BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260309T222649Z
UID:https://www.fkf.mpg.de/events/41757/92103
DTSTART:20250509T090000Z
DTEND:20250509T100000Z
CLASS:PUBLIC
CREATED:20250505T090933Z
DESCRIPTION: Atomic-resolution transmission electron microscopy techniques 
 hold immense promise for advancing quantum materials research. However\, p
 rogress has been hindered by the lack of low- temperature capabilities\, a
  prerequisite for studying quantum systems. In this talk\, I will highligh
 t two efforts to enable novel cryogenic measurements including the use of 
 liquid helium. The first centers on the development of atomic-resolution c
 ryogenic scanning transmission electron microscopy at liquid nitrogen temp
 erature. This breakthrough development has enabled the imaging of electron
 ic phase transitions and their evolution with picometer precision. I will 
 discuss recent results on charge order transitions and glassy polar order 
 in oxides. Second\, I will describe the approach undertaken by our lab in 
 the design and construction of stable liquid helium stages. Liquid helium 
 cooling in the TEM has long posed a formidable challenge\, but\, if realiz
 ed\, is poised to open new lines of inquiry into a variety of new material
 s and systems. We show that our liquid helium flow designs provide access 
 to temperatures below 30 K while maintaining atomic resolution performance
  with sub-Angstrom information transfer. The instrument further enables ex
 tended operation durations over 12 hours\, low drift (better than 0.4 Å/
 s)\, and temperature stability in the millikelvin range at base and interm
 ediate temperatures. Other hardware advances will be discussed\, including
  in situ capabilities. These advances pave the way for novel explorations 
 of ultra-low temperature phenomena in quantum electronic materials.\nVortr
 agende(r): Ismail El Baggari
LAST-MODIFIED:20250505T091336Z
LOCATION:Max Planck Institute for Solid State Research\, Raum: 4D2
ORGANIZER;CN=Stuttgarter Zentrum für Elektronenmikroskopie :mailto:
SUMMARY: Cryogenic electron microscopy for correlated electronic materials
URL;VALUE=URI:https://www.fkf.mpg.de/events/41757/92103
END:VEVENT
END:VCALENDAR