中国物理B ›› 2014, Vol. 23 ›› Issue (2): 27702-027702.doi: 10.1088/1674-1056/23/2/027702

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Asymmetric reversible diode-like resistive switching behaviors in ferroelectric BaTiO3 thin films

张飞a, 林远彬a, 吴昊a, 苗青a, 巩纪军a, 陈继培a, 吴素娟a, 曾敏a, 高兴森a, 刘俊明b   

  1. a Institute for Advanced Materials, South China Normal University, Guangzhou 510006, China;
    b Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2013-03-26 修回日期:2013-05-06 出版日期:2013-12-12 发布日期:2013-12-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51072061, 51031004, and 51272078), the Program for Changjiang Scholars and Innovative Research Team in University, and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China.

Asymmetric reversible diode-like resistive switching behaviors in ferroelectric BaTiO3 thin films

Zhang Fei (张飞)a, Lin Yuan-Bin (林远彬)a, Wu Hao (吴昊)a, Miao Qing (苗青)a, Gong Ji-Jun (巩纪军)a, Chen Ji-Pei (陈继培)a, Wu Su-Juan (吴素娟)a, Zeng Min (曾敏)a, Gao Xing-Sen (高兴森)a, Liu Jun-Ming (刘俊明)b   

  1. a Institute for Advanced Materials, South China Normal University, Guangzhou 510006, China;
    b Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2013-03-26 Revised:2013-05-06 Online:2013-12-12 Published:2013-12-12
  • Contact: Gao Xing-Sen, Liu Jun-Ming E-mail:xingsengao@scnu.edu.cn;liujm@nju.edu.cn
  • About author:77.84.-s; 77.80.-e; 73.50.-h; 72.20.-i
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51072061, 51031004, and 51272078), the Program for Changjiang Scholars and Innovative Research Team in University, and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China.

摘要: In this work, the resistive switching behaviors of ferroelectrictric BaTiO3/La0.67Sr0.33MnO3 heterostructures deposited by pulsed laser deposition are investigated. The BaTiO3 films show both well-established P–E hysteresis loops, and asymmetric reversible diode-like resistive switching behaviors, involving no forming process. It is found that both the ON/OFF ratio and the stability of resistive switching are substantially dependent on operation voltage (Vmax). At a Vmax of 15 V, a large ON/OFF resistance ratio above 1000 is obtained at a Vmax of 15 V, which is able to maintain stability up to 70-switching cycles. The above resistive switching behaviors can be understood by modulating interface Schottky barriers as demonstrated by I–V curve fitting.

关键词: ferroelectrics, resistive switching, RRAM, pulsed laser deposition

Abstract: In this work, the resistive switching behaviors of ferroelectrictric BaTiO3/La0.67Sr0.33MnO3 heterostructures deposited by pulsed laser deposition are investigated. The BaTiO3 films show both well-established P–E hysteresis loops, and asymmetric reversible diode-like resistive switching behaviors, involving no forming process. It is found that both the ON/OFF ratio and the stability of resistive switching are substantially dependent on operation voltage (Vmax). At a Vmax of 15 V, a large ON/OFF resistance ratio above 1000 is obtained at a Vmax of 15 V, which is able to maintain stability up to 70-switching cycles. The above resistive switching behaviors can be understood by modulating interface Schottky barriers as demonstrated by I–V curve fitting.

Key words: ferroelectrics, resistive switching, RRAM, pulsed laser deposition

中图分类号:  (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)

  • 77.84.-s
77.80.-e (Ferroelectricity and antiferroelectricity) 73.50.-h (Electronic transport phenomena in thin films) 72.20.-i (Conductivity phenomena in semiconductors and insulators)