Phase Transition in an Organic Ferroelectric: Glycinium Phosphite, with and without X-ray Radiation Damage | Sciact - CRIS-система Института катализа

Phase Transition in an Organic Ferroelectric: Glycinium Phosphite, with and without X-ray Radiation Damage Научная публикация

Журнал

Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
ISSN: 2052-5192 , E-ISSN: 2052-5206

Вых. Данные

Год: 2021, Том: 77, Номер: 3, Страницы: 365-370 Страниц : 6 DOI: 10.1107/s2052520621003127

Ключевые слова

Ferroelectric; Glycinium phosphite; Hydrogen bonding; Radiation damage; Spontaneous strain

Авторы

Bogdanov Nikita E. ^1,2 , Zakharov Boris A. ^1,2 , Chernyshov Dmitry ^3,4 , Pattison Philip ^3,5 , Boldyreva Elena V. ^1,2

Организации

1	Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk 630090, Russian Federation
2	Novosibirsk State University, Pirogova 2, Novosibirsk, Russian Federation
3	Swiss-Norwegian Beam Lines at ESRF, 71 avenue des Martyrs, Grenoble, France
4	Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, St. Petersburg 195251, Russian Federation
5	Laboratory for Quantum Magnetism, SB IPHYS, EPFL, Lausanne, CH-1015, Switzerland

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	0239-2021-0002
2	Российский фонд фундаментальных исследований	19-29-12023 (АААА-А19-119111990092-9)

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.

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 CAPlusCA PMID OpenAlex

Поступила в редакцию:	22 февр. 2021 г.
Принята к публикации:	24 мар. 2021 г.
Опубликована online:	13 мая 2021 г.
Опубликована в печати:	1 июн. 2021 г.

Web of science:	WOS:000661270800009
Scopus:	2-s2.0-85107671231
РИНЦ:	46806189
Chemical Abstracts:	2021:1245858
Chemical Abstracts (print):	176:383333
PMID (PubMed):	34096518
OpenAlex:	W3162161127

БД	Цитирований
Scopus	14
Web of science	15
РИНЦ	10
OpenAlex	11