Polarization-dependent photoemission electron microscopy (PD-PEEM) exploits spatial variation in the optical selection rules of materials to image domain formation and material organization on the nanoscale. In this Perspective, we discuss the mechanism of PD-PEEM that results in the observed image contrast in experiments and provide examples of a wide range of material domain structures that PD-PEEM has been able to elucidate, including molecular and polymer domains, local electronic structure and defect symmetry, (anti)ferroelectricity, and ferromagnetism. In the end, we discuss challenges and new directions that are possible with this tool for probing domain structure in materials, including investigating the formation of transient ordered states, multiferroics, and the influence of molecular and polymer order and disorder on excited state dynamics and charge transport.
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14 September 2024
Perspective|
September 16 2024
Polarization-dependent photoemission electron microscopy for domain imaging of inorganic and molecular materials
Atreyie Ghosh
;
Atreyie Ghosh
(Data curation, Writing – original draft, Writing – review & editing)
1
James Franck Institute, The University of Chicago
, Chicago, Illinois 60637, USA
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Joseph L. Spellberg
;
Joseph L. Spellberg
(Data curation, Writing – original draft, Writing – review & editing)
1
James Franck Institute, The University of Chicago
, Chicago, Illinois 60637, USA
2
Department of Chemistry, The University of Chicago
, Chicago, Illinois 60637, USA
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Sarah B. King
Sarah B. King
a)
(Conceptualization, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing)
1
James Franck Institute, The University of Chicago
, Chicago, Illinois 60637, USA
2
Department of Chemistry, The University of Chicago
, Chicago, Illinois 60637, USA
a)Author to whom correspondence should be addressed: sbking@uchicago.edu
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a)Author to whom correspondence should be addressed: sbking@uchicago.edu
J. Chem. Phys. 161, 110901 (2024)
Article history
Received:
June 26 2024
Accepted:
August 11 2024
Citation
Atreyie Ghosh, Joseph L. Spellberg, Sarah B. King; Polarization-dependent photoemission electron microscopy for domain imaging of inorganic and molecular materials. J. Chem. Phys. 14 September 2024; 161 (11): 110901. https://doi.org/10.1063/5.0225765
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