2026 CAP Congress / Congrès de l'ACP 2026

Session

DSS Poster Session | Session d'affiches DSS

T-POS-DSS

23 Jun 2026, 18:00

U. Ottawa - Learning Crossroads (CRX) Building

901. Calcium Pipe Diffusion Along Dislocations in MgO(100) Single Crystal

Ms Elnaz Familsatarian (Institut national de la recherche scientifique, centre Énergie, Matériaux, Télécommunications (INRS-EMT) 1650 blvd Lionel Boulet, J3X 1P7 Varennes, QC, Canada)

23/06/2026, 18:00

Surface Science / Science des surfaces (DSS)

Poster not-in-competition (Graduate Student) / Affiche non-compétitive (Étudiant(e) du 2e ou 3e cycle)

In surface science, MgO is attractive due to its highly stable, atomically flat (100) vicinal surface for epitaxial growth. Annealing is commonly used to form well-defined terraces on MgO single-crystal substrates. In MgO crystals, however, impurities can redistribute during thermal treatment; calcium is commonly reported as one of the most prevalent impurities in MgO single crystals and is...

786. Deterministic Placement of C2H Molecules on Si(100) Using Inverted-Mode STM

Jacqueline Kort-Mascort (CBN Nano Technologies Inc.)

23/06/2026, 18:00

Surface Science / Science des surfaces (DSS)

Poster (Non-Student) / Affiche (Non-étudiant(e))

Here, we present an atomically precise fabrication (APF) approach based on bottom-up, building of covalently bonded structures on surfaces through the addition, abstraction, and manipulation of individual atoms or small few-atom moieties/functional groups. Our approach to mechanosynthetic APF is enabled by Inverted-Mode Scanning Tunneling Microscopy (IM-STM), a technique that uses tailored 3D...

794. Force to Spin a Molecular Rotor

Henry Rodriguez (CBN Nano Technologies Inc.)

23/06/2026, 18:00

Surface Science / Science des surfaces (DSS)

Poster (Non-Student) / Affiche (Non-étudiant(e))

Frequency-modulated atomic force microscopy (fm-AFM) is well suited to probe forces between the tip and surface. Vertical forces can be inferred by sampling the frequency shifts while varying the tip-sample distance above a point on the sample. In our work, we explore a custom-synthesized molecule: tetrakis(iodomethyl)germane (Ge(CH2I)4; TIMe-Ge), which consistently presents a...

771. Individual silicon atom abstraction from Si(100) enabled by mechanosynthesis and inverted-mode scanning tunneling microscopy

Zehra Ahmed (CBN Nano Technologies Inc.)

23/06/2026, 18:00

Surface Science / Science des surfaces (DSS)

Poster (Non-Student) / Affiche (Non-étudiant(e))

Atomically precise manipulation of individual, covalently bonded atoms has been a difficult problem for both bottom-up and top-down approaches in nanotechnology. In this work, we employ our recently developed inverted-mode scanning tunneling microscopy (IM-STM) as a platform for atomically precise mechanosynthesis [1]. In our chosen application, individual Si atoms can be routinely abstracted...