Event Info

Due to the recent events and the international mobility regulations on this 2020, the LEEM PEEM 12 committee have decided to postpone the Congress, and so guarantee, as is tradition, the participation of people from all around the globe. The new date is september 27 2021.

However, we will keep on the original dates, from September 28 to October 01 2020, 4 days of online dynamics with tutorials and 5 minute video presentations of posters by young researchers. A maximum of 20 slots will be reserved for the poster presentations. The slots are reserved for PhD students and researchers that have obtained their PhDs no longer than 3 years ago.

Find the information in the «Online Event» tab, we will keep publishing information soon. Abstracts submission deadline is July 15. Registration is open and FREE.

We wish you well and hope to see you soon!

Online Programme//

MONDAY, September 28 | 15:00 - 16:00 (GMT+2) Tutorial 1


Data analysis in LEEM and PEEM

MSc Tobias A. de Jong and MSc Pascal Dreher Leiden University (Netherlands) and University of Duisburg-Essen (Germany)



LEEM and PEEM experiments have advanced beyond pure imaging. This results in increasingly large and complex datasets, which require advanced data analysis before they can answer specific scientific questions.

In this tutorial, we will give several examples of modern image processing and analysis techniques for data and metadata generated in modern LEEM and PEEM experiments. Often the data analysis can be separated into a pipeline of multiple separate processing steps and we will identify the most common processing steps relevant to LEEM and PEEM. We will address basic techniques to process images, such as detector correction to convert raw detector counts to physically meaningful intensities, and image registration techniques to correct for sample drifts.

Next, we will discuss the analysis of two more complex, multi-dimensional datasets, the application of principal component analysis to (I(V)-LEEM) spectroscopy and the analysis needed to perform ultrafast vector microscopy in PEEM.

For participants who wish to have a look at some references and code beforehand:

– de Jong, Tobias A., et al. «Quantitative analysis of spectroscopic Low Energy Electron Microscopy data: High-dynamic range imaging, drift correction and cluster analysis.» Ultramicroscopy 213 (2020): 112913.


– Quantitative Data Analysis for spectroscopic LEEM, https://github.com/TAdeJong/LEEM-analysis

– Davis, Timothy J., et al. «Ultrafast vector imaging of plasmonic skyrmion dynamics with deep subwavelength resolution.» Science 368.6489 (2020). https://science.sciencemag.org/content/368/6489/eaba6415.abstract

TUESDAY, September 29 | 15:00 - 16:00 (GMT+2) Tutorial 2


Synchrotron-Based Cathode Lens Microscopy

Dr. Onur T. Mentes Elettra-Sincrotrone Trieste (Italy)



In this online tutorial session, we will discuss the capabilities of the LEEM/PEEM instrument as a synchrotron-based spectromicroscopy facility.

The high-brilliance synchrotron sources with tunable photon energy and polarization provide the possibility to obtain chemical, electronic and magnetic information in a laterally-resolved manner. In the first part of the talk, an overview of x-ray interactions with matter will be given, focusing on x-ray photoemission and x-ray absorption spectroscopies. The second part will demonstrate how these x-ray spectroscopies are implemented in a LEEM/PEEM instrument, illustrating the ideas by using selected works as examples. The session will be concluded on a more practical note by providing tips & tricks as well as some pitfalls that can be encountered using this powerful instrument. The participants who are working in the field and who already have specific questions in mind are encouraged to contact the speaker (tevfik.mentes@elettra.eu) a few days in advance. He will try to mention some of the questions during the talk, and also he will do his best to give his opinion on all other questions via email.

WEDNESDAY, September 30 | 15:00 - 16:00 (GMT+2) Tutorial 3


Spin-polarized LEEM

Dr. Gong Cheng – UC Davis (USA)



Spin-polarized LEEM offers exciting capabilities to explore spin-related properties in low-dimensional systems. In the talk I will briefly introduce how Spin-polarized LEEM works, then discuss some Spin-polarized LEEM results that highlight its advantages in different modes, including: imaging of three-dimensional spin textures in 0d, 1d and 2d systems, resolving spin-dependent electronic structures, etc.

