Crossref journal-article
AIP Publishing
Applied Physics Letters (317)
Abstract

A multifrequency open loop Kelvin probe force microscopy (KPFM) approach utilizing photothermal as opposed to electrical excitation is developed. Photothermal band excitation (PthBE)-KPFM is implemented here in a grid mode on a model test sample comprising a metal-insulator junction with local charge-patterned regions. Unlike the previously described open loop BE-KPFM, which relies on capacitive actuation of the cantilever, photothermal actuation is shown to be highly sensitive to the electrostatic force gradient even at biases close to the contact potential difference (CPD). PthBE-KPFM is further shown to provide a more localized measurement of true CPD in comparison to the gold standard ambient KPFM approach, amplitude modulated KPFM. Finally, PthBE-KPFM data contain information relating to local dielectric properties and electronic dissipation between tip and sample unattainable using conventional single frequency KPFM approaches.

Bibliography

Collins, L., Jesse, S., Balke, N., Rodriguez, B. J., Kalinin, S., & Li, Q. (2015). Band excitation Kelvin probe force microscopy utilizing photothermal excitation. Applied Physics Letters, 106(10).

Authors 6
  1. Liam Collins (first)
  2. Stephen Jesse (additional)
  3. Nina Balke (additional)
  4. Brian J. Rodriguez (additional)
  5. Sergei Kalinin (additional)
  6. Qian Li (additional)
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Dates
Type When
Created 10 years, 5 months ago (March 13, 2015, 1 p.m.)
Deposited 2 years, 2 months ago (June 27, 2023, 9:14 p.m.)
Indexed 1 month ago (July 30, 2025, 7:03 a.m.)
Issued 10 years, 5 months ago (March 9, 2015)
Published 10 years, 5 months ago (March 9, 2015)
Published Online 10 years, 5 months ago (March 13, 2015)
Published Print 10 years, 5 months ago (March 9, 2015)
Funders 0

None

@article{Collins_2015, title={Band excitation Kelvin probe force microscopy utilizing photothermal excitation}, volume={106}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4913910}, DOI={10.1063/1.4913910}, number={10}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Collins, Liam and Jesse, Stephen and Balke, Nina and Rodriguez, Brian J. and Kalinin, Sergei and Li, Qian}, year={2015}, month=mar }