Impedance Spectroscopy Characterization in Bipolar Ta/MnOx/Pt Resistive Switching Thin Films

Title
Impedance Spectroscopy Characterization in Bipolar Ta/MnOx/Pt Resistive Switching Thin Films
Authors
박창록최선영유일환양민규배승묵이전국황진하
Keywords
Impedance Spectroscopy; bipolar resistive switching; Ta electrode; MnOx
Issue Date
2013-04
Publisher
Journal of the American Ceramic Society
Citation
VOL 96, NO 4, 1234-1239
Abstract
Impedance spectroscopy was applied to MnOx-based thin films prepared in symmetric and asymmetric electrode configurations, i.e., Pt/MnOx/Pt and Ta/MnOx/Pt, respectively. Equivalent circuit analysis suggests the presence of higher resistance surface layers adjacent the electrodes, in addition to a higher conductivity component at central portions of the MnOx thin films. The asymmetric configuration enables the Ta/MnOx interfacial layer to facilitate the redox transport of oxygen ions, where significant changes in resistance with the electric field are responsible for the higher on/off resistance ratio in Ta/MnOx/Pt. The higher dielectric constant and biasdependent capacitance and resistance support the coexistence of both oxidized surfaces and interfacial layers.
URI
http://pubs.kist.re.kr/handle/201004/44947
ISSN
00027820
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE