Ferroelectric Field Effect Induced Asymmetric Resistive Switching Effect in BaTiO3/Nb:SrTiO3 Epitaxial Heterojunctions

Caihong Jia; Jiachen Li; Guang Yang; Yonghai Chen; Weifeng Zhang

doi:10.1186/s11671-018-2513-6

Nanoscale Research Letters (Apr 2018)

Ferroelectric Field Effect Induced Asymmetric Resistive Switching Effect in BaTiO3/Nb:SrTiO3 Epitaxial Heterojunctions

Caihong Jia,
Jiachen Li,
Guang Yang,
Yonghai Chen,
Weifeng Zhang

Affiliations

Caihong Jia: Henan Key Laboratory of Photovoltaic Materials, Laboratory of Low-Dimensional Materials Science, School of Physics and Electronics, Henan University
Jiachen Li: Henan Key Laboratory of Photovoltaic Materials, Laboratory of Low-Dimensional Materials Science, School of Physics and Electronics, Henan University
Guang Yang: Henan Key Laboratory of Photovoltaic Materials, Laboratory of Low-Dimensional Materials Science, School of Physics and Electronics, Henan University
Yonghai Chen: Key Laboratory of Semiconductor Materials, Institute of Semiconductors, Chinese Academy of Sciences
Weifeng Zhang: Henan Key Laboratory of Photovoltaic Materials, Laboratory of Low-Dimensional Materials Science, School of Physics and Electronics, Henan University

DOI: https://doi.org/10.1186/s11671-018-2513-6
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 6

Abstract

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Abstract Asymmetric resistive switching processes were observed in BaTiO3/Nb:SrTiO3 epitaxial heterojunctions. The SET switching time from the high-resistance state to low-resistance state is in the range of 10 ns under + 8 V bias, while the RESET switching time from the low-resistance state to high-resistance state is in the range of 105 ns under − 8 V bias. The ferroelectric polarization screening controlled by electrons and oxygen vacancies at the BaTiO3/Nb:SrTiO3 heterointerface is proposed to understand this switching time difference. This switch with fast SET and slow RESET transition may have potential applications in some special regions.

Published in Nanoscale Research Letters

ISSN: 1931-7573 (Print); 1556-276X (Online)
Publisher: SpringerOpen
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.springer.com/journal/11671

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