Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session P33: Spectroscopy and Oxides
2:30 PM–5:18 PM,
Wednesday, March 6, 2019
BCEC Room: 204B
Sponsoring Unit: FIAP
Chair: Harishankar Jayakumar, City College of New York
Abstract: P33.00011 : Hysteresis response of 2D electron nematics in the presence of material disorder*
4:30 PM–4:42 PM
Karin Andrea Dahmen
(University of Illinois at Urbana-Champaign)
Previously, we proposed new experimental tests  that can reveal the universality class, based on hysteresis: Upon cycling an applied orienting field, a clean 2D XY electron nematic will show no hysteresis, whereas a clean Ising nematic will show robust hysteresis.
However, no material system is defect-free, and no spontaneous symmetry breaking can occur in the 2D Ising model in the presence of random fields.. In this talk, we discuss the hysteresis characteristics of XY and Ising nematics in the presence of material disorder.
 S. Basak and E. W. Carlson, Phys. Rev. B 96, 081303(R) (2017).
*We acknowledge support from NSF Grant No.DMR-1508236 and Department of Education Grant No. P116F140459. This research is also supported by computation resources through XSEDE startup allocation (TG-DMR180098). SB will be supported through Bilsland Dissertation Fellowship in Spring 2019.
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