Phase Transition in an Organic Ferroelectric: Glycinium Phosphite, with and without X-ray Radiation Damage Full article
| Journal |
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
ISSN: 2052-5192 , E-ISSN: 2052-5206 |
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| Output data | Year: 2021, Volume: 77, Number: 3, Pages: 365-370 Pages count : 6 DOI: 10.1107/s2052520621003127 | ||||||||||
| Tags | Ferroelectric; Glycinium phosphite; Hydrogen bonding; Radiation damage; Spontaneous strain | ||||||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0002 |
| 2 | Russian Foundation for Basic Research | 19-29-12023 (АААА-А19-119111990092-9) |
Abstract:
Thermal evolution of an organic ferroelectric, namely, glycinium phosphite, was probed by multi-temperature single-crystal diffraction using synchrotron radiation and also by a similar experiment with a laboratory X-ray diffractometer. Both series of measurements showed a transition from the paraelectric to the ferroelectric state at nearly the same temperature, Tc = 225 K. Temperature evolution of the unit-cell parameters and volume are drastically different for the synchrotron and laboratory data. The latter case corresponds to previous reports and shows an expected contraction of the cell on cooling. The data collected with the synchrotron beam show an abnormal nonlinear increase in volume on cooling. Structure analysis shows that this volume increase is accompanied by a suppression of scattering at high angles and an apparent increase of the anisotropic displacement parameters for all atoms; we therefore link these effects to radiation damage accumulated during consecutive data collections. The effects of radiation on the formation of the polar structure of ferroelectric glycinium phosphite is discussed together with the advantages and drawbacks of synchrotron experimentation with fine temperature sampling.
Cite:
Bogdanov N.E.
, Zakharov B.A.
, Chernyshov D.
, Pattison P.
, Boldyreva E.V.
Phase Transition in an Organic Ferroelectric: Glycinium Phosphite, with and without X-ray Radiation Damage
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials. 2021. V.77. N3. P.365-370. DOI: 10.1107/s2052520621003127 WOS Scopus РИНЦ OpenAlex ANCAN PMID
Phase Transition in an Organic Ferroelectric: Glycinium Phosphite, with and without X-ray Radiation Damage
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials. 2021. V.77. N3. P.365-370. DOI: 10.1107/s2052520621003127 WOS Scopus РИНЦ OpenAlex ANCAN PMID
Dates:
| Submitted: | Feb 22, 2021 |
| Accepted: | Mar 24, 2021 |
| Published online: | May 13, 2021 |
| Published print: | Jun 1, 2021 |
Identifiers:
| ≡ Web of science: | WOS:000661270800009 |
| ≡ Scopus: | 2-s2.0-85107671231 |
| ≡ Elibrary: | 46806189 |
| ≡ OpenAlex: | W3162161127 |
| ≡ Chemical Abstracts: | 2021:1245858 |
| ≡ Chemical Abstracts (print): | 176:383333 |
| ≡ PMID: | 34096518 |