Please use this identifier to cite or link to this item: https://doi.org/10.1002/adma.200602837
Title: A new scenario in probe local oxidation: Transient pressure-wave-assisted ionic spreading and oxide pattern formation
Authors: Xie, X.N. 
Chung, H.J. 
Liu, Z.J.
Yang, S.-W.
Sow, C.H. 
Wee, A.T.S. 
Issue Date: 17-Sep-2007
Citation: Xie, X.N., Chung, H.J., Liu, Z.J., Yang, S.-W., Sow, C.H., Wee, A.T.S. (2007-09-17). A new scenario in probe local oxidation: Transient pressure-wave-assisted ionic spreading and oxide pattern formation. Advanced Materials 19 (18) : 2618-2623. ScholarBank@NUS Repository. https://doi.org/10.1002/adma.200602837
Abstract: A new mechanism of shock-wave-assisted OH- ionic spreading in AFM anodic oxidation which is at work under relatively high tip biases, high tip currents, and high humidity conditions is reported. This involves the transport of OH- reactants by transient shock-wave (SW) propagation. SW propagation can drastically influence the formation of oxide patterns by fully or partially extending the distribution of OH- oxidants. The ultrafast propagation of transient shock waves significantly extends the lateral distribution of the OH- reactant, leading to the formation of unique oxide patterns. A hydrodynamic simulation was performed to quantitatively describe the ionic- spreading mechanism in terms of shock pressure and propagation distance.
Source Title: Advanced Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/112574
ISSN: 09359648
DOI: 10.1002/adma.200602837
Appears in Collections:Staff Publications

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