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Metallic Conductivity (metallic + conductivity)

Distribution by Scientific Domains

Physics and Astronomy	40%
Chemistry	40%

Selected Abstracts

Synthesis and High Metallic Conductivity of Layer-Structured Sr2N Thin Film Deposited onto MgO(001) Substrate.

CHEMINFORM, Issue 31 2004
Kei Inumura
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Single-Component Molecular Conductor [Pt(tmdt)2] (tmdt,=,trimethylenetetrathiafulvalenedithiolate) , An Advanced Molecular Metal Exhibiting High Metallicity

ADVANCED MATERIALS, Issue 35 2009
Biao Zhou
A newly prepared single-component molecular metal, [Pt(tmdt)2], exhibited very high conductivity and metallic behavior down to 4 K in the compacted polycrystalline state. A ,conducting paint' of [Pt(tmdt)2] obtained by kneading the microcrystals with lacquer and thinner showed metallic conductivity at around room temperature. [source]

How do electrons travel in unusual metallic fluorides of Ag2+?,

PHYSICA STATUS SOLIDI (B) BASIC SOLID STATE PHYSICS, Issue 1 2005
Tomasz Jaro
Abstract We investigate computationally two representative examples of higher fluorides of Ag(II), namely KAgF3 and AgFBF4. Both compounds formally contain linear (Ag,F)+ chains, in which divalent silver is coordinated additionally by four fluoride anions. For AgFBF4, the equatorial coordination is weak, and leads to metallic conductivity in 1D, as emerges from our band structure calculations. For KAgF3, however, the axial coordination is very strong, and the compound is virtually a 2D metal (i.e. it is mainly the x2,y2 orbitals of Ag that participate in electronic transport in this interesting material). (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

The dependence of polymer conductivity on the work function of metallic electrodes

ANNALEN DER PHYSIK, Issue 12 2009
A.N. Ionov
Abstract It is shown that the occurrence of metallic conductivity in polymers is due to their electrification. In particular, the current density depends on the electron work function of metallic electrodes which are in contact with the polymer. [source]

Two Metalloid Ga22 Clusters Containing a Novel Ga22 Core with an Icosahedral Ga12 Center

CHEMISTRY - A EUROPEAN JOURNAL, Issue 8 2004
Andreas Schnepf Dr.
Abstract In addition to the two so far known types of metalloid Ga22 clusters a new type is presented in two compounds containing the anions [Ga22Br{N(SiMe3)2}10Br10]3, (1) and [Ga22Br2{N(SiMe3)2}10Br10]2, (2). In both anions 10 Ga atoms of the icosahedral Ga12 core are directly connected to further Ga atoms. The two remaining Ga atoms (top and bottom) of the Ga12 icosahedron are bonded to one (1) and two Br atoms (2), respectively. The formation and structure of both compounds containing a slightly different average oxidation number of the Ga atoms is discussed and compared especially with regard to the Ga84 cluster compound and similar metalloid Aln clusters. Finally, the consequences arising from the presence of two very similar but not identical Ga22 cluster compounds are discussed and special consideration is given to the so far not understood physical properties (metallic conductivity and superconductivity) of the Ga84 cluster compound. Zusätzlich zu den kürzlich vorgestellten zwei Typen von metalloiden Ga22 -Clustern wird eine neue Variante der Anordnung von 22 Ga-Atomen durch zwei Verbindungen präsentiert, die die Anionen [Ga22Br{N(SiMe3)2}10Br10]3,1 und [Ga22Br2{N(SiMe3)2}10Br10]2,2 enthalten. In beiden Anionen sind 10 Ga-Atome des zentralen ikosaedrischen Ga12 -Zentrums direkt an weitere Ga-Atome gebunden. Die zwei verbleibenden Ga-Atome an der Spitze und am Fuß des Ikosaeders sind direkt mit einem (1) beziehungsweise zwei (2) Br-Atomen verknüpft. Die Bildung und die Struktur beider Verbindungen, die eine leicht unterschiedliche mittlere Oxidationszahl der Ga-Atome enthalten, wird im Hinblick auf die Ga84Clusterverbindung und im Vergleich zu den Verhältnissen in ähnlichen metalloiden Al-Verbindungen diskutiert. Schließlich werden die Konsequenzen des nicht trivialen Nachweises der zwei sehr ähnlichen aber nicht identischen Ga22 -Cluster 1 und 2 diskutiert, die mögliche Ansatzpunkte für die Deutung bisher nicht verstandener physikalischer Eigenschaften (metallische Leitfähigkeit und Superleitfähigkeit) der Ga84Clusterverbindung liefern. [source]