THURSDAY, October 01 | 15:00 - 16:00 (GMT+2) Posters Session

List of Posters

2D Tobias de Jong Universiteit Leiden LEEM imaging of the moiré pattern of twisted bilayer graphene Open Abstract
Ka Man Yu University of Kaiserslautern LEEM/PEEM investigation of ambient oxidized Graphene/Ge(110) Open Abstract
Kenta Hagiwara Forschungszentrum Jülich Spin and orbital texture of the Weyl semimetal MoTe2 studied by spin-resolved momentum microscopy Open Abstract
Xin Liang Tan Forschungszentrum Jülich GmbH Fermi Surface Tomography of Palladium via Momentum Microscopy Open Abstract
Caixia Meng Dalian Institute of Chemical Physics Visualizing formation of tungsten carbide model catalyst and its interaction with oxygen Open Abstract
BIO Benjamin David Harding University of Wisconsin Presence of amorphous calcium carbonate in coral skeletons and tissue Open Abstract
Arash Tebyani Leiden University Damage to crystalline molecular layers caused by low energy electrons Open Abstract
Anna Volokitina Johannes Kepler University PEEM transients during growth of organic thin films Open Abstract
INS Engster Katharina University of Rostock, Institute of Physics Surface Photovoltage in the Vicinity of Individual Plasmon Excited Nanoparticles Open Abstract
David Janoschka University of Duisburg-Essen Vector Microscopy – A 4D Reconstruction of Electrical Fields on a Flat Gold Surface Open Abstract
Peter S. Neu Leiden University eV-TEM: Transmission Electron Microscopy at LEEM Energies Open Abstract
Theodore Stenmark Portland State University Strong coupling in metallic nanoparticle dimers studied in aberration-corrected electron microscopy Open Abstract
Michael Heber DESY Photon Science 3-in-1 Combined time-resolved photoelectron spectroscopy using a time-of-flight momentum microscope at the free-electron laser FLASH Open Abstract
Andrew Kim University of California Davis Fast Diffusive Behavior of Pb on Ge(111) at Low Temperatures During Island Formation Open Abstract
MAG Anna Mandziak SOLARIS synchrotron Manipulation of magnetic domains in thin magnetite films Open Abstract
Lei Yu Chongqing University Direct observation of meta-stable magnetization states in Fe/W(110) nanostructures Open Abstract
Sonka Reimers The University of Nottingham Equilibrium configuration and defect-driven dynamics of the antiferromagnetic domain structure in CuMnAs films Open Abstract
Claudia Fernández González IMDEA Nanociencia Domain Wall dynamics in permalloy nanowires with ferromagnetic chemical barriers Open Abstract
Sandra Ruiz Gómez ALBA synchrotron 3D magnetometry using XMCD-PEEM microscopy Open Abstract
Masahiko Suzuki National Institute for Materials Science Thickness dependence of magnetic domain structure of Fe/NiO polycrystalline bilayers studied with SPLEEM Open Abstract
Guiomar Delgado Soria Instituto Química Física Rocasolano Changes in the magnetic domains of hard and soft magnetic materials in a bilayer setup Open Abstract
OXIDES Grégoire Magagnin CEA Surface band gap narrowing in ferroelastic domain walls Open Abstract
Simon Fischer University of Bremen Strongly strained VO2 thin film growth Open Abstract
Natalia Alyabyeva CEA-Saclay Ferroelectric domain stability in La-doped Hf0.5Zr0.5O2 thin films Open Abstract
Elena Salagre Rubio Universidad Autónoma de Madrid Surface islands in epitaxial LixCoO2 films studied by LEEM/PEEM for different lithium concentrations Open Abstract

Abstract Submission//

Abstract Submission Deadline is July 15 2020. (CLOSED)

An abstract is required for consideration for the presentation.

Abstract should be submitted in the form of electronic file in WORD format.
Abstracts are limited to one A4 page, including figures.

The following template represent the style requirements for the abstract:

Submit you camera-ready file through the next form:

Important Dates//

Registration Opens: CLOSED
Call for Abstracts: CLOSED
Deadline for Abstract Submission: July 15
Notification of Acceptance: To be confirmed
Registration Deadline: September 09
2020 Online Event: September 28 – October 01