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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260306T210412Z
UID:https://www.fkf.mpg.de/events/42863/92103
DTSTART:20250912T073000Z
DTEND:20250912T083000Z
CLASS:PUBLIC
CREATED:20250902T063044Z
DESCRIPTION: Visualizing individual atoms\, particularly light elements lik
 e oxygen and hydrogen\, has long been a challenge in electron microscopy d
 ue to issues like multiple scattering and beam damage. In this talk\, I wi
 ll introduce multislice electron ptychography (MEP)\, a breakthrough techn
 ique that enables the record-breaking-resolution reconstruction of 3D atom
 ic structures with exceptional dose efficiency\, even in relatively thick 
 samples. I will begin by introducing MEP and its practical implementation.
  I will then present two groundbreaking applications that highlight MEP’
 s potential. First\, we use MEP to map critical oxygen point defects–vac
 ancies and interstitials–in Ruddlesden-Popper nickelate superconductors\
 , uncovering a direct correlation between local oxygen ordering and the ch
 arge carrier density that governs superconductivity. Next\, I will demonst
 rate how MEP enables visualization and quantification of hydrogen atoms in
  metal hydrides\, offering new insights into hydrogen storage and its dyna
 mics. Finally\, I will discuss the perspective of MEP\, focusing on its ex
 citing potential for studying hidden orders and in situ dynamic processes 
 in functional materials.\nVortragende(r): Prof. Zhen Chen
LAST-MODIFIED:20250902T063429Z
LOCATION:Max Planck Institute for Solid State Research\, Raum: 7D2
ORGANIZER;CN=Stuttgarter Zentrum für Elektronenmikroskopie :mailto:
SUMMARY:Revolutionizing atomic imaging with multislice electron ptychograph
 y
URL;VALUE=URI:https://www.fkf.mpg.de/events/42863/92103
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