Long-range strains and the effects of applied field at 180° ferroelectric domain walls in lithium niobate

2004 ◽  
Vol 69 (6) ◽  
Author(s):  
Terrence Jach ◽  
Sungwon Kim ◽  
Venkatraman Gopalan ◽  
Stephen Durbin ◽  
David Bright
Keyword(s):  
Lithium Niobate ◽  
Long Range ◽  
Applied Field ◽  
Domain Walls ◽  
Ferroelectric Domain

scholarly journals Tunable Non-Volatile Memory by Conductive Ferroelectric Domain Walls in Lithium Niobate Thin Films

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 804
Author(s):  
Thomas Kämpfe ◽  
Bo Wang ◽  
Alexander Haußmann ◽  
Long-Qing Chen ◽  
Lukas M. Eng
Keyword(s):  
Thin Film ◽  
Domain Wall ◽  
Lithium Niobate ◽  
Applied Voltage ◽  
Room Temperature ◽  
Domain Walls ◽  
Ferroelectric Domain ◽  
Stable Set ◽  
Non Volatile Memory ◽  
Binary Information

Ferroelectric domain wall conductance is a rapidly growing field. Thin-film lithium niobate, as in lithium niobate on insulators (LNOI), appears to be an ideal template, which is tuned by the inclination of the domain wall. Thus, the precise tuning of domain wall inclination with the applied voltage can be used in non-volatile memories, which store more than binary information. In this study, we present the realization of this concept for non-volatile memories. We obtain remarkably stable set voltages by the ferroelectric nature of the device as well as a very large increase in the conduction, by at least five orders of magnitude at room temperature. Furthermore, the device conductance can be reproducibly tuned over at least two orders of magnitude. The observed domain wall (DW) conductance tunability by the applied voltage can be correlated with phase-field simulated DW inclination evolution upon poling. Furthermore, evidence for polaron-based conduction is given.

Local probing of the interaction between intrinsic defects and ferroelectric domain walls in lithium niobate

2013 ◽  
Vol 102 (4) ◽  
pp. 042905 ◽  
Author(s):  
Greg Stone ◽  
Donghwa Lee ◽  
Haixuan Xu ◽  
Simon R. Phillpot ◽  
Volkmar Dierolf
Keyword(s):  
Lithium Niobate ◽  
Domain Walls ◽  
Ferroelectric Domain ◽  
Intrinsic Defects

Imaging of ferroelectric domain walls by electron holography

1992 ◽  
Vol 50 (1) ◽  
pp. 246-247
Author(s):  
Xiao Zhang
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Domain Walls ◽  
Ferroelectric Domain ◽  
Object Wave ◽  
Electron Holography ◽  
High Resolution Imaging ◽  
Quantitative Measurements ◽  
Resolution Imaging ◽  
Electron Microscopes

Electron holography has recently been available to modern electron microscopy labs with the development of field emission electron microscopes. The unique advantage of recording both amplitude and phase of the object wave makes electron holography a effective tool to study electron optical phase objects. The visibility of the phase shifts of the object wave makes it possible to directly image the distributions of an electric or a magnetic field at high resolution. This work presents preliminary results of first high resolution imaging of ferroelectric domain walls by electron holography in BaTiO3 and quantitative measurements of electrostatic field distribution across domain walls.

scholarly journals Charged Exciton Kinetics in Monolayer MoSe2 near Ferroelectric Domain Walls in Periodically Poled LiNbO3

Nano Letters ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 959-966
Author(s):  
Pedro Soubelet ◽  
Julian Klein ◽  
Jakob Wierzbowski ◽  
Riccardo Silvioli ◽  
Florian Sigger ◽  
...  
Keyword(s):  
Domain Walls ◽  
Ferroelectric Domain ◽  
Periodically Poled ◽  
Charged Exciton

scholarly journals Mobile and immobile boundaries in ferroelectric films

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
P. Yudin ◽  
K. Shapovalov ◽  
T. Sluka ◽  
J. Peräntie ◽  
H. Jantunen ◽  
...  
Keyword(s):  
Long Range ◽  
Domain Walls ◽  
Ferroelectric Properties ◽  
Practical Importance ◽  
Dynamic Responses ◽  
Ferroelectric Films ◽  
Domain Structures ◽  
Mobile Interfaces ◽  
Ferroelastic Domains ◽  
Viable Method

