# Inelastic x-ray investigation of the ferroelectric transition in SnTe

@article{ONeill2017InelasticXI,
title={Inelastic x-ray investigation of the ferroelectric transition in SnTe},
author={C. O'Neill and D. Sokolov and A. Hermann and A. Bossak and C. Stock and Andrew D. Huxley . School of Physics and Astronomy and Csec and U. Edinburgh and Edinburgh and Uk and Max-Planck-Institut fur Chemische Physik fester Stoffe and Dresden. and Germany. and ID28 and European Synchrotron Radiation Facility and Grenoble and France.},
journal={Physical Review B},
year={2017},
volume={95},
pages={144101}
}
• C. O'Neill, +15 authors France.
• Published 2017
• Physics, Materials Science
• Physical Review B
• We report that the lowest energy transverse-optic phonon in metallic SnTe softens to near zero energy at the structural transition at ${T}_{C}=75\phantom{\rule{4.pt}{0ex}}\text{K}$ and importantly show that the energy of this mode below ${T}_{C}$ increases as the temperature decreases. Since the mode is a polar displacement this proves unambiguously that SnTe undergoes a ferroelectric displacement below ${T}_{C}$. Concentration gradients and imperfect stoichiometry in large crystals may explain… CONTINUE READING

#### References

##### Publications referenced by this paper.
SHOWING 1-10 OF 51 REFERENCES
S
• 1824
245038
D
164692
M
245070
Phys
• 1976
Phys
• 1966