Diagramme de phases et croissance par épitaxie en phase liquide du GaxIn1-xSb

Solidus Isotherms and Isoconcentration Lines in the System Ga‐In‐Sb

“…For comparison purposes, Table I gives the expressions for aGa-Sb~ aIn.Sb~ aGa.In, and aGaSb.inS b determined here and also those used by Blom and Plaskett (5), Panish and Ilegems (7), and Joulli~ et al (8). For ease o,f comparison, values are given for each ~ at 650 ~ and 900~…”

“…For all of these types of ternary diagram, the data are calculated from the conditions for equilibrium between a general ternary liquid solution A-B-C (Ga-In-Sb in this case) and a pseudobinary solid solution AC-BC (GaSb-InSb here). The theory has been presented by various workers (2)(3)(4)(5)(6)(7)(8) (TFBc --T) [Ib] [2a]…”

“…(23) and Macur et al (24) are usually quoted for the evaluation of ~oa-In while the value of aGaSb.InSb is usually obtained by a fit to the pseudobinary liquidus and solidus data (9) or from the calculations of Foster and Woods (25). In all cases the parameter values have been assumed independent of T. Joulli~ et aL (8) determined both aGa-In and aGaSb-InSb from the pseudobinary data by solving equations equivalent to the present Eq. [1], [2], and [3] for composition values from the liquidus and solidus curve.…”

“…Because of the possibility of using ternary III-V alloys in various technological applications, considerable interest has been focused during the last few years on the investigation and prediction of the relevant ternary phase diagrams. Following the model developed by Guggenheim (1), a number of workers (2)(3)(4)(5)(6)(7)(8) have made calculations for various parts of the general ternary diagrams. Much of the work has been concentrated on the form of the pseudobinary sections AxBl-xC since these contain all of the solid phases of interest technologically and for which there exists a considerable amount of experimental data (9-10) for comparison with theoretically predicted values.…”

“…In the present work, the Ga-In-Sb diagram has been considered and experimental measurements made to determine the isoconcentration lines. These, together with liquidus isotherms previously determined (5,8,11), are compared with theoretical values obtained from the simple solution type of analysis carried out previously (5,7,8). The values of the input parameters have been carefully considered to see if any over-all agreement between experiment and theory is possible in this particular case.…”