Chemical localization

Details Chemical localization Chemical localization

2002-12-04

arxiv.org/abs/cond-mat/0212097v1

UFN 172(11), 1283 (2002) [English translation in Physics-Uspekhi 45(11), (2002)]

Physics

Condensed Matter

Disordered Systems and Neural Networks

12 pages, 15 figures

Scientific paper

10.1070/PU2002v045n11ABEH001246

Analysis of experimental data shows that the metal--insulator transition is possible in materials composed of atoms of only metallic elements. Such a transition may occur in spite of the high concentration of valence electrons. It requires stable atomic configurations to act as deep potential traps absorbing dozens of valence electrons. This means in essence that bulk metallic space transforms into an assembly of identical quantum dots. Depending on the parameters, such a material either does contain delocalized electrons (metal) or does not contain such electrons (insulator). The degree of disorder is one of these parameters. Two types of substances with such properties are discussed: liquid binary alloys with both components being metallic, and thermodynamically stable quasicrystals.

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