Meeting SPM Users Virtually

May 16, 2020 by Romain Stomp

The 4th SPM User Meeting that was originally planned to occur in April in Lyon was rescheduled to 2021 due to the COVID-19 situation. We therefore found inventive ways to stay connected with our community, in a virtual manner, while leaving everyone safe at home.

This blog post summarizes the content of the 2 sessions, which can also be watched again at these links:

Experts' Talks

As during real events, we love to hear about some of the latest achievements from our customers, understand the challenges and see our instruments in real research context. This virtual edition featured invited talks from INSA Lyon and ST-Microelectronics/CEA Grenoble:

  • Prof. Brice Gautier: very pedagogical talk about ferroelectrics and the various PFM methods, including most of the common artifacts.
  • Valentin Aubriet: used the heterodyne KPFM method to measure Surface Photo-Voltage (SPV) as a function of time and illumination wavelength, even on buried interfaces.

These two 40' talks generated more than 30 questions overall!

Practical Tutorials

How to implement Dual Frequency Resonance Tracking (DFRT) method and make sure it's really optimized? or how does pump-probe Kelvin Probe Force Microscopy (KPFM) really works in practice? If you asked yourselves such questions or similar questions related to the theme of these 2 sessions, then the tutorial section is the right format. It explains how the methods work and how to implement it in a step-by-step approach.

In addition to the video recording that you can watch and pause at your pace, here are the presentation slides used to explain the context, the method and the procedure that was then followed during the live LabOne demonstration. Here is the presentation from Romain Stomp on DFRT methods.

And here is the presentation from Mehdi Alem on Electrical Pump-probe methods with an insert of the pulse delay modulation (click to see the animation):


The LabOne demonstration can easily be reproduced by our existing customers who are using either an HF2LI (for DFRT) or a UHFLI (for electrical pump-probe generation with AWG). The original setting files used during the webinars are available in the following download links:

Right-click on the links and choose 'save as...' to download the files; alternatively, you can open the links and copy their content in files renamed with the extension .xml (LabOne settings) or .seqc (AWG sequencer). These files can then easily be uploaded on the instrument by a simple drag&drop in the Configuration tab when LabOne is running. The test can be conducted by connecting the instrument Output to Input or connecting a real Resonator in case of DFRT.

Keeping In Touch

Nothing is like meeting you in person but these virtual sessions are the closest we could get, also considering the short notice. We are happy to build such lively community of Zurich Instruments users around SPM applications and hear about new instrumentation challenges. Thank you all for joining and see you next year in Lyon!