The Instituto de Ciencia de Materiales de Madrid (ICMM) is an institute of the Consejo Superior de Investigaciones Cientificas (CSIC) (Spanish National Research Council) founded in December 1986, that belongs to the Area of Science and Technology of Materials, one of the eight Areas in which the CSIC divides its research activities.
Our mission is to create new fundamental and applied knowledge in materials of high technological impact, their processing and their transfer to the productive sectors at local, national and European scales (the true value of materials is in their use), the training of new professionals, and the dissemination of the scientific knowledge.
How to arrive
Topological π-junctions from crossed Andreev reflection in the Quantum Hall regime Francesca Finocchiaro read more
Exploiting polaritonic chemistry to manipulate molecular structure and dynamics Johannes Feist read more
Alta-Integración en la Red Eléctrica de las Energías Renovables Intermitentes (eólica, solar-FV y solar CSP) José Manuel Martínez-Duart read more
Identification of Single Adsorbed Cations on Mica–Liquid Interfaces by 3D Force Microscopy
Daniel Martin-Jimenez and Ricardo Garcia
Force microscope provides atomically resolved images of surfaces immersed in a liquid. The presence of different chemical species in the interface (cations, anions, water, neutral atoms) complicates the adscription of the observed features to a given species. We develop a 3D atomic force microscopy method to identify the cations adsorbed on a mica surface from a potassium chloride solution. The method is based on measuring the peak value of the attractive force within the Stern layer. The maximum of the attractive force shows site-specific variations. The positions with the highest attractive force values are associated with the presence of adsorbed potassium ions, while the other positions are associated with a local depletion of the hydration layer. This criterion provides a surface coverage of K cations that is consistent with the one reported by other techniques.