REMINDER: CME Seminar Announcement: Abhay Pasupathy, 3/2/17

[Gardner, Joanna D.]

Good Morning,

Please join us for a Condensed Matter Experiment  Seminar presented by Associate Professor Abhay Pasupathy<http://physics.columbia.edu/people/profile/428> from Columbia University today at 11:30am in 1080 Smith Seminar, PRB. Learn more about Dr. Pasupathy’s seminar topic "Materials under Strain: an Atomic-Scale Perspective" below. Thank you and we look forward to seeing you there!

Abstract
What is the effect of stretching a crystal along a given direction by a small amount? In general, one might not expect much: a change in lattice constant, accompanied by corresponding changes in the electronic and vibrational properties of a crystal. I will describe a few cases of materials where the effect of stretching (ie, uniaxial strain) lead to large and unexpected effects. These include the iron-based superconductors (where large electronic nematic effects are seen), layered transition-metal dichalcogenides (where we can observe the formation of strain solitons) and two-dimensional semiconductors (where we can cause large changes in band gap and even cause structural phase transitions). I will discuss these from an experimental perspective - in particular, I will describe new experimental techniques where we can apply calibrated uniaxial strain to crystals and measure their response with atomic-resolution scanning tunneling microscopy techniques.


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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