Speaker:
Pavel Jelinek
Institution:
Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
Speaker Link:
Date:
Friday, August 23, 2019
Time:
11:00 am
Location:
RH 142
*Note Special Day / Time / Location
Abstract:
Low dimensional materials offer very interesting material and physical properties due to reduced dimensionality. At present, 2D materials are the focus of attention. However, 1D systems often show far more exotic behavior, such as Tomanaga-Luttinger liquid, Peierls distortion, etc.. In this talk, we will present different classes of 1D molecular chains formed on metallic surfaces by on-surface synthesis, which physical properties were investigated by low temperature UHV scanning probe microscopy supported by theoretical simulations. First, we will discuss topological phase transition of p-conjugation polymers [1] and its direct correlation to their p-conjugation. We will also demonstrate interesting mechanical and electronic properties of hydrogen bonded chains on surfaces driven by concerted proton transfer.
[1] A. Grande-Sanchez et al. Angew. Chem. Int. Ed.131, 6631-6635 (2019)
Host:
Wilson Ho