3D Imaging of Ferroelectric Kinetics during Electrically Driven Switching

Ayoub, Mousa; Futterlieb, Hannes; Imbrock, Jörg; Denz, Cornélia

doi:10.1002/adma.201603325

Cited by 29 publications

(14 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, SHGM has mostly been used to acquire static 3D information about lithium niobate (LNO) . Recently, it has also been employed for 3D imaging of an electrically driven switching process in strontium barium niobate (SBN) . Here, we use confocal SHGM for both 2D‐ and 3D‐observation of DW dynamics close to the phase transition at the Curie temperature T C in TGS.…”

supporting

confidence: 92%

“…Other techniques allow for projections of the domain structure, e.g., X‐ray diffraction, optical diffraction, polarization microscopy, and non‐confocal second‐harmonic generation microscopy . Some techniques even allow for three‐dimensional (3D) imaging of the domain structure, e.g., confocal Raman spectroscopy, optical coherence tomography, and confocal second‐harmonic generation microscopy (SHGM) …”

mentioning

confidence: 99%

See 1 more Smart Citation

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

Wehmeier

Kämpfe

Haußmann

et al. 2017

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

We present the first in situ 3D observation of domain wall dynamics close to a ferroelectric–paraelectric phase transition, which we obtain via second‐harmonic generation microscopy (SHGM). Showing a pure second‐order phase transition at its Curie temperature of 49 °C, triglycine sulfate (TGS) is a model ferroelectric material to study such phase transitions. After annealing, in TGS various qualitatively different domain patterns, e.g., stripes or small lenticular domains, have been reported so far. By applying SHGM, we can show that these findings do not necessarily contradict each other. In fact, qualitatively different domain patterns may coexist in the same TGS sample at the same time.

show abstract

supporting

confidence: 92%

mentioning

confidence: 99%

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

Wehmeier

Kämpfe

Haußmann

et al. 2017

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

show abstract

“…32 A detailed description of our Cerenkov SHG microscope can be found elsewhere. 33 The operational principle is as follows: a tightly focused laser pulse (800 nm, 80 fs, 80 MHz, NA ¼ 0.79) is scanned in the xy-plane in different depths in the crystal. Whenever the laser focus passes a domain wall, Cerenkov SHG is generated.…”

mentioning

confidence: 99%

Local domain inversion in MgO-doped lithium niobate by pyroelectric field-assisted femtosecond laser lithography

Imbrock

Hanafi

Ayoub

et al. 2018

Applied Physics Letters

Self Cite

View full text Add to dashboard Cite

We explore a physical approach to invert ferroelectric domains in the volume of MgO-doped lithium niobate crystals without any external electric field. Permanent defect structures are created by focused infrared femtosecond laser pulses below the material surface along the polar axis followed by a thermal treatment. This procedure leads to an inversion of ferroelectric domains beneath and above the laser-induced filaments up to the surfaces of the crystal. All domain walls are straight and up to 800 μm long. We measure the domain width in dependence on the length of the filaments and the writing energy. The smallest achieved domain width and the domain spacing is 1 μm. We propose a model taking into account the temperature dependence of the pyroelectric field and thermally activated bulk charges to explain the mechanism of domain inversion. Our findings pave the way to all-optical printing of arbitrary ferroelectric domain structures for nonlinear photonic applications.

show abstract

“…In addition to SHG, confocal Raman spectroscopy, as well as optical coherence tomography, have been used to image embedded domain boundaries and ferroelectric domains of bulk LNO [92,94,104,105]. Optical techniques can also study polarization reversal processes, as shown in strontium barium niobate by Ayoub et al [106], or even analyze enhanced conductivity at domain walls (e.g., in LNO domain walls as shown by Godau et al [69]). Additionally, using light to probe ferroic properties opens the possibility to study time-resolved and dynamical processes [101,107].…”

Section: Light Interaction With Domain Wallsmentioning

confidence: 99%

Functional Ferroic Domain Walls for Nanoelectronics

2019

View full text Add to dashboard Cite

A prominent challenge towards novel nanoelectronic technologies is to understand and control materials functionalities down to the smallest scale. Topological defects in ordered solid-state (multi-)ferroic materials, e.g., domain walls, are a promising gateway towards alternative sustainable technologies. In this article, we review advances in the field of domain walls in ferroic materials with a focus on ferroelectric and multiferroic systems and recent developments in prototype nanoelectronic devices.

show abstract

3D Imaging of Ferroelectric Kinetics during Electrically Driven Switching

Cited by 29 publications

References 58 publications

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

Local domain inversion in MgO-doped lithium niobate by pyroelectric field-assisted femtosecond laser lithography

Functional Ferroic Domain Walls for Nanoelectronics

Contact Info

Product

Resources

About