REMINDER: CME Seminar Announcement: Inna Vishik, today at 11:30

[Gardner, Joanna D.]

Good Morning,

The Condensed Matter Experiment Seminar Series is pleased to host Assistant Professor Inna Vishik<http://physics.ucdavis.edu/people/faculty/inna-vishik> from the University of California Davis today at 11:30am in 1080 Smith Seminar, PRB. Learn more about Dr. Vishik’s seminar topic "Ultrafast dynamics in the presence of antiferromagnetic correlations in electron-doped cuprates" below. Thank you and we look forward to seeing you soon!

Abstract
Electron-doped cuprates represent an interesting bridge system between hole-doped cuprate high-temperature superconductors and other unconventional superconductors such as iron-based and heavy fermion superconductors.  Like the latter systems, electron-doped cuprates feature close proximity between antiferromagnetism and superconductivity on the phase diagram, but they manifest this physics on the copper-oxygen planes which they share with the hole-doped cuprates.  One enduring question on the electron-doped side of the phase diagram, is the degree to which the regime of antiferromagnetism constitutes static order, and ultrafast spectroscopies, which can access picosecond and sub-picosecond timescales are natural tools to explore this issue.  To this end, we have used femtosecond optical pump-probe spectroscopy to study the dynamics of antiferromagnetic correlations via the photoinduced change in reflectivity of thin films of the electron-doped cuprate La2-xCexCuO4 (LCCO). I will show how we use these time-domain experiments to learn about coupling between electrons and high-energy (> 2ΔAF ) excitations in these compounds and set limits on the timescales on which antiferromagnetic correlations are static.


Sincerely,
Joanna

[The Ohio State University]
Joanna Gardner
Program Coordinator
College of Arts and Sciences Physics
2021 Physics Research Building, 191 W Woodruff Avenue, Columbus, OH 43210
614-292-3437 Office
gardner.306 at osu.edu<mailto:gardner.306 at osu.edu> osu.edu<http://osu.edu>


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