Electron-electron interactions in the chemical bond: "1/3" effect in the bond length of hydrogen molecule

Ganguly, P. (2001) Electron-electron interactions in the chemical bond: "1/3" effect in the bond length of hydrogen molecule Proceedings of the Indian Academy of Sciences - Chemical Sciences, 113 (5-6). pp. 415-425. ISSN 0253-4134

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Official URL: http://www.ias.ac.in/chemsci/Pdf-OctDec2001/Pc3087...

Related URL: http://dx.doi.org/10.1007/BF02708780

Abstract

The prominent "1/3" effect observed in the Hall effect plateaus of two-dimensional electron gas (2DEG) systems has been postulated to indicating 1/3 fractional charge quasiparticle excitations arising from electron-electron interactions. Tunneling shot-noise experiments on 2DEF exhibiting fractional quantum Hall effect (FQHE) shows evidence for tunnelling of particles with eand e/3 charges for a constant band mass. A "1/3" effect in the hydrogen molecule is seen in as much as its internuclear distance,dH-H= D- + D+, with ¦D+/D-¦ = 1/3. This is examined in terms of electron-electron interactions involving electron-and hole quasiparticles, (e-)and(h+), equivalent to those observed in FQHE shot -noise experiments. The(e/m) ratio of the (e-) and (h+) quasiparticles is kept at 1: -3. Instead of a 2DEG, these particles are treated as being in flat Bohr orbits. A treatment in the language of charge-flux tube composites for the hydrogen atom as well as the hydrogen molecule is attempted. Such treatment gives important insights into changes in chemical potential and bond energy on crossing a phase boundary during the atom-bond transition as well as on models for FQHE itself.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Electron-electron Interactions; Quantum Hall Effect; Hydrogen-molecule Bond Length
ID Code:13807
Deposited On:12 Nov 2010 14:41
Last Modified:16 May 2016 22:54

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