Journal ArticleDOI
The fusion of metal clusters in M5X4 compounds
Vijay Kumar,V Heine +1 more
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In this paper, the authors investigate the common qualitative idea that a solid is particularly stable if the electron states are filled up to some energy band gap, and discuss the question of why only the compounds with 2.4 <or=VEC<or=3.6 exist.Abstract:
The authors investigate the common qualitative idea that a solid is particularly stable if the electron states are filled up to some energy band gap. Such ideas have previously been advanced to explain the occurrence of a certain family of M5X4 compounds (M=transition metal, X=chalcogen) only for particular ranges of valence electron concentration (VEC). In these materials octahedral metal clusters condense to form infinite chains. The authors study the stability of such chains against break-up on two models, (i) a regular octahedral chain and (ii) the chain of the compound Nb5Te4, and discuss the question of why only the compounds with 2.4<or=VEC<or=3.6 exist.read more
Citations
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Journal ArticleDOI
Cluster valenzelektronenarmer Metalle – Strukturen, Bindung, Eigenschaften
TL;DR: In this paper, the Verbindungs- und Strukturenvielfalt bei metallreichen Systemen valenzelektronenarmer Metalle unter einem einheitlichen Blickwinkel zu ordnen.
Journal ArticleDOI
Bonding in clusters and condensed cluster compounds that extend in one, two and three dimensions
Journal ArticleDOI
Empty, filled, and condensed metal clusters
TL;DR: In this article, the role of interstitial atoms in the structure, bonding, physical, and chemical properties of compounds containing discrete empty clusters and clusters with interstitial H atoms is discussed.
Journal ArticleDOI
The Role of Valence Electron Concentration in Tuning the Structure, Stability, and Electronic Properties of Mo6S9–xIx Nanowires
TL;DR: In this paper, the authors demonstrate the strong influence of valence electron concentration (VEC) on the local atomic structure and electronic properties of Mo6S9-xIx (x = 0-9) nanowires (NWs).
Book ChapterDOI
2.12 – Metal-Rich Compounds of the d-Metals
TL;DR: In this paper, compounds rich in d-metals ranging from molecular and nanoscale clusters to extended intermetallic, interstitial, and metal-metalloid structures are reviewed.
References
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Quantum theory of solids
Rudolf Peierls,Louis D. Roberts +1 more
TL;DR: In this article, the interaction of light with non-conducting crystals has been studied in the context of crystal lattices and its applications in general theory and applications, such as semi-conductivity and superconductivity.
Journal ArticleDOI
s-d Interaction in Transition Metals
TL;DR: S-D interaction in electronic band structure of transition metals represented by model Hamiltonian, treating copper band structure as discussed by the authors, is considered in this paper. But it is based on model Hamiltonians.
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A Molecular Orbital Treatment of the Bonding in Certain Metal Atom Clusters
F. A. Cotton,Terry E. Haas +1 more
TL;DR: In this article, the metal-metal bonding within the clusters is treated by a simple molecular orbital method, and it is shown that in this way all the general aspects of the electronic structures can be straightforwardly accounted for.
Journal ArticleDOI
Condensed Metal Clusters
TL;DR: In the case of the reduced halides of the lanthanoids as discussed by the authors, the metal-metal bonds are linked together by metal clusters of the same type, which can be seen as a way of connecting the two types of structures.
Journal ArticleDOI
Phonon dispersion in transition metals
Chandra Varma,W. Weber +1 more
TL;DR: In this article, a new formulation of lattice dynamics especially suitable for transition metals and compounds is presented, and the phonon dispersion in $4d$ bcc metals and alloys based on it reproduce all the anomalies observed in inelastic-neutron-scattering experiments.
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