Understanding 2D atomic resolution imaging of the calcite surface in water by frequency modulation atomic force microscopy

No Thumbnail Available

Access rights

restrictedAccess

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2016-09-09

Major/Subject

Mcode

Degree programme

Language

en

Pages

1-9

Series

Nanotechnology, Volume 27, issue 41

Abstract

Frequency modulation atomic force microscopy (FM-AFM) experiments were performed on the calcite (1014) surface in pure water, and a detailed analysis was made of the 2D images at a variety of frequency setpoints. We observed eight different contrast patterns that reproducibly appeared in different experiments and with different measurement parameters. We then performed systematic free energy calculations of the same system using atomistic molecular dynamics to obtain an effective force field for the tip-surface interaction. By using this force field in a virtual AFM simulation we found that each experimental contrast could be reproduced in our simulations by changing the setpoint, regardless of the experimental parameters. This approach offers a generic method for understanding the wide variety of contrast patterns seen on the calcite surface in water, and is generally applicable to AFM imaging in liquids.

Description

| openaire: EC/FP7/610446/EU//PAMS

Keywords

atomic force microscopy, calcite, modelling, solid-liquid

Other note

Citation

Tracey, J, Miyazawa, K, Spijker, P, Miyata, K, Reischl, B, Canova, F F, Rohl, A L, Fukuma, T & Foster, A S 2016, ' Understanding 2D atomic resolution imaging of the calcite surface in water by frequency modulation atomic force microscopy ', Nanotechnology, vol. 27, no. 41, 415709, pp. 1-9 . https://doi.org/10.1088/0957-4484/27/41/415709