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SUMMARY:Examples on the happy marriage between low-voltage TEM and low-dim
 ensional materials
DTSTART:20230207T093000
DTEND:20230207T103000
DTSTAMP:20260510T045152Z
UID:84303693af84e5796bdd3c10e418e01ff841170580e808954bef2c40
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dr. Ute Kaiser\, Central Facility Materials Science Elec
 tron Microscopy\, Ulm University\, Germany\n“The world is made of atoms
 ”\, we know since Demokrit but we just learnt from the Nobel Laudate Gei
 m and Novoselev in 2010 that atom’s regular arrangement in 2 dimensions 
 is stable forming materials with extraordinary properties. Here we start t
 o fulfill the request by Goethe to “perceive whatever holds the world to
 gether in its inmost folds”\, as hardware aberration correction is now a
 vailable even for lower voltage transmission electron microscopy. We begin
  to “see those little atoms that move around in perpetual motion distant
 ly”\, Feynman dreamed\, about back in 1956.\nIn fact\, in situ transmiss
 ion electron microscopy nowadays can provide experimental data on the leve
 l of a single atom\, as it has seen extremely rapid developments in recent
  years owing to ground-breaking advances in electron optics\, electron det
 ectors\, sample preparation\, sample manipulation\, data analysis\, and qu
 antum-mechanical calculations of material’s properties. In this talk we 
 will focus on our own development performed within the frame of the SALVE 
 (Sub-Angstrom Low-Voltage Electron microscopy) project and present recent 
 results using the chromatic and spherical aberration-corrected SALVE instr
 ument to study and manipulate 2D inorganic (and 2D organic) materials. We 
 will understand that low-voltage TEM and low-dimensional materials are jus
 t made for each other enabling for the first time that the material's prop
 erties can be manipulated and exactly determined on the level of single mi
 ssing atoms.
LOCATION:BC 420 https://plan.epfl.ch/?room==BC%20420
STATUS:CONFIRMED
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