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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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The structures of transition metal-transition metal alloys
Journal of Solid State Chemistry, 1984Abstract A structure map using the average electron count and d orbital energy difference as indices is used to sort transition metal alloys of stoichiometry AB . The gross features of the map are mimicked by tight-binding calculations. The inclusion of s orbitals on the metal atoms appear to be important in the determination of alloy structure ...
Jeremy K. Burdett, Timothy J. McLarnan
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The transition metal hexafluorides
Dalton Transactions, 2009The nine transition metal hexafluorides present a unique series of closely related compounds. Deviations from octahedral structures are influenced by Jahn-Teller effects and spin orbit coupling. The most pronounced chemical behaviour is the increasing electron affinity in the direction WF(6)--> PtF(6) and MoF(6)--> RuF(6), so that with PtF(6) and RuF(6)
Matthias Johann, Molski, Konrad, Seppelt
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Critical size for a metal-nonmetal transition in transition-metal clusters
Physical Review B, 1994Based on a tight-binding Friedel model for the density of d-electron states, we investigate the critical size for the metal-nonmetal transition in transition-metal clusters. An analytic equation for the critical size has been introduced for the cluster with close-packed structure. At the critical point (about 30--50 atoms), the density of states of the
, Zhao, , Chen, , Wang
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Photocurrent Generation with Transition Metal Nitrides and Transition Metal Carbides
2018 20th International Conference on Transparent Optical Networks (ICTON), 2018Photoexcited hot carriers in metals can be injected into adjacent semiconductors to collect sub-bandgap photons. In the current work, we experimentally demonstrate that transition metal nitrides and transition metal carbides can act as metals and generate hot electrons by optical illumination similar to metals.
Satoshi Ishii +2 more
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Density functional theory for transition metals and transition metal chemistry
Physical Chemistry Chemical Physics, 2009We introduce density functional theory and review recent progress in its application to transition metal chemistry. Topics covered include local, meta, hybrid, hybrid meta, and range-separated functionals, band theory, software, validation tests, and applications to spin states, magnetic exchange coupling, spectra, structure, reactivity, and catalysis,
Christopher J, Cramer, Donald G, Truhlar
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