BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:A Glimpse into Electron Microscopy in the Quantum Information Era
DTSTART:20191108T151500
DTSTAMP:20260407T131537Z
UID:f7e7a166b9d5aced49495ff6cf4aa8c8f97037abffc1297727c0f8bd
CATEGORIES:Conferences - Seminars
DESCRIPTION:Juan Carlos Idrobo Center for Nanophase Materials Sciences\, O
 ak Ridge National Laboratory\, USA\nScanning and transmission electron mic
 roscopes (S/TEM) are now ubiquitous in materials and biological sciences l
 aboratories.  They have radically enhanced our understanding of organic a
 nd inorganic matter with the successful development of aberration correcto
 rs [1\,2]\, detectors with film-equivalent dynamical range [3]\, and more 
 recently\, with monochromators capable of achieving sub-10 meV energy reso
 lution spectroscopy [4]. \nHere\, I will present several examples demonst
 rating how we have exploited these capabilities and solved the pertinent e
 xperimental challenges to probe materials behavior at the nanometer and at
 omic scales.  Specifically\, I will show how by utilizing the phase of th
 e electron probe one can reveal the anti-ferromagnetic order of complex-ox
 ide materials [5]\, and explore the ferromagnetic strength at the interfac
 es of thin-film complex-oxide heterostructures [6] at the atomic level.  
 I will also explain how the new generation of monochromators\, combined wi
 th aberration-corrected STEM\, can be used (i) as a primary thermometer (w
 ithout requiring any previous knowledge of the sample) [7]\; (ii) to study
  minute volumes of liquid water [8]\; (iii) to detect site-specific isotop
 ic labels in amino acids at the nanometer scale [9].  Additionally\, I wi
 ll show how one can detect the electric field of individual atomic columns
  of heavy and light elements\, at the sub-Angstrom scale\, by using an ult
 ra-low noise SCMOS detector in the diffraction plane [10]\, and how one ca
 n detect anti-Fano resonances in plasmonic nanostructures [11].\nLastly\, 
 I will discuss potentially relevant new challenges that electron microscop
 y will need to resolve as it enters the forthcoming quantum information er
 a.  Would it be possible to map orbitals and spins with atomic resolution
  and with single atom sensitivity? Could we detect a superconducting trans
 ition? Could we spectroscopically measure cryogenic temperatures with sub 
 Kelvin precision?  Could we measure the specific heat and thermal conduct
 ivity of materials? Could we detect minute concentrations of isotopic elem
 ents and perform radiocarbon dating at the nanoscale?  These questions wi
 ll be addressed and further elaborated during the presentation [12].\nRefe
 rences:\n[1] J. Zach and M. Haider\, Optik 99 (1995)\, p. 112.\n[2] O. L. 
 Krivanek\, et al\, Institute of Physics Conference Series 153 (1997)\, p. 
 35.\n[3] A. R. Faruqi\, R. Henderson\, Curr. Opin. Struc. Biol. 17 (2007)\
 , p. 549.\n[4] O. L. Krivanek\, et al.\, Phil. Trans. R. Soc. A 367 (2009)
 \, p. 3683.\n[5] J. C. Idrobo\, et al.\, Adv. Struc. Chem. Img. 2 (2016)\,
  p. 5.\n[6] J. C. Idrobo\, et al.\, unpublished (2019).\n[7] J. C. Idrobo\
 , et al.\, Phys. Rev. Lett. 120 (2016)\, p. 095901.\n[8] J. R. Jokisaari\,
  et al.\, Adv. Mater. 30 (2018)\, p. 1802702.\n[9] J. A. Hachtel\, et al.\
 , Science 363 (2019)\, p. 525.\n[10] J. A. Hachtel\, et al.\, Adv. Struc. 
 Chem. Img 4 (2018)\, p. 10.\n[11] K. Smith\, et al.\, unpublished (2019).\
 n[12] This research was supported by the Center for Nanophase Materials Sc
 iences\, which is a Department of Energy Office of Science User Facility\,
  and instrumentation within ORNL's Materials Characterization Core provide
 d by UT-Battelle\, LLC under Contract No. DE-AC05-00OR22725 with the U.S. 
 Department of Energy.
LOCATION:CE 1 5 https://plan.epfl.ch/?room==CE%201%205
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR