Options
Thickness, humidity, and polarization dependent ferroelectric switching and conductivity in Mg doped lithium niobate
Date Issued
2015-12-28
Date Available
2016-01-13T17:00:53Z
Abstract
Mg doped lithium niobate (Mg:LN) exhibits several advantages over undoped LN such as resistance to photorefraction, lower coercive fields, and p-type conductivity that is particularly pronounced at domain walls and opens up a range of applications, e.g., in domain wall electronics. Engineering of precise domain patterns necessitates well founded knowledge of switching kinetics, which can differ significantly from that of undoped LN. In this work, the role of humidity and sample composition in polarization reversal has been investigated under application of the same voltage waveform. Control over domain sizes has been achieved by varying the sample thickness and initial polarization as well as atmospheric conditions. In addition, local introduction of proton exchanged phases allows for inhibition of domain nucleation or destabilization, which can be utilized to modify domain patterns. Polarization dependent current flow, attributed to charged domain walls and band bending, demonstrates the rectifying ability of Mg:LN in combination with suitable metal electrodes that allow for further tailoring of conductivity.
Sponsorship
European Commission - Seventh Framework Programme (FP7)
Science Foundation Ireland
Other Sponsorship
Swedish Research Council
CICECO-Aveiro Institute of Materials
Type of Material
Journal Article
Publisher
American Institute of Physics
Journal
Journal of Applied Physics
Volume
118
Copyright (Published Version)
2015 AIP Publishing LLC
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
File(s)
Loading...
Name
Neumayer_J_Appl_Phys_118_244103_2015.pdf
Size
1.8 MB
Format
Adobe PDF
Checksum (MD5)
1b71b22d30a2dd4942b4cea1ff76378d
Owning collection
Mapped collections