Papers from the Sixth All-Union Conference on Growth of Crystals comprise Volume 16 of this series. The articles were chosen with a view to more fully elucidate the basic problems of crystal growth as reflected in domestic and foreign reviews and in original studies. This volume consists of six parts. Part I is devoted to mechanisms of crystal growth that are important for production of materials with given properties. This part examines the temporal evolution of an inhomogeneous state and the array of semicellular and eutectic structures during microstructure formation, the effect of impurity on the nonequi­ librium vacancy concentration in a growing crystal, and the role of soluble and insoluble impurities in the birth and growth of crystals. Part II deals with the synthesis and electrophysical properties of novel solid electrolytes that are promis­ ing for practical use, analysis and correlation of the large amount of data on growth by the Bridgman-Stockbar­ ger method of single crystals of fluorite phases far from stoichiometry, and the hydrothermal chemistry and growth of hexagonal germanium dioxide.

This 18th volume of the series includes invited papers from the Seventh All-Union Conference on the Growth of Crystals and the Symposium on Molecular-Beam Epitaxy that were held in Moscow in November, 1988. In choosing papers, the Program Committee of the conference gave priority to studies in rapidly emerging areas of the growth and preparation of crystalS and crystalline films. The qualifications of the authors were also consid­ ered. This ensured that the material was of a high standard and that the problems discussed covered a wide range. These are the same criteria that, we hope, are typical of the volumes of this series. The articles of the present volume are divided into four sections: I. Processes on the growth surface. II. Molecular-beam epitaxy. III. Growth of crystals and films from solutions and fluxes. N. Growth of crystals from the melt. Following tradition, the series opens with three theoretical articles. These examine problems applicable to various crystallization media: instability of the crystallization front (for a more general case than before and for a comparatively complicated system, a solution), adsorption and migration of atoms and molecules (the analysis is made on a quantum-chemical level), and the kinetics of step and dislocation growth in the presence of surface anisotropy as well as impurity adsorption (several earlier known methods are summarized). The next two articles are experimental and methodical.

Volume 19 includes articles on growth of crystals from the vapor, from the melt, and from fluxes, as well as a section on actual structure of crystals and films relative to growth conditions.

In keeping with tradition, this collection covers three principal crystallization methods: from the vapor, solution, and the melt. The five articles of the first part are concerned with heterostructure formation. O. P. Pchelyakov and L. V. Sokolov report on controlled growth of nanostructures in the Si-Ge system using an array of modern analytical tools to follow the process in situ. A different method for growing quantum-sized Si-Ge structures is used by Mil'vidskii et al., chemical deposition of hydrides from the vapor. Stresses and misfit dislocations in the resulting heterostructures are thoroughly investigated. The theoretical work of E. M. Trukhanov examines the formation mechanism of long-range stresses that produce r -shaped cracks during the growth of thick Ge-Si films. The reasons for the manifestation of macro defects connected with the generation of twins in HgCdTe films are unraveled by Yu. G. Sidorov et al. The conditions under which films with a low defect density grow are found. The preparation of highly oxidized amorphous Nb films and the structures formed during the crystallization of these films are reported by A. A. Sokol et al.Growth from solutions is the subject of the four articles in the second part.

This title presents a survey, with detailed analysis, of the scientific and technological approaches, and results obtained, by leading Russian crystal growth specialists from the late 1990s onwards. The volume contains 16 reviewed chapters on various aspects of crystal and crystalline film growth from various phases (vapour, solution, liquid and solid). Both fundamental aspects, e.g. growth kinetics and mechanisms, and applied aspects, for example, preparation of technically important materials in single-crystalline forms, are covered. A large portion of the volume is devoted to film growth, including film growth from eutectic melt, from amorphous solid state, kinetics of lateral epitaxy and film growth on specially structured substrates. An important chapter in this section covers heteroepitaxy of non-isovalent A3B5 semiconductor compounds, which have important applications in the field of photonics. The volume also includes a detailed analysis of the structural aspects of a broad range of laser crystals, information that is invaluable for successfully growing perfect, laser-effective, single crystals

