Conveners
W3-6 Surface Science (DSS) | Science des surfaces (DSS)
- Steve Patitsas (University of Lethbridge)
One of the many challenges for nanoscale engineering is to purposely direct the self-assembly of nano-materials into desired patterns. Easy deposition methods (such as drop-casting) are preferable over ones that require high-vacuum (such as thermal deposition), as the latter has a high cost and requires long processing time; both of which renders the method infeasible for mass production. ...
The addition of a qPlus sensor to a tunneling microscope (STM) allows measurement modalities from the world of force microscopy, such as non-contact atomic force (NC-AFM) and Kelvin probe force microscopy (KPFM), to be performed ‘alongside’ STM and STM spectroscopy with a metal tip or a metal tip functionalized with a well defined probe species such as CO or Xe. This approach is illustrated...
The development of organic analogues of graphene, the only known 2-d conjugated polymer, would represent a new class of materials [1]. One approach to the formation of covalent organic frameworks (COF) is the adsorption of halogenated aromatic precursors onto atomically ordered surfaces, followed by de-halogenation, and subsequent covalent coupling. Although examples of COF formation on...
Antiferromagnetic coupling (AFC) has plays an important role in many magnetic thin film structures used in applications such as sensors, hard drives, and solid state memories. AFC is achieved in FM/NM/FM structures where two ferromagnetic layers (FM) are separated by a non magnetic (NM) spacer layer. Coupling of FM films across NM is RKKY like and oscillates between antiferromagnetic and...
Spin transfer torque is mostly studied in nanopillars that consist of two ferromagnetic (FM) layers (reference and free, respectively), separated by a thin non-magnetic spacer. Spin polarized current is used to switch the magnetization of the free FM layer. The main challenge for implementing the spin transfer torque-random access memory (STT-RAM) devices is the reduction of the critical...
