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This article is cited in 12 scientific papers (total in 12 papers)
INSTRUMENTS AND METHODS OF INVESTIGATION
Time-resolved X-ray reciprocal space mapping of a crystal in an external electric field
N. V Marchenkovab, A. G. Kulikovab, I. I. Atkninab, A. A. Petrenkoab, A. E. Blagovab, M. V. Kovalchukab a Shubnikov Institute of Crystallography, Federal Scientific Research Centre "Crystallography and Photonics", Russian Academy of Sciences, Moscow
b National Research Center "Kurchatov Institute", Moscow
Abstract:
A reciprocal space mapping technique with the use of triple-crystal time-resolved X-ray diffractometry has been developed and implemented using a laboratory X-ray source for the first time. This technique allows studying fast processes that occur in a sample under external influences that cause reversible deformations of its crystal lattice. It also allows distinguishing these processes in time and distinguishing different types of crystal deformations caused by these actions. The essence of the technique is to measure time dependences of the intensity for each point of the reciprocal space in the vicinity of the diffraction maximum in three-axis diffraction geometry by subjecting the sample to repeated and structurally identical action of a strong electric field, with the subsequent construction of the time evolution of the two-dimensional reciprocal space map. The time resolution is achieved with the use of a high-speed multichannel intensity analyzer synchronized with a high-voltage source. The results of measuring the reciprocal space maps with a laboratory radiation source with a time resolution of up to 10 ms are demonstrated for a piezoelectric crystal of lanthanum gallium silicate subjected to an external electric field with the field strength 3.08 kV mm$^{-1}$, which is close to the sample breakdown value.
Received: January 15, 2018 Revised: May 6, 2018 Accepted: June 6, 2018
Citation:
N. V Marchenkov, A. G. Kulikov, I. I. Atknin, A. A. Petrenko, A. E. Blagov, M. V. Kovalchuk, “Time-resolved X-ray reciprocal space mapping of a crystal in an external electric field”, UFN, 189:2 (2019), 187–194; Phys. Usp., 62:2 (2019), 179–185
Linking options:
https://www.mathnet.ru/eng/ufn6230 https://www.mathnet.ru/eng/ufn/v189/i2/p187
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Abstract page: | 190 | Full-text PDF : | 20 | References: | 22 | First page: | 4 |
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