Papers from the Sixth All-Union Conference on Growth of Crystals comprise Volume 16 of this series. The articles were chosen with a view to more fully elucidate the basic problems of crystal growth as reflected in domestic and foreign reviews and in original studies. This volume consists of six parts. Part I is devoted to mechanisms of crystal growth that are important for production of materials with given properties. This part examines the temporal evolution of an inhomogeneous state and the array of semicellular and eutectic structures during microstructure formation, the effect of impurity on the nonequi­ librium vacancy concentration in a growing crystal, and the role of soluble and insoluble impurities in the birth and growth of crystals. Part II deals with the synthesis and electrophysical properties of novel solid electrolytes that are promis­ ing for practical use, analysis and correlation of the large amount of data on growth by the Bridgman-Stockbar­ ger method of single crystals of fluorite phases far from stoichiometry, and the hydrothermal chemistry and growth of hexagonal germanium dioxide.

This 18th volume of the series includes invited papers from the Seventh All-Union Conference on the Growth of Crystals and the Symposium on Molecular-Beam Epitaxy that were held in Moscow in November, 1988. In choosing papers, the Program Committee of the conference gave priority to studies in rapidly emerging areas of the growth and preparation of crystalS and crystalline films. The qualifications of the authors were also consid­ ered. This ensured that the material was of a high standard and that the problems discussed covered a wide range. These are the same criteria that, we hope, are typical of the volumes of this series. The articles of the present volume are divided into four sections: I. Processes on the growth surface. II. Molecular-beam epitaxy. III. Growth of crystals and films from solutions and fluxes. N. Growth of crystals from the melt. Following tradition, the series opens with three theoretical articles. These examine problems applicable to various crystallization media: instability of the crystallization front (for a more general case than before and for a comparatively complicated system, a solution), adsorption and migration of atoms and molecules (the analysis is made on a quantum-chemical level), and the kinetics of step and dislocation growth in the presence of surface anisotropy as well as impurity adsorption (several earlier known methods are summarized). The next two articles are experimental and methodical.

Volume 19 includes articles on growth of crystals from the vapor, from the melt, and from fluxes, as well as a section on actual structure of crystals and films relative to growth conditions.

In keeping with tradition, this collection covers three principal crystallization methods: from the vapor, solution, and the melt. The five articles of the first part are concerned with heterostructure formation. O. P. Pchelyakov and L. V. Sokolov report on controlled growth of nanostructures in the Si-Ge system using an array of modern analytical tools to follow the process in situ. A different method for growing quantum-sized Si-Ge structures is used by Mil'vidskii et al., chemical deposition of hydrides from the vapor. Stresses and misfit dislocations in the resulting heterostructures are thoroughly investigated. The theoretical work of E. M. Trukhanov examines the formation mechanism of long-range stresses that produce r -shaped cracks during the growth of thick Ge-Si films. The reasons for the manifestation of macro defects connected with the generation of twins in HgCdTe films are unraveled by Yu. G. Sidorov et al. The conditions under which films with a low defect density grow are found. The preparation of highly oxidized amorphous Nb films and the structures formed during the crystallization of these films are reported by A. A. Sokol et al.Growth from solutions is the subject of the four articles in the second part.

This title presents a survey, with detailed analysis, of the scientific and technological approaches, and results obtained, by leading Russian crystal growth specialists from the late 1990s onwards. The volume contains 16 reviewed chapters on various aspects of crystal and crystalline film growth from various phases (vapour, solution, liquid and solid). Both fundamental aspects, e.g. growth kinetics and mechanisms, and applied aspects, for example, preparation of technically important materials in single-crystalline forms, are covered. A large portion of the volume is devoted to film growth, including film growth from eutectic melt, from amorphous solid state, kinetics of lateral epitaxy and film growth on specially structured substrates. An important chapter in this section covers heteroepitaxy of non-isovalent A3B5 semiconductor compounds, which have important applications in the field of photonics. The volume also includes a detailed analysis of the structural aspects of a broad range of laser crystals, information that is invaluable for successfully growing perfect, laser-effective, single crystals