Results 211 to 220 of about 291,296 (268)

Coordination Chemistry at the Hard-Soft Interface: Phosphine Oxide-Based Rare Earth/Transition Metal Complexes. [PDF]

ACS Omega
Panda R, Flecken F, Papke C, Anson CE, Grell T, Hanf S.   +5 more
europepmc   +1 more source

Benchmarking physics-inspired machine learning models for transition metal complexes with diverse charge and spin states.

Digit Discov
Cho Y, Briling KR, Calvino Alonso Y, Laplaza R, Corminboeuf C.   +4 more
europepmc   +1 more source

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Metal to semiconductor transition in metallic transition metal dichalcogenides

Journal of Applied Physics, 2013
We 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, Sefaattin Tongay, Qu Yue, Jun Kang, Junqiao Wu, Jingbo Li   +5 more
openaire   +1 more source

Metal-insulator transition in transition metal oxides

Journal of Physics C: Solid State Physics, 1971
Electronic 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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Semiconductor-To-Metal Transitions in Transition-Metal Compounds

Physical Review, 1967
The 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, Julius Feinleib, Harvey Brooks, William Paul   +3 more
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Metal-insulator Transition in Transition Metal Oxides

IBM Journal of Research and Development, 1970
The 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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Transition Metal Homeostasis

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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Metal-Insulator Transitions

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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The transition metal hexafluorides

Dalton Transactions, 2009
The 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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Electronic Transitions in Metals and Insulator-Metal Transitions

1973
In this chapter we take up transitions which change the electrical properties of metals or compounds by establishing a new ground state for the system. Changes in physical rather than chemical properties are involved in these transitions, in contrast to the events discussed in later chapters.
H. G. Drickamer, C. W. Frank
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