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Correlative multimodal probing of ionically-mediated electromechanical phenomena in simple oxides.

Kim Y, Strelcov E, Hwang IR, Choi T, Park BH, Jesse S, Kalinin SV - Sci Rep (2013)

Bottom Line: The local interplay between the ionic and electronic transport in NiO is explored using correlative imaging by first-order reversal curve measurements in current-voltage and electrochemical strain microscopy.Electronic current and electromechanical response are observed in reversible and electroforming regime.These studies provide insight into local mechanisms of electroresistive phenomena in NiO and establish universal method to study interplay between the ionic and electronic transport and electrochemical transformations in mixed electronic-ionic conductors.

View Article: PubMed Central - PubMed

Affiliation: 1] The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 [2] School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 440-746, Republic of Korea.

ABSTRACT
The local interplay between the ionic and electronic transport in NiO is explored using correlative imaging by first-order reversal curve measurements in current-voltage and electrochemical strain microscopy. Electronic current and electromechanical response are observed in reversible and electroforming regime. These studies provide insight into local mechanisms of electroresistive phenomena in NiO and establish universal method to study interplay between the ionic and electronic transport and electrochemical transformations in mixed electronic-ionic conductors.

No MeSH data available.


Related in: MedlinePlus

ESM (a) amplitude and (b) phase images. (c) Selected ESM hysteresis loops as measured at different locations. (d) Topography and spatial maps of (e) work of switching (area under the loop) and (f) imprint (difference between x-intercepts). Scale bar is 200 nm.
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f1: ESM (a) amplitude and (b) phase images. (c) Selected ESM hysteresis loops as measured at different locations. (d) Topography and spatial maps of (e) work of switching (area under the loop) and (f) imprint (difference between x-intercepts). Scale bar is 200 nm.

Mentions: Shown in Figure 1(d) is surface topography of the NiO film, exhibiting a clear grain structure. The ESM line images are shown in Figures 1(a, b), illustrating the presence of ESM response of the pristine film. The locally varied ESM hysteresis loops can be observed as shown in Figure 1(c). The ESM hysteresis loops can be further analyzed over a dense grid of points33 to extract the maps of effective switching parameters, as shown in Figures 1(e, f). The spatial maps of switching parameters in Figures 1(e, f) also show locally different electrochemical performance24.


Correlative multimodal probing of ionically-mediated electromechanical phenomena in simple oxides.

Kim Y, Strelcov E, Hwang IR, Choi T, Park BH, Jesse S, Kalinin SV - Sci Rep (2013)

ESM (a) amplitude and (b) phase images. (c) Selected ESM hysteresis loops as measured at different locations. (d) Topography and spatial maps of (e) work of switching (area under the loop) and (f) imprint (difference between x-intercepts). Scale bar is 200 nm.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3795354&req=5

f1: ESM (a) amplitude and (b) phase images. (c) Selected ESM hysteresis loops as measured at different locations. (d) Topography and spatial maps of (e) work of switching (area under the loop) and (f) imprint (difference between x-intercepts). Scale bar is 200 nm.
Mentions: Shown in Figure 1(d) is surface topography of the NiO film, exhibiting a clear grain structure. The ESM line images are shown in Figures 1(a, b), illustrating the presence of ESM response of the pristine film. The locally varied ESM hysteresis loops can be observed as shown in Figure 1(c). The ESM hysteresis loops can be further analyzed over a dense grid of points33 to extract the maps of effective switching parameters, as shown in Figures 1(e, f). The spatial maps of switching parameters in Figures 1(e, f) also show locally different electrochemical performance24.

Bottom Line: The local interplay between the ionic and electronic transport in NiO is explored using correlative imaging by first-order reversal curve measurements in current-voltage and electrochemical strain microscopy.Electronic current and electromechanical response are observed in reversible and electroforming regime.These studies provide insight into local mechanisms of electroresistive phenomena in NiO and establish universal method to study interplay between the ionic and electronic transport and electrochemical transformations in mixed electronic-ionic conductors.

View Article: PubMed Central - PubMed

Affiliation: 1] The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 [2] School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 440-746, Republic of Korea.

ABSTRACT
The local interplay between the ionic and electronic transport in NiO is explored using correlative imaging by first-order reversal curve measurements in current-voltage and electrochemical strain microscopy. Electronic current and electromechanical response are observed in reversible and electroforming regime. These studies provide insight into local mechanisms of electroresistive phenomena in NiO and establish universal method to study interplay between the ionic and electronic transport and electrochemical transformations in mixed electronic-ionic conductors.

No MeSH data available.


Related in: MedlinePlus