AbstractThe intrinsic mobile interfaces in ferroelectrics—the domain walls can drive and enhance diverse ferroelectric properties, essential for modern applications. Control over the motion of domain walls is of high practical importance. Here we analyse theoretically and show experimentally epitaxial ferroelectric films, where mobile domain walls coexist and interact with immobile growth-induced interfaces—columnar boundaries. Whereas these boundaries do not disturb the long-range crystal order, they affect the behaviour of domain walls in a peculiar selective manner. The columnar boundaries substantially modify the behaviour of non-ferroelastic domains walls, but have negligible impact on the ferroelastic ones. The results suggest that introduction of immobile boundaries into ferroelectric films is a viable method to modify domain structures and dynamic responses at nano-scale that may serve to functionalization of a broader range of ferroelectric films where columnar boundaries naturally appear as a result of the 3D growth.

Light-mediated ferroelectric domain engineering and micro-structuring of lithium niobate crystals

2011 ◽  
Vol 6 (4) ◽  
pp. 526-548 ◽  
Author(s):  
C.Y.J. Ying ◽  
A.C. Muir ◽  
C.E. Valdivia ◽  
H. Steigerwald ◽  
C.L. Sones ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Ferroelectric Domain ◽  
Domain Engineering ◽  
Micro Structuring ◽  
Lithium Niobate Crystals

scholarly journals Linear Cherenkov radiation in ferroelectric domain walls

2017 ◽  
Vol 25 (22) ◽  
pp. 27818 ◽  
Author(s):  
Ji Yang ◽  
Xiaohui Zhao ◽  
Haigang Liu ◽  
Xianfeng Chen
Keyword(s):  
Cherenkov Radiation ◽  
Domain Walls ◽  
Ferroelectric Domain

Deepening of domains at e-beam writing on the -Z surface of lithium niobate

2021 ◽  
Author(s):  
Lyudmila Kokhanchik ◽  
Evgenii Emelin ◽  
Vadim Vladimirovch Sirotkin ◽  
Alexander Svintsov
Keyword(s):  
Surface Layer ◽  
Electron Beam ◽  
Lithium Niobate ◽  
Electric Field ◽  
Domain Walls ◽  
Normal Component ◽  
Beam Current ◽  
Near Surface ◽  
Domain Structures ◽  
Sign Inversion

Abstract The focus of the study was to investigate the peculiarities of the domains created by electron beam (e-beam) in a surface layer of congruent lithium niobate, which comparable to a depth of electron beam charge penetration. Direct e-beam writing (DEBW) of different domain structures with a scanning electron microscope was performed on the polar -Z cut. Accelerating voltage 15 kV and e-beam current 100 pA were applied. Different patterns of local irradiated squares were used to create domain structures and single domains. No domain contrast was observed by the PFM technique. Based on chemical etching, it was found that the vertices of the domains created do not reach the surface level. The average deepening of the domain vertices was several hundred nanometers and varied depending on the irradiation dose and the location of the irradiated areas (squares) relative to each other. Computer simulation was applied to analyze the spatial distribution of the electric field in the various irradiated patterns. The deepening was explained by the fact that in the near-surface layer there is a sign inversion of the normal component of the electric field strength vector, which controls the domain formation during DEBW. Thus, with the help of e-beam, domains were created completely located in the bulk, in contrast to the domains that are nucleated on the surface of the -Z cut during the polarization inversion with AFM tip. The detected deepening of e-beam domains suggests the possibility of creating the “head-to-head” domain walls in the near-surface layer lithium niobate by DEBW.

Sign in / Sign up

Export Citation Format

Share Document