X-ray Natural Circular Dichroism Imaging of Multiferroic Crystals | Sciact - CRIS-system of Boreskov Institute of Catalysis

X-ray Natural Circular Dichroism Imaging of Multiferroic Crystals Full article

Journal

Crystals
, E-ISSN: 2073-4352

Output data

Year: 2021, Volume: 11, Number: 5, Article number : 531, Pages count : 14 DOI: 10.3390/cryst11050531

Tags

multiferroics; X-ray optical activity; twinning; mapping; X-ray Natural Circular Dichroism

Authors

Platunov Mikhail S. ¹ , Gudim Irina A. ¹ , Ovchinnikova Elena N. ² , Kozlovskaya Ksenia A. ² , Wilhelm Fabrice ³ , Rogalev Andrei ³ , Hen Amir ⁴ , Ivanov Vsevolod Y. ⁵ , Mukhin Alexander A. ⁵ , Dmitrienko Vladimir E. ⁶

Affiliations

1	Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
2	Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia
3	ESRF-The European Synchrotron, CS 40220, CEDEX 9, 38043 Grenoble, France
4	Department of Applied Physics, Rachel and Selim School of Engineering, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
5	Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
6	A. V. Shubnikov Institute of Crystallography, FSRC “Crystallography and Photonics” RAS, 119333 Moscow, Russia

The polarizing spectroscopy techniques in visible range optics have been used since the beginning of the 20th century to study the anisotropy of crystals based on birefringence and optical activity phenomena. On the other hand, the phenomenon of X-ray optical activity has been demonstrated only relatively recently. It is a selective probe for the element-specific properties of individual atoms in non-centrosymmetric materials. We report the X-ray Natural Circular Dichroism (XNCD) imaging technique which enables spatially resolved mapping of X-ray optical activity in non-centrosymmetric materials. As an example, we present the results of combining micro-focusing X-ray optics with circularly polarized hard X-rays to make a map of enantiomorphous twinning in a multiferroic SmFe3(BO3)4 crystal. Our results demonstrate the utility and potential of polarization-contrast imaging with XNCD as a sensitive technique for multiferroic crystals where the local enantiomorphous properties are especially important. In perspective, this brings a novel high-performance method for the characterization of structural changes associated with phase transitions and identification of the size and spatial distribution of twin domains.

Platunov M.S. , Gudim I.A. , Ovchinnikova E.N. , Kozlovskaya K.A. , Wilhelm F. , Rogalev A. , Hen A. , Ivanov V.Y. , Mukhin A.A. , Dmitrienko V.E.
X-ray Natural Circular Dichroism Imaging of Multiferroic Crystals

Crystals. 2021. V.11. N5. 531 :1-14. DOI: 10.3390/cryst11050531 WOS Scopus AN OpenAlex

Full text from publisher

Submitted:	Apr 16, 2021
Accepted:	May 4, 2021
Published print:	May 11, 2021
Published online:	May 11, 2021

Web of science:	WOS:000653795500001
Scopus:	2-s2.0-85106597531
Chemical Abstracts:	2021:1256458
OpenAlex:	W3163946224

DB	Citing
Web of science	13
Scopus	12
OpenAlex	13