Resolving Point Defects in the Hydration Structure of Calcite (10.4) with Three-Dimensional Atomic Force Microscopy

Show full item record



Permalink

http://hdl.handle.net/10138/308108

Citation

Soengen , H , Reischl , B , Miyata , K , Bechstein , R , Raiteri , P , Rohl , A L , Gale , J D , Fukuma , T & Kuehnle , A 2018 , ' Resolving Point Defects in the Hydration Structure of Calcite (10.4) with Three-Dimensional Atomic Force Microscopy ' , Physical Review Letters , vol. 120 , no. 11 , 116101 . https://doi.org/10.1103/PhysRevLett.120.116101

Title: Resolving Point Defects in the Hydration Structure of Calcite (10.4) with Three-Dimensional Atomic Force Microscopy
Author: Soengen, Hagen; Reischl, Bernhard; Miyata, Kazuki; Bechstein, Ralf; Raiteri, Paolo; Rohl, Andrew L.; Gale, Julian D.; Fukuma, Takeshi; Kuehnle, Angelika
Contributor: University of Helsinki, INAR Physics
Date: 2018-03-13
Language: eng
Number of pages: 5
Belongs to series: Physical Review Letters
ISSN: 0031-9007
URI: http://hdl.handle.net/10138/308108
Abstract: It seems natural to assume that defects at mineral surfaces critically influence interfacial processes such as the dissolution and growth of minerals in water. The experimental verification of this claim, however, is challenging and requires real-space methods with utmost spatial resolution, such as atomic force microscopy (AFM). While defects at mineral-water interfaces have been resolved in 2D AFM images before, the perturbation of the surrounding hydration structure has not yet been analyzed experimentally. In this Letter, we demonstrate that point defects on the most stable and naturally abundant calcite (10.4) surface can be resolved using high-resolution 3D AFM-even within the fifth hydration layer. Our analysis of the hydration structure surrounding the point defect shows a perturbation of the hydration with a lateral extent of approximately one unit cell. These experimental results are corroborated by molecular dynamics simulations.
Subject: 114 Physical sciences
MOLECULAR-DYNAMICS
DEFLECTION SENSOR
SIMULATIONS
DISSOLUTION
RESOLUTION
WATER
FIELD
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
PhysRevLett.120.116101.pdf 5.837Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record