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Author(s) |
Poswal, H. K.; Tyagi, A. K.; Lausi, A.; Deb, S. K.; Sharma, S. M.
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High pressure behavior of zinc cyanide (Zn(CN)2)
has been investigated with the help of synchrotron- based X-ray
diffraction measurements. Our studies reveal that under pressure
this compound undergoes phase transformations and the structures
of the new phases depend on whether the pressure is hydrostatic or
not. Under hydrostatic conditions, Zn(CN)2 transforms
from cubic to orthorhombic to cubic-II to amorphous phases. In
contrast, then on-hydrostatic pressure conditions drive the
ambient cubic phase to a partially disordered crystalline phase,
which eventually evolves to a substantially disordered
phase. The final disordered phase in the latter case is distinct
from the amorphous phase observed under the hydrostatic
pressures.
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