Substrates of III-V ternary compound semiconductors with variable bandgaps orlattice constants still remain very attractive for a variety of electronic, optoelec-tronic, and photovoltaic devices. However, the commercial technology for growinglarge-diameter, compositionally homogeneous, bulk III-V ternary crystals has notbeen fully developed. This chapter discusses the fundamenta...

Epitaxy is a widely used method to grow high-quality crystals. One of the key challenges in the field of inorganic solids is the development of epitaxial single-crystal nanostructures. We describe their formation from block copolymer self-assembly-directed nanoporous templates on single-crystal Si backfilled with Si or NiSi through a laser-induced transient melt process. Depending on thickness,...

We have developed a single-direction melt growth method in which REBCO melt-textured bulks grow only vertically from seed plate utilizing the difference peritectic temperatures of REBCO. Entirely c-grown YBCO, DyBCO and GdBCO with various sizes shapes were successfully fabricated high reproducibility. Disk-shaped showed trapped fields almost concentric field distributions, reflecting homogeneou...

Growth of low energy planes of perfect crystals at low supersaturation requires two-dimensional nucleation. The formation energy of nuclei of i atoms may be written G’( = -ikT In cc+G,(i), where G( is the saturation ratio. An atomistic evaluation of G,, for a simple model, is in good agreement with the classical form G,(i) = iiD’, with a constant edge energy coefficient b’, even for very small ...

Crystal size distribution (CSD) in metamorphic rocks provide fundamental information about crystal nucleation and growth rate, growth time and the degree of overstepping. CSD data for garnet, staurolite, kyanite and andalusite crystals from the aureole demonstrate that the earliest formed of these minerals, garnet, has the highest population density and the shortest growth time. The last formed...

The solidification behavior of LuA103 melts in Bridgman geometry is presentedThe contribution of different growth parameters to crystallization of single phase LuA10, are studied. Growth scheme for L U A ~ O ~ N ~ ~ + crystals possessing improved laser properties is described. LuA103 (space group ~:E-~bnm) is the end member of the rhombic rareearth group (LnA103, where Ln = Y or Ln ion between ...

When a chiral chemical compound crystallizes from solution or from its melt, stirring often results in the formation of crystals of just one of the two possible enantiomers, while without fluid advection both enantiomers are formed. We demonstrate with simulations of the dynamics of the system that secondary nucleation is a nonlinear autocatalytic phenomenon that can explain these observations....

Solidification from the melt to near net shape is a commonly used manufacturing technique. The fluid flow patterns in the melt affect the quality of the final product. By controlling the flow behavior, the final solidified material can be suitably affected. Most of the magnetic field approaches to melt flow control rely on the application of a constant magnetic field. A constant magnetic field ...