Phase diagrams and crystal growth of pseudobinary alloy semiconductors

Elastic, lattice dynamical and thermal properties of zinc-blende CdSe x Te 1− x ternary alloys

“…As regards CdSe x Te 1Àx ternary alloys of interest, Uthanna and Reddy [7], Mangalhara et al [8] and Islam et al [9] have observed the presence of only cubic phase over the entire composition range. Nevertheless, other studies [10][11][12][13] have revealed that CdSe x Te 1Àx crystallizes in either cubic or hexagonal structure.…”

“…In this respect, some experimental and theoretical investigations have been reported for the material system under load [1,2,4,[7][8][9][10][11][12][13][14][15][16]. However, many fundamental properties of CdSe x Te 1Àx ternary alloys remain to be determined precisely.…”

Thermal Properties

“…More recently, Ohata et al [22] studied the system for the full range of compositions and observed a change of phase from the zinc-blende to wurtzite at x $ 0.2. Figure 2.8 illustrates the phase diagram for the CdSe-CdTe system [21]. 0.25.…”

On the minimal topology in the class of topological vector groups onR1

“…Unfortunately, the main area of potential exploitation still awaits the development of a reliable and easily fabricated heat pipe suitable for operation in the 1000-1600°C temperature range. Steininger and Strauss (1972) have substituted a heat pipe seed rod for the water-cooled rod normally employed in a triarc crystal growth furnace. The heat pipe, made of copper and employing a fluorinated hydrocarbon as working fluid with a maximum operating temperature of 24OCC, has been used to grow single crystals of the oxides of vanadium and other metals with melting temperatures of up to 2075T.…”

“…For solution zoning, Steininger and Strauss (1972) have suggested that the relatively high and stable temperature gradients required could be produced by a set of heat pipe ovens in series. The ovens would provide well defined zones with high temperature gradients between them.…”