LiNbO3-based bimorph piezoactuator for fast X-Ray experiments: Resonant mode

Marchenkov, N. V.; Kulikov, A. S.; Targonsky, A. V.; Eliovich, Ya. A.; Pisarevsky, Yu. V.; Seregin, A. Yu.; Благов, А. Е.; Kovalchuk, M. V.

doi:10.1016/j.sna.2019.04.028

Cited by 25 publications

(6 citation statements)

References 25 publications

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“…2). Descriptions of the fastening design, functional characteristics and features of the piezoactuator usage in X-ray diffraction experiments are given elsewhere (Blagov et al, 2016(Blagov et al, , 2017Kulikov et al, 2019;Marchenkov et al, 2019). It was also used as a fasttunable adaptive element for in situ study of the external mechanical stress in crystals by X-ray diffraction in the experiment with time resolution (Eliovich et al, 2018).…”

Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

“…At that time, however, another problem remained, namely that the angle step in the standard experimental scheme is equal to 0.0002 = 3.49 mrad, which does not allow theoretical DRCs to be recorded, especially for high orders of reflection, with sufficient accuracy. This problem was solved by using a new method of DRC detection based on an adaptive piezoactuator (Bykov et al, 2014;Blagov et al, 2016Blagov et al, , 2017Eliovich et al, 2018;Marchenkov et al, 2019), which allows the DRCs to be recorded in increments of 0.01 mrad or less. In this work, a new experimental scheme is used to study SR diffraction in a single crystal of paratellurite (TeO 2 ).…”

Section: Introductionmentioning

confidence: 99%

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Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

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First results are presented for synchrotron radiation diffraction in a paratellurite (TeO2) single crystal investigated with a new experimental scheme consisting of a standard monochromator and a relatively narrow slit for collimation and monochromatization of an incident beam. The Bragg case reflection geometry is used. The monochromator, a pair of Si crystals, maintains the initial direction of the beam propagation. The theory is developed for a precise description of the instrumental function in such a scheme. A new rocking curve registration technique with use of an adaptive bending piezoactuator is applied for the first time with the aim to record the narrow diffraction peaks with high accuracy. A sample is attached to one edge of the bidomain lithium niobate single crystal piezoactuator used. The piezoactuator is bent under the influence of an electric field and it changes the angular position of the sample with a very small step. The experimental curves are compared with the calculated diffraction rocking curves of a perfect paratellurite crystal, both the theoretical one and the one calculated taking into account the instrumental function. An instrumental function account allows a complete coincidence of the simulated curves with the experimental results to be obtained if the experimental curve does not coincide with the theoretical rocking curve. A small discrepancy between the theory and the experimental data has been discovered in cases where the incident beam is sufficiently collimated and monochromated. This indicates the presence of a certain number of lattice defects in the sample under study.

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Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

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“…It depends on the operating mode and determines the maximum temporal resolution, which is microseconds for this technique. Experimental results (Marchenkov et al, 2019) indicate that the limit determined by the frequency can be reached only with thirdand fourth-generation synchrotron sources and fast detectors. Scintillation detectors or detectors based on avalanche photodiodes can be used (Kishimoto et al, 1998).…”

Section: Adaptive X-ray Optics and Time-resolved Studiesmentioning

confidence: 98%

“…The frequency limits the maximum temporal resolution to microseconds. At a second-generation synchrotron, a rocking curve was recorded with a temporal resolution of 108 ms (Marchenkov et al, 2019). The rocking curve acquisition time achieved in transmission geometry with an X-ray tube was 1.5 s (Eliovich et al, 2018).…”

Section: Adaptive X-ray Optics and Time-resolved Studiesmentioning

confidence: 99%

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Akkuratov¹,

Благов²,

Eliovich³

et al. 2022

J Appl Cryst

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A novel laboratory diffractometer for time-resolved high-resolution X-ray diffraction studies of reversible and irreversible processes in crystalline materials under uniaxial compression and vibration is described. Temporal resolution up to milliseconds for double-crystal and up to tens of seconds for triple-crystal diffraction experiments was achieved with a single adaptive bending X-ray optics element. Design solutions and techniques for applying and controlling uniaxial compression and vibration for in situ time-resolved studies are described. Results are presented for various static and dynamic load experiments, controlled by a system based on the TANGO Controls framework. Rocking curves of paratellurite (TeO2) under quasi-static compression and lithium fluoride (LiF) under ultrasonic vibration were measured with temporal resolution. Reciprocal-space maps of LiF under static compression and quartz (SiO2) under ultrasonic vibration were collected.

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“…Along with diffusion annealing of LN crystals near the Curie point, bidomain ferroelectric structures can be alternatively produced by annealing of crystals subjected to proton exchange [35][36][37][38] and heat treatment of crystals in an inhomogeneous thermal field [39][40][41][42]. Bidomain crystals are also promising as materials for the fabrication of precision actuators [39,[43][44][45][46][47][48][49], low-frequency vibration gages [50] and magnetic field sensors (as a constituent of composite magnetoelectric materials) [51] as well as for waste heat power systems [52,53].…”

Section: Introductionmentioning

confidence: 99%

Degradation of the electrical conductivity of charged domain walls in reduced lithium niobate crystals

Kislyuk¹,

Ilina²,

Кубасов³

et al. 2022

MoEM

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In this work, the effect of long-term room temperature exposure on the electrical conductivity of the charged domain wall (CDWs) in nonpolar x-cut congruent lithium niobate (LiNbO3, LN) crystals has been studied. Bidomain ferroelectric structures containing head-to-head charged domain boundaries have been produced by diffusion annealing in air near the Curie temperature and by infrared annealing. The crystals have been reduction annealed in a nitrogen atmosphere for the formation of color centers and growth of the electrical conductivity. The current measured during the recording of the I-V curves of the specimens using scanning probe microscope after room temperature exposure for 91 days has been found to decrease. The effect of storage conditions on the electrical conductivity of the CDWs has been studied. Degradation of the electrical conductivity does not originate from the effect of environment on the crystal surface. It has been hypothesized that the degradation is caused by distribution of charge carriers shielding the bound charge of the CDWs.

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LiNbO3-based bimorph piezoactuator for fast X-Ray experiments: Resonant mode

Cited by 25 publications

References 25 publications

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Degradation of the electrical conductivity of charged domain walls in reduced lithium niobate crystals

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LiNbO3-based bimorph piezoactuator for fast X-Ray experiments: Resonant mode

Cited by 25 publications

References 25 publications

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

﻿Degradation of the electrical conductivity of charged domain walls in reduced lithium niobate crystals

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Degradation of the electrical conductivity of charged domain walls in reduced lithium niobate crystals