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Title: Spatially-resolved mapping of history-dependent coupled electrochemical and electronical behaviors of electroresistive NiO

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep06725· OSTI ID:1259685
 [1];  [2];  [3];  [3];  [4];  [3];  [5];  [5];  [6];  [7];  [8];  [3]
  1. The Univ. of Tokyo, Tokyo (Japan)
  2. Sungkyunkwan Univ., Suwon (Republic of Korea)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Queen's Univ. Belfast, Northern Ireland (United Kingdom)
  5. Univ. of Pennsylvania, Philadelphia, PA (United States)
  6. The Univ. of Tokyo, Tokyo (Japan); Nagoya Univ., Aichi (Japan); Japan Fine Ceramics Center, Aichi (Japan)
  7. The Univ. of Tokyo, Tokyo (Japan); PRESTO Japan Science and Technology Agency, Saitama (Japan)
  8. The Univ. of Tokyo, Tokyo (Japan); Japan Fine Ceramics Center, Aichi (Japan); Tohoku Univ., Miyagi (Japan)

We report that bias-induced oxygen ion dynamics underpins a broad spectrum of electroresistive and memristive phenomena in oxide materials. Although widely studied by device-level and local voltage-current spectroscopies, the relationship between electroresistive phenomena, local electrochemical behaviors, and microstructures remains elusive. Here, the interplay between history-dependent electronic transport and electrochemical phenomena in a NiO single crystalline thin filmwith a number of well-defined defect types is explored on the nanometer scale using an atomic force microscopy-based technique. A variety of electrochemically-active regions were observed and spatially resolved relationship between the electronic and electrochemical phenomena was revealed. The regions with pronounced electroresistive activity were further correlated with defects identified by scanning transmission electron microscopy. Using fully coupled mechanical-electrochemical modeling, we illustrate that the spatial distribution of strain plays an important role in electrochemical and electroresistive phenomena. These studies illustrate an approach for simultaneous mapping of the electronic and ionic transport on a single defective structure level such as dislocations or interfaces, and pave the way for creating libraries of defect-specific electrochemical responses.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
CNMS2012-230; 12024046; 2368093l 25106003; AC05-00OR22725; 2368093; 25106003
OSTI ID:
1259685
Alternate ID(s):
OSTI ID: 1286785
Journal Information:
Scientific Reports, Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (3)

Characterization of local electric properties of oxide materials using scanning probe microscopy techniques: A review journal October 2018
Atomic structures and oxygen dynamics of CeO2 grain boundaries journal February 2016
Novel Vertical 3D Structure of TaOx-based RRAM with Self-localized Switching Region by Sidewall Electrode Oxidation journal February 2016