Chemical Bonds in Solids, 1972 Volume 3: X-Ray and Thermodynamic Investigations

The present four volumes, published under the collective title of "Chemical Bonds in Solids," are the translation of the two Russian books "Chemical Bonds in Crystals" and "Chemical Bonds in Semiconductors." These contain the papers presented at the Conference on Chemical Bonds held in Minsk between May 28 and June 3, 1967, together with a few other papers (denoted by an asterisk) which have been specially incorporated. Earlier collections (also published by the Nauka i Tekhnika Press of the Belorussian Academy of Sciences) were entitled "Chemical Bonds in Semiconductors and Solids" (1965) and "Chemical Bonds in Semiconductors and Thermody­ namics" (1966) and are available in English editions from Consultants Bureau, New York (pub­ lished in 1967 and 1968, respectively). The subject of chemical bonds in crystals, including semiconductors, has recently become highly topical and has attracted the interest of a wide circle of physicists, chemists, and engineers. Until recently, the most successful description of the properties of solids (including semi­ conductors) has been provided by the band theory, which still dominates the physics of solids. Nevertheless, it is clear that the most universal approach is that based on the general theory of chemical bonds in crystals, in which details of the electron distributions between atoms and of the wave functions appear quite expliCitly.

I X-Ray Diffraction and Spectroscopic Investigations.- Distribution of Valence Electrons in Magnesium Silicide.- Experimental Determination of the Structure Amplitudes and of the Degree of Ionization in Gallium Phosphide.- Mean-Square Dynamic Displacements and Atomic Scattering Factors of Ions in Aluminum Nitride.- X-Ray Spectroscopic Investigation of Chemical Bonding in Some Rare-Earth Titanates.- Determination of the Degree of Ionicity of the Bonds in Some Compounds of Phosphorus from the Shift of the $${{\text{K}}_{{{\alpha }_{1,2}}}}$$ X-Ray Lines.- Derivation of the Electronic Structure of Aluminum Atoms in Al2O3 from X-Ray Spectroscopic Data.- Investigation of the Atomic Binding Forces in Mercury Telluride by the X-Ray Diffraction Method.- Influence of the Chemical Bonding on the $${{\text{K}}_{{{\alpha }_{1,2}}}}$$ Doublet of Iron Investigated Using Local X-Ray Spectroscopic Analysis.- Investigation of the Carbon K and Metal Emission Bands and Bonding for Stoichiometric and Nonstoichiometric Carbides.- Investigation of the Distribution of the Potential in the Unit Cell of Lithium Fluoride.- Chemical and Knight Shifts in AIIIBV Compounds.- X-Ray Emission K Spectra of Silicon in Chromium Silicides.- Electron Diffraction Study of Sodium Bromide Thin Films.- Anisotropy of the Scattering of X Rays and Electrons by Cubic Crystals.- Relationship Between the Reflection of X Rays and the Degree of Perfection of Crystals in Focusing Monochromators.- Electron Density Distribution and Effective Charges in Indium Phosphide.- Distribution of the Uncompensated Electron Density in the Ferromagnetic Manganese Compounds MnAs, MnSb, and MnBi.- Distribution of the Potential in the Gallium Phosphide Lattice.- II Thermodynamic and Thermochemical Investigations.- Phase Equilibria and Transitions at Low Temperatures.- The Average Heat of Atomization and the Properties of Semiconductors.- Heats of Atomization and Some Thermochemical Constants of AIIIBV Compounds.- Thermodynamic Properties of Alloys of the ZnAs2—CdAs2 and Zn3As2—Cd3As2 Quasibinary Systems.- Thermodynamic Properties of Gallium Phosphide.- Thermodynamic Properties of Manganese Germanides.- Some Relationships Governing the Doping of Semiconductors.- Investigation of the Evaporation of Antimony and Bismuth Tellurides and of Bismuth Selenide.- Thermodynamic Properties of Bi2Te3, Bi2Se3, Sb2Te3, and Sb2Se3.- Enthalpies of Formation of Some Rare-Earth Sulfides.- Thermodynamic Properties of CoTe2.- Thermodynamic Properties of Crystals in Relation to the Nature and Energy of the Interatomic Interaction.- Thermodynamic Properties of AlSb and AlSb—GaSb Solid Solutions.- EMF Study of the Thermodynamic Properties of Gallium Selenide Ga2Se3.- Thermodynamic Properties of Some Semiconductors.- Kinetics of the Etching of AIV and AIIIBV Semiconductors.