Date of Award

2009-01-01

Degree Name

Master of Science

Department

Physics

Advisor(s)

Murat Durandurdu

Abstract

The behavior of SnO2 under rapid hydrostatic pressures is studied using constant-pressure ab initio simulations. The rutile-type SnO2 gradually transforms into the CaCl2-type structure at 15 GPa. At a pressure of about 20 GPa, a phase transformation into a cubic fluorite-type structure is observed. The orthorhombic Pnma cotunnite-structured phase is observed above 150 GPa. The mechanisms of these phase transformations at the atomistic level are discussed.

Language

en

Provenance

Received from ProQuest

File Size

63 pages

File Format

application/pdf

Rights Holder

Daniel Tesfai Yehdego

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