2000/01/25 by A. T. Varela, Alexander Varela, J. M. Sasaki +19
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Nonlinear Optical Materials Research #Solid-state spectroscopy and crystallography #Spectroscopy and Quantum Chemical Studies #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0001364
4 figures
arxiv created 2000/01/25 · openalex publication_date 2000/01/25 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
X-ray scattering measurements are performed in order to verify % that the mechanism leading to the DC electric field induced C2v19 → C2v≠ 19 phase transition in KDP crystal at 119 K is the changing of the local sites symmetries of phosphate group from C2 in the C2v19 phase to Cs in the C2v≠ 19 phase. It is shown by analyzing the integrated intensity of the (800) and (080) reflections that under DC electric field the density of oxygen atoms lying on these plane changes indicating that phosphate group rotates around the [010] direction relative to the orthorhombic C2v19 structure. Some Raman results are also discussed.