Competing Orders in Low-dimensional Correlated Electron Systems: Cooper Pairing near Magnetic Instability,BCS-BEC Crossover and Topological Interfaces
| Date/Time: | Monday, 07 Mar 2016 from 1:10 pm to 2:00 pm |
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| Location: | Physics 0018/0019 |
| Phone: | 515-294-5441 |
| Channel: | College of Liberal Arts and Sciences |
| Actions: | Download iCal/vCal | Email Reminder |
Abstract: Behavior of the interacting systems changes dramatically when the number of particles becomes large. Entirely new phenomena and concepts arise for N->infinity limit which cannot be deconstructed down from the level of few particles and basic dynamical laws. The concepts are lying in the heart of strongly correlated electronic condensed matter. Furthermore, the quest for understanding how complex systems can exhibit self-organized behavior driven by emergent ordering principles lies at the heart of physics of strongly correlated quantum systems.
In my talk I will review several aspects of competing phases in unconventional superconductors and the physics of topological materials.
In particular, recent discovery of superconductivity in the iron-based layered pnictides with Tc ranging between 4 and 60K generated enormous interest in the physics of these materials. Here, I will review some of the peculiarities of the completion between magnetic, structure and superconducting transitions in these systems. For the part on topological materials I will present some recent development on the interplay of topology and magnetism in the FM/TI hetero-structures.
Bio: Ilya Eremin obtained his PhD (1999) degree from the Kazan State University, in Kazan, Russian Federation. He was a postdoctoral research associate (Alexander von Humboldt fellow) at the Freie Universitat Berlin (2001-2005), and a Junior-Professor at the Max-Planck Institut for Physik Komplexer Systeme in Dresden and Technische Universitat in Braunschweig. Since 2010 he has been an associate professor for solid state theory at the Department of Physics and Astronomy in Ruhr-Universitat Bochum. His research interests lie in the field of strongly correlated electron systems, unconventional superconductivity, quantum criticality, and topological insulators.