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X-ray diffraction study of a sequence of phase transitions in Cs2HgCl4 crystals |
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| Authors: | B. Sh. Bagautdinov I. D. Brown Yu. I. Yuzyuk V. P. Dmitriev |
| Affiliation: | (1) Institute of Solid-State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia;(2) Brockhouse Institute of Materials Research, McMaster University, Hamilton, Ontario, L8S 4M1, Canada;(3) Research Institute of Physics, Rostov State University, pr. Stachki 194, Rostov-on-Don, 344014, Russia |
| Abstract: | The temperature behavior of lattice parameters and diffraction patterns of the reciprocal lattice in Cs2HgCl4 crystals is studied by x-ray diffraction in the temperature range from 4.2 to 300 K. A sequence of phase transitions is observed and attributed to the evolution of incommensurate and commensurate modulations along the crystallographic a and c axes of a unit cell in the initial Pnma structure. |
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