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Concurrent nonvolatile resistance and capacitance switching in LaAlO3

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Concurrent nonvolatile resistance and capacitance switching in LaAlO3

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Title: Concurrent nonvolatile resistance and capacitance switching in LaAlO3
Author: Wu, Shuxiang; Peng, Haiyang; Wu, Tom
Copyright year: 2011
Abstract: We report on the correlated nonvolatile resistance and capacitance switching in Pt/LaAlO3/Nb:SrTiO3 heterostructures. The pristine devices show the typical characteristics of a Schottky junction; however, after forming, a reverse bias switches the device into a low resistance and high capacitance state while a forward bias drives it into a high resistance and low capacitance state. Our experiments suggest that both the formation of conducting filaments and the modulation of interface barrier contribute to the resistance switching. Oxygen vacancies play critical roles in determining the switching characteristics and can be controlled in the process of device fabrication.
Subject: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials.
Type: Journal Article
Series/ Journal Title: Applied physics letters
School: School of Materials Science and Engineering
Rights: Applied Physics Letters © copyright 1997 American Institute of Physics. The journal's website is located at http://apl.aip.org/.
Version: Published version

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