Physics Seminar-“Quantum criticality, nematicity, and field-induced superconductivity in iron-based superconductors” with Dr. Shua Sanchez
Physics Seminar
February 15, 2024
11:00 AM - 12:00 PM
Location
SES 2214
Calendar
Download iCal FileAbstract:
Strongly interacting electrons give rise to fascinating and useful phenomena, such as magnetism and superconductivity. However, the intertwined charge, spin, and lattice degrees of freedom obscure the driving mechanism of these symmetry-breaking phases. In this talk, I will introduce a new experimental platform which combines tunable applied strain, magnetic field, transport measurements, and x-ray techniques to probe the origin of ordered phases in strongly correlated materials. I will discuss three recent studies in iron-based superconductors, which examine (1) nematicity and quantum criticality in doped BaFe2As2, (2) orbital polarization-driven nematicity in FeSe, and (3) field-induced superconductivity in doped EuFe2As2. These diverse investigations demonstrate the power and promise of multimodal characterization for solving other puzzles in strongly correlated materials.
References:
(1) Sanchez, et al. Nature Materials 20, 1519–1524 (2021)
(2) Occhialini and Sanchez, et al., Nature Materials 22, 985–991 (2023)
(3) Sanchez, et al. Science Advances 9, eadj5200 (2023)
Date posted
Jan 29, 2024
Date updated
Feb 12, 2024