Viscosity of Molten InSb, GaSb, and $\mathrm{{In}}_{x}\mathrm{{Ga}}_{1-{x}}\mathrm{{Sb}}$ Alloy Semiconductors

Abstract

The viscosities of molten InSb, GaSb, and $\mathrm{{In}}_{{x}}\mathrm{{Ga}}_{1-{x}}\mathrm{{Sb}}$ ($x=0.2$ and 0.4) were measured as a function of temperature using an oscillating viscometer for fundamental understanding of the physical properties for fabricating high quality InGaSb multicomponent semiconductor crystals. The measured values showed good Arrhenius linearity for InSb, GaSb, and $\mathrm{{In}}_{{x}}\mathrm{{Ga}}_{1-{x}}\mathrm{{Sb}}$ samples. The absolute values of the viscosity for InSb and GaSb agreed with a previous study. Also, it is suggested that the absolute values of the viscosity among the compounds are quite similar, and the results can be associated with their crystal structures.