhanced Thermoelectric Power and Stripes in Cuprate Superconductors
Magnetic, pressure, and angle-resolved photoemission spectroscopy experiments on several perovskite-related transition-metal oxides at the crossover from localized to itinerant electronic behavior reveal stron...
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Chapter
Vibronic Phenomena At Localized-Itinerant and Mott-Hubbard Transitions
It is argued from the pressure dependence of the transport properties that the Mott-Hubbard transition in the AMO3 perovskites is first-order with a dynamic phase segregation appearing in the metallic phase on th...
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Article
Transformed shearing bands in strongly impact loaded 30CrMnSiA steel
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Article
Pressure and Isotope Effects in the Manganese-Oxide Perovskites
Measurements of the temperature dependence of the resistivity ρ(T) and thermoelectric power 6h(T) under several hydrostatic pressures on l8O/l6O isotope-exchanged (La1-xNdxCa0.3MnO3 polycrystalline samples spanni...
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Article
Vibronic states in La{2-x}BaxCuO4BaxCuO4
The temperature dependences of the resistivity R(T) and the thermoelectric power α(itT) under different hydrostatic pressuresP for the system La{2-x}BavCuO4, 0.11 ≤ x < -1.6, are reported and interpreted as evide...
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Article
Non-adiabatic electron-lattice interactions in the copper-oxide superconductors
Transport measurements distinguish the superconductive phase from the parent antiferromagnetic and the overdoped metallic phases in La2−xSrxCuO4. For small x, holes in the CuO2 sheets form non-adiabatic polarons ...
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Article
Physical and chemical properties of (Y1−xCax)(Ba2−xLax)Cu3O7−δ
The metallic conductivity of both the CuO2 sheets and the CuOx chains of YBa2Cu3O7−δ has been established. We have used double do** in (Y1−xCax)(Ba2−xLax)Cu3O7−δ to destroy the integrity of the CuO1−δ chains wh...
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Chapter and Conference Paper
The Copper Oxides As Guides to New Superconductors
The copper oxides provide not only a remarkably high critical temperature Tc, but also model systems for the study of this new phenomenon. The search for new materials must be guided not only by our understanding...