Bonding in phase change materials: concepts and misconceptions

Journal of Physics. Condensed Matter : an Institute of Physics Journal
R O Jones

Abstract

Bonding concepts originating in chemistry are surveyed from a condensed matter perspective, beginning around 1850 with 'valence' and the word 'bond' itself. The analysis of chemical data in the 19th century resulted in astonishing progress in understanding the connectivity and stereochemistry of molecules, almost without input from physicists until the development of quantum mechanics in 1925 and afterwards. The valence bond method popularized by Pauling and the molecular orbital methods of Hund, Mulliken, Bloch, and Hückel play major roles in the subsequent development, as does the central part played by the kinetic energy in covalent bonding (Ruedenberg and others). 'Metallic' (free electron) and related approaches, including pseudopotential and density functional theories, have been remarkably successful in understanding structures and bonding in molecules and solids. We discuss these concepts in the context of phase change materials, which involve the rapid and reversible transition between amorphous and crystalline states, and note the confusion that some have caused, in particular 'resonance' and 'resonant bonding'.

References

Sep 21, 1987·Physical Review Letters·T Kennedy, E H Lieb
Jun 1, 1927·Proceedings of the National Academy of Sciences of the United States of America·E U Condon
Apr 1, 1928·Proceedings of the National Academy of Sciences of the United States of America·L Pauling
Oct 1, 1960·Proceedings of the National Academy of Sciences of the United States of America·E ZuckerkandlL Pauling
Nov 15, 2006·Journal of Computational Chemistry·Werner Kutzelnigg
Dec 5, 2006·Journal of Computational Chemistry·Anthony ScemamaAndreas Savin
Oct 15, 1948·Helvetica Chimica Acta·H KUHN
Jul 16, 2008·Nature Materials·Kostiantyn ShportkoMatthias Wuttig
Nov 18, 2008·Nature Materials·Dominic LencerMatthias Wuttig
Nov 19, 2008·Journal of Physics. Condensed Matter : an Institute of Physics Journal·J Akola, R O Jones
Jul 20, 2011·The Journal of Physical Chemistry. a·Richard F W Bader
Jul 19, 2013·The Journal of Physical Chemistry. a·George B Bacskay, Sture Nordholm
Jun 2, 2014·The Journal of Chemical Physics·Michael W SchmidtKlaus Ruedenberg
Mar 2, 2016·Scientific Reports·Barbara CasarinMarco Malvestuto
May 20, 2016·Scientific Reports·Saikat MukhopadhyayDavid J Singh
Apr 18, 2017·The Journal of Physical Chemistry Letters·Daniel S Levine, Martin Head-Gordon
Nov 18, 2017·The Journal of Physical Chemistry. a·George B Bacskay, Sture Nordholm

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Citations

Sep 5, 2019·Experimental Dermatology·Yozo Ishiuji
Jun 12, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sture Nordholm, George Bacskay
May 13, 2021·The Journal of Physical Chemistry Letters·Vasilii VasilchenkoAndriy Zhugayevych
Nov 19, 2020·Nano Letters·Pok Lam TseJia Grace Lu

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