VII ALBA Users' Meeting

Session

Electronic & Magnetic Structure of Matter

4 Sept 2026, 11:00

ALBA Synchrotron

18. Invited Speaker

Felix Buettner (Helmholtz-Zentrum Berlin & University of Augsburg)

04/09/2026, 11:00

Oral contribution

86. Local structure, electronic inhomogeneity and charge density wave fluctuations in KV3Sb5 kagome superconductor

Giovanni Tomassucci (Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Roma, Italy)

04/09/2026, 11:30

Oral contribution

Kagome superconductors provide an ideal platform for investigating the interplay between non-trivial band topology, electronic correlations, lattice instabilities, and unconventional superconductivity [1,2]. Among them KV$_3$Sb$_5$ has attracted considerable interest owing to the coexistence of superconductivity and charge density wave (CDW) order [1-4], offering a unique opportunity to...

100. Virtual-Electrode LEEM for in-situ studies of Li and Na anode formation

Natalia Kwiatek-Maroszek

04/09/2026, 11:50

Oral contribution

Reversible anode-free solid-state batteries require precise control of alkali-metal nucleation, growth, and dissolution at buried solid-electrolyte/current-collector interfaces, yet these processes remain challenging to probe operando. Here, we introduce virtual-electrode low-energy electron microscopy (VE-LEEM), complemented by PEEM and AFM, for direct nanoscale visualization of anode...

57. Timing-dependent in vivo cobalt doping of magnetosome chains

Marco Vardanega (Universidad de Oviedo)

04/09/2026, 12:10

Oral contribution

Magnetotactic bacteria are microorganisms capable of aligning with and navigating along geomagnetic field lines thanks to the presence of one or more chains of magnetic nanoparticles synthesized within their cells. These chains behave as intracellular compass needles under an external magnetic field. The biomineralized nanoparticles, known as magnetosomes, have attracted considerable attention...

56. Microscopic Insights into Magnetic Warping and Time-Reversal Symmetry Breaking in Topological Surface States of Rare-Earth-Doped Bi2Te3

Miguel Angel Valbuena (IMDEA Nanociencia)

04/09/2026, 12:30

Oral contribution

Rare-earth magnetic adatoms offer a promising pathway to manipulate the electronic and magnetic properties of topological insulators by locally breaking time-reversal symmetry [1]. In this work, we investigate the interaction of submonolayer erbium (Er) on the surface of Bi₂Te₃ through a comprehensive experimental approach combining synchrotron-based spectroscopy with local probe microscopy...

90. Assessment of thin film superconductivity with atomic-resolution TEM imaging and analysis in advanced and innovative materials or heterostructures

Gemma Rius (IMB-CNM-CSIC)

04/09/2026, 12:50

Oral contribution

The development of superconducting thin films for quantum technologies, cryogenic electronics, and energy-efficient devices requires precise control of atomic-scale structure, chemistry, and interfaces. This contribution demonstrates how advanced transmission electron microscopy (TEM) techniques provide a comprehensive framework for assessing the structural characteristics that govern...