Relationship between Q-factor and sample damping for contact resonance atomic force microscope measurement of viscoelastic properties

P. A. Yuya, D. C. Hurley, J. A. Turner

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Contact resonance AFM characterization techniques rely on the dynamics of the cantilever as it vibrates while in contact with the sample. In this article, the dependence of the quality factor of the vibration modes on the sample properties is shown to be a complex combination of beam and sample properties as well as the applied static tip force. Here the tip-sample interaction is represented as a linear spring and viscous dashpot as a model for sample (or contact) stiffness and damping. It is shown that the quality factor alone cannot be used to infer the damping directly. Experimental results for polystyrene and polypropylene are found to be in good agreement with predictions from the model developed. These results form the basis for mapping viscoelastic properties with nanoscale resolution.

Original languageEnglish (US)
Article number113528
JournalJournal of Applied Physics
Volume109
Issue number11
DOIs
StatePublished - Jun 1 2011

Fingerprint

Q factors
damping
microscopes
polypropylene
vibration mode
stiffness
polystyrene
atomic force microscopy
predictions
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Relationship between Q-factor and sample damping for contact resonance atomic force microscope measurement of viscoelastic properties. / Yuya, P. A.; Hurley, D. C.; Turner, J. A.

In: Journal of Applied Physics, Vol. 109, No. 11, 113528, 01.06.2011.

Research output: Contribution to journalArticle

@article{b24e6a46043442ad8095773131ac6054,
title = "Relationship between Q-factor and sample damping for contact resonance atomic force microscope measurement of viscoelastic properties",
abstract = "Contact resonance AFM characterization techniques rely on the dynamics of the cantilever as it vibrates while in contact with the sample. In this article, the dependence of the quality factor of the vibration modes on the sample properties is shown to be a complex combination of beam and sample properties as well as the applied static tip force. Here the tip-sample interaction is represented as a linear spring and viscous dashpot as a model for sample (or contact) stiffness and damping. It is shown that the quality factor alone cannot be used to infer the damping directly. Experimental results for polystyrene and polypropylene are found to be in good agreement with predictions from the model developed. These results form the basis for mapping viscoelastic properties with nanoscale resolution.",
author = "Yuya, {P. A.} and Hurley, {D. C.} and Turner, {J. A.}",
year = "2011",
month = "6",
day = "1",
doi = "10.1063/1.3592966",
language = "English (US)",
volume = "109",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "11",

}

TY - JOUR

T1 - Relationship between Q-factor and sample damping for contact resonance atomic force microscope measurement of viscoelastic properties

AU - Yuya, P. A.

AU - Hurley, D. C.

AU - Turner, J. A.

PY - 2011/6/1

Y1 - 2011/6/1

N2 - Contact resonance AFM characterization techniques rely on the dynamics of the cantilever as it vibrates while in contact with the sample. In this article, the dependence of the quality factor of the vibration modes on the sample properties is shown to be a complex combination of beam and sample properties as well as the applied static tip force. Here the tip-sample interaction is represented as a linear spring and viscous dashpot as a model for sample (or contact) stiffness and damping. It is shown that the quality factor alone cannot be used to infer the damping directly. Experimental results for polystyrene and polypropylene are found to be in good agreement with predictions from the model developed. These results form the basis for mapping viscoelastic properties with nanoscale resolution.

AB - Contact resonance AFM characterization techniques rely on the dynamics of the cantilever as it vibrates while in contact with the sample. In this article, the dependence of the quality factor of the vibration modes on the sample properties is shown to be a complex combination of beam and sample properties as well as the applied static tip force. Here the tip-sample interaction is represented as a linear spring and viscous dashpot as a model for sample (or contact) stiffness and damping. It is shown that the quality factor alone cannot be used to infer the damping directly. Experimental results for polystyrene and polypropylene are found to be in good agreement with predictions from the model developed. These results form the basis for mapping viscoelastic properties with nanoscale resolution.

UR - http://www.scopus.com/inward/record.url?scp=79959407290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79959407290&partnerID=8YFLogxK

U2 - 10.1063/1.3592966

DO - 10.1063/1.3592966

M3 - Article

AN - SCOPUS:79959407290

VL - 109

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 11

M1 - 113528

ER -