Abstract
ABSTRACT The high pressure structural changes of Cu3TeO6 have been investigated by using synchrotron radiation X-ray diffraction and Raman spectroscopy up to 23.2(4) and 45.9(7) GPa, respectively. It was found that Cu3TeO6 transformed from the cubic (Ia-3) structure to the orthorhombic (Ibca) structure around 8.6(1) GPa, and the phase transition was reversible. The phase transformation was subtle because of the similarity between two crystal structures. A large internal lattice strain could be the cause to the pressure-induced structural phase transition.
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