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SUMMARY:New insight into the fundamental physics of low-dimensional and se
 lf-assembled materials using electron microscopy
DTSTART:20130318T131500
DTSTAMP:20260428T021441Z
UID:40da63c4c01b71aa4bd86699d65839baa829e0053b180ea977aa8225
CATEGORIES:Conferences - Seminars
DESCRIPTION:Rafal Dunin-Borkowski\nResearch Center Jülich\, Germany\nTran
 smission electron microscopy has been revolutionised in recent years\, bot
 h by the introduction of new hardware such as field-emmission electron gun
 s\, aberration correctors\, monochromators\, imaging filters and in situ s
 tages and by the development of new techniques\, algorithms and software.
   Chromatic aberration correction\, in particular\, promises to provide i
 mproved spatial resolution and interpretability when compared with the use
  of spherical aberration correction alone\, especially at lower accelerati
 ng voltages.  It also promises to allow magnetic information about materi
 als to be recorded with a spatial resolution of better than 0.5 nm with th
 e conventional microscope objective lens switched off.  In this talk\, I 
 will present a selection of recent results obtained in both high-resolutio
 n and Lorentz modes from a recently installed Titan Ultimate field emissio
 n gun transmission electron microscope equipped with a combined spherical 
 and chromatic aberration corrector on the objective lens.  I will show ho
 w such studies can be used to obtain unique information about the fundamen
 tal physical properties of low-dimensional materials\, including graphene\
 , as well as to measure the local magnetic properties of self-assembled ma
 terials\, including arrays of closely-spaced sub-10nm ferromagnetic nanopa
 rticles.  I will conclude with a personal perspective on directions for t
 he future development of transmission electron microscopy.  Such developm
 ents may ultimately lead to approaches for characterising the positions\, 
 chemical identities and magnetic moments of individual atoms in three dime
 nsions.
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
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