Nano Research

, Volume 10, Issue 6, pp 1924–1931 | Cite as

Atomic origin of the traps in memristive interface

  • Ye Tian
  • Lida Pan
  • Chuan Fei Guo
  • Qian LiuEmail author
Research Article


In recent years, trap-related interfacial transport phenomena have received great attention owing to their potential applications in resistive switching devices and photo detectors. Not long ago, one new type of memristive interface that is composed of F-doped SnO2 and Bi2S3 nano-network layers has demonstrated a bivariate-continuous-tunable resistance with a swift response comparable to the one in neuron synapses and with a brain-like memorizing capability. However, the resistive mechanism is still not clearly understood because of lack of evidence, and the limited improvement in the development of the interfacial device. By combining IV characterization, electron energy-loss spectroscopy, and first-principle calculation, we studied in detail the macro/micro features of the memristive interface using experimental and theoretical methods, and confirmed that its atomic origin is attributed to the traps induced by O-doping. This implies that impurity-doping might be an effective strategy for improving switching features and building new interfacial memristors.


memristance interface trap state first principle calculation 


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This research was supported by the National Key Research Program of China (No. 2016YFA0200403), National Natural Science Foundation of China (Nos. 10974037 and 11547163), the CAS Strategy Pilot program (No. XAD 09020300), Hunan Provincial Natural Science Foundation of China (No. 2015JJ6015) and Science and technology project of Yiyang (No. 2015JZ29). Y. T. thanks for the fellowship from the China Scholarship Council (CSC, No. 201508430266).

Supplementary material

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Atomic origin of the traps in memristive interface


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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Ye Tian
    • 1
    • 2
    • 5
  • Lida Pan
    • 3
    • 4
  • Chuan Fei Guo
    • 6
  • Qian Liu
    • 1
    Email author
  1. 1.CAS Center of Excellence for Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijingChina
  2. 2.School of Communication and Electronics EngineeringHunan City UniversityYiyangChina
  3. 3.Department of Physics and AstronomyVanderbilt UniversityNashvilleUSA
  4. 4.Institute of PhysicsChinese Academy of SciencesBeijingChina
  5. 5.Photonics Research Group, Department of Information TechnologyGhent University-IMECGhentBelgium
  6. 6.Department of Materials Science and EngineeringSouth University of Science and Technology of ChinaShenzhenChina

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