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Features of the α ↔ β phase transition of gallium telluride in nonequilibrium Te-Ge alloys

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Features of the α ↔ β phase transition of germanium telluride in nonequilibrium Te-Ge alloys have been studied. Results of a thermal analysis of these alloys affords a graphical visualization of the a ↔ β transformation, as well as the temperature range over which polymorphic forms of GeTe are stable. It is shown that even at cooling rates exceeding 106 K/sec, β-GeTe does not yield to quenching. Based on results of high temperature x-ray analysis, and electron and optical microscopy, we propose that the β-GeTe → α-GeTe transition is a martensitic-type transition.

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Additional information

Chernivitsi State University, Chernivitsi, Ukraine. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 3–7, February, 1993.

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Vengrenovich, R.D., Stasik, M.O., Lopatnyuk, I.A. et al. Features of the α ↔ β phase transition of gallium telluride in nonequilibrium Te-Ge alloys. Russ Phys J 36, 103–107 (1993).

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  • Electron Diffraction Pattern
  • GeTe
  • Grain Orientation
  • Chalcogen
  • High Temperature Form