G. V. Samsonov's A Configurational Model of Matter PDF

By G. V. Samsonov

ISBN-10: 1468416081

ISBN-13: 9781468416084

ISBN-10: 1468416103

ISBN-13: 9781468416107

The booklet we're offering to American and different English­ conversing readers is a overview of the paintings at the electron struc­ ture of parts, alloys, and compounds, which used to be begun again within the fifties. This paintings progressively grew right into a method of principles at the electron constitution of condensed subject that's referred to now because the configurational version. This version is predicated at the assumption of the preferential formation of the main strong configurations of the localized va­ lence electrons in condensed topic. The life of those good configurations and the alternate of electrons with the de­ localized (collective-state) subsystem determines these prop­ erties that are relating to the electron constitution. The conclu­ sions which are drawn from the purposes of the configura­ tional version are just qualitative yet they clarify rather truly the character of assorted houses of condensed subject, and they're necessary within the look for fabrics with certain homes. the yankee variation has been corrected and supplemented in lots of minor respects. in addition, the chance used to be taken to revise completely the part at the basics of the configura­ tional version within the mild of the most recent theoretical advancements. different components of the booklet were shortened to put off fabric which isn't of basic value or has no longer but been de­ veloped sufficiently fully.

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Extra info for A Configurational Model of Matter

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In contrast to the delocalized (collective-state) electrons, the statistical weight of the bonding configurations determines the properties which are controlled by the binding (cohesive) energy. The detailed features of the binding forces acting between atoms in a crystal are not fully reflected in the Hamiltonian of Eq. (4) because the terms corresponding to the interatomic correlation are not included in their correct form. , they should increase with ascending values of the principal quantum number of the d electrons.

It is possible that a sufficiently high density of the sp configurations is formed also in lead at very low temperatures and this would give rise to a diamond-like structure and semiconducting properties. 30 CHAPTER 1. CONFIGURATIONAL MODEL OF SOliDS In the case of boron, the statistical weight of the sp3 configurations is significantly lower than the corresponding weight for diamond and this is why the melting point, forbidden band width, and microhardness have lower values than in the case of diamond.

4. Schematic distribution of the density of the hybridized sd states: a) transition metals with highest statistical weights of the d5 and dlO configur ations; b) other transition metals. 22 CHAPTER I. CONFIGURATIONAL MODEL OF SOLIDS to the condensed state. A more rigorous many-electron approach utilizing the Hamiltonian of Eq. (1) predicts the same features in the energy spectra, except that the concept of the sand d functions should be replaced by the predominant s or d nature of the total functions resulting from the hybridization of the quasilocalized d n states with the s band.

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A Configurational Model of Matter by G. V. Samsonov

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