G. Burns, E.A. Giess, et al.
Journal of Applied Physics
A temperature dependent "soft" optic phonon is found in the ferroelectric Pb5Ge3O11. Other details of the optic phonons that transform as the totally symmetric irreducible representation also are reported. © 1972.
G. Burns, E.A. Giess, et al.
Journal of Applied Physics
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Journal of Solid State Chemistry
F. Mehran, B.A. Scott
Physical Review Letters
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Inorganic Chemistry