Second harmonic detection in the electrochemical strain microscopy of Ag-ion conducting glass

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Title
Second harmonic detection in the electrochemical strain microscopy of Ag-ion conducting glass
Author(s)
Sang Mo Yang; M. Baris Okatan; M. Parans Paranthaman; Stephen Jesse; Tae Won Noh; Kalinin S.V.
Publication Date
2014-11
Journal
APPLIED PHYSICS LETTERS, v.105, no.19, pp.193106 -
Publisher
AMER INST PHYSICS
Abstract
The first and second harmonic electromechanical responses and their cross-correlation in Ag-ion conducting glass were investigated using band-excitation electrochemical strain microscopy (ESM). Consecutive ESM images with increasing magnitudes of the applied AC voltage allowed observation of not only reversible surface displacement but also irreversible silver nanoparticle formation above a certain threshold voltage. The second harmonic ESM response was anti-correlated with the first harmonic response in many local regions. Furthermore, the nucleation sites of silver nanoparticles were closely related to the anti-correlated regions, specifically, with low second harmonic and high first harmonic ESM responses. The possible origins of the second harmonic ESM response are discussed.
URI
https://pr.ibs.re.kr/handle/8788114/860
ISSN
0003-6951
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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