Investigation of nanoscale interactions by means of subharmonic excitation

Matteo Chiesa; Karim Gadelrab; Marco Stefancich; Peter Armstrong; Guang Li; Tewfik Souier; Neil H. Thomson; Victor Barcons; Josep Font; Albert Verdaguer; Michael A. Phillips; Sergio Santos

doi:10.1021/jz300576p

Investigation of nanoscale interactions by means of subharmonic excitation

Matteo Chiesa^*, Karim Gadelrab, Marco Stefancich, Peter Armstrong, Guang Li, Tewfik Souier, Neil H. Thomson, Victor Barcons, Josep Font, Albert Verdaguer, Michael A. Phillips, Sergio Santos

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Multifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.

Original language	English
Pages (from-to)	2125-2129
Number of pages	5
Journal	Journal of Physical Chemistry Letters
Volume	3
Issue number	16
DOIs	https://doi.org/10.1021/jz300576p
Publication status	Published - Aug 16 2012
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Physical and Theoretical Chemistry

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abstract = "Multifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.",

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doi = "10.1021/jz300576p",

language = "English",

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journal = "Journal of Physical Chemistry Letters",

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TY - JOUR

T1 - Investigation of nanoscale interactions by means of subharmonic excitation

AU - Chiesa, Matteo

AU - Gadelrab, Karim

AU - Stefancich, Marco

AU - Armstrong, Peter

AU - Li, Guang

AU - Souier, Tewfik

AU - Thomson, Neil H.

AU - Barcons, Victor

AU - Font, Josep

AU - Verdaguer, Albert

AU - Phillips, Michael A.

AU - Santos, Sergio

PY - 2012/8/16

Y1 - 2012/8/16

N2 - Multifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.

AB - Multifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.

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JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 16

ER -

Investigation of nanoscale interactions by means of subharmonic excitation

Abstract

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