Results 211 to 220 of about 288,566 (269)
Theoretical Guidelines for Electrochemical C-F Bond Cleavage in Perfluorobutanoic Acid Using Transition Metal Catalysts. [PDF]
ACS OmegaLee CH, Liu J, Kwon JS.
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Coordination Chemistry at the Hard-Soft Interface: Phosphine Oxide-Based Rare Earth/Transition Metal Complexes. [PDF]
ACS OmegaPanda R +5 more
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Metal to semiconductor transition in metallic transition metal dichalcogenides
Journal of Applied Physics, 2013We report on tuning the electronic and magnetic properties of metallic transition metal dichalcogenides (mTMDCs) by 2D to 1D size confinement. The stability of the mTMDC monolayers and nanoribbons is demonstrated by the larger binding energy compared to the experimentally available semiconducting TMDCs. The 2D MX2 (M = Nb, Ta; X = S, Se) monolayers are
Yan Li +5 more
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Metal-insulator transition in transition metal oxides
Journal of Physics C: Solid State Physics, 1971Electronic band structure calculations for TiO, VO, MnO, FeO, CoO, and NiO suggest that the 4s band becomes degenerate with the 3d band at VO and thus helps to destroy the Mott insulator state. The large difference in lattice constant between the metallic and insulating oxides is well accounted for in terms of the Mott transition.
V Heine, L F Mattheiss
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Metal-insulator Transition in Transition Metal Oxides
IBM Journal of Research and Development, 1970The metal-insulator transition in the V2O3 system is discussed. A recent series of experiments on V2O3 and (V1-xCrx)2O3 is reviewed. The phase diagram fort he system is described. The Cr-doped mixed oxides are insulating at room temperature for x ≥ 0.009 and transform to a metal with the application of pressure. This phase transition is identified as a
T. M. Rice, D. B. McWhan
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Semiconductor-To-Metal Transitions in Transition-Metal Compounds
Physical Review, 1967The theory presented in a previous paper is applied to the transition-metal compounds which are known to exhibit semiconductor-to-metal transitions. In particular, the predictions of the theory are compared with the experimental results of Feinleib and Paul on ${\mathrm{V}}_{2}$${\mathrm{O}}_{3}$.
David Adler +3 more
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Heavy fermions in transition metals and transition-metal oxides [PDF]
The European Physical Journal B - Condensed Matter, 2003 Heavy-fermion formation in transition metals and transition-metal oxides is reviewed and compared to observations in canonical f-derived heavy-fermion systems. The work focuses on the dynamic susceptibilities which reveal a characteristic temperature and frequency dependence and which can be unambiguously determined via nuclear magnetic resonance and ...
Krug von Nidda, Hans-Albrecht +4 more
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EcoSal Plus, 2009
This chapter focuses on transition metals. All transition metal cations are toxic—those that are essential for Escherichia coli and belong to the first transition period of the periodic system of the element and also the "toxic-only" metals with higher atomic numbers.
Dietrich H, Nies, Gregor, Grass
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This chapter focuses on transition metals. All transition metal cations are toxic—those that are essential for Escherichia coli and belong to the first transition period of the periodic system of the element and also the "toxic-only" metals with higher atomic numbers.
Dietrich H, Nies, Gregor, Grass
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Contemporary Physics, 1973
Abstract The valence and conduction bands in semi-conductors normally owe their properties to their crystal structures. Sometimes changes in pressure or composition in mixed crystals can lead to an overlap between these bands, which results in a transition to metallic behaviour.
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Abstract The valence and conduction bands in semi-conductors normally owe their properties to their crystal structures. Sometimes changes in pressure or composition in mixed crystals can lead to an overlap between these bands, which results in a transition to metallic behaviour.
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