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Calendar of Physics Talks Vienna
| Correlation Effects on Topological Insulators |
| Speaker: | Norio Kawakami ( Kyoto University) |
| Abstract: | Topological insulators have attracted much attention as a new research
platform in condensed matter physics. We discuss the correlation effects
on topological insulators by applying dynamical mean field theory to a
generalized Bernevig-Hughes-Zhang model (i.e. a correlated two-band
model with spin-orbit interaction). We discuss (i) an interaction-driven
phase transition between the topological and Mott insulators, (ii) a
topologically non-trivial antiferromagnetic insulator and (iii) a new
exotic phase "spin-selective topological Kondo insulator", where a
topological Kondo insulator is embedded in a ferromagnetic metal. |
| Date: | Mon, 16.09.2013 |
| Time: | 15:00 |
| Duration: | 60 min |
| Location: | Freihaus HS 138C, TU Vienna |
| Contact: | held@ifp.tuwien.ac.at |
| Ferroelectricity in ferroelastic twin boundaries (& tweed) and their dynamics |
| Speaker: | Prof. Ekhard Salje (Cambridge University/U.K.) |
| Abstract: | A new approach to generate functional materials and to investigate the dynamics of jamming avalanches is to engineer functional interfaces. I will discuss the special case of functional twin boundaries which were superconducting in an insulating matrix or ferroelectric in a paraelectric bulk. Functionalities and their origins will be discussed. |
| Date: | Tue, 17.09.2013 |
| Time: | 16:00 |
| Location: | Technische Universität Wien, Institut für Angewandte Physik, Seminarraum 134A, Turm B (gelbe Leitfarbe), 5. OG, 1040 Wien, Wiedner Hauptstraße 8-10 |
| Contact: | Univ.Prof. Dr. Ulrike Diebold |
| From transition-metal to carbon-based superconductors --- a theoretical outlook |
| Speaker: | Prof. Hideo Aoki (University of Tokyo) |
| Date: | Thu, 19.09.2013 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | Freihaus HS 138C |
| Contact: | held@ifp.tuwien.ac.at |
| Search for Muon to Electron Conversion at J-PARC - COMET experiment |
| Speaker: | Yoshitaka KUNO (Osaka) |
| Abstract: | Muon to electron conversion in a muonic atom is a process of charged lepton flavor violation (CLFV). The COMET experiment aims to search for muon to electron conversion at J-PARC with single-event sensitivity of 3x10-17. which is about 10,000 improvement over the current limit. Recently the COMET experiment has taken a staged approach. COMET Phase-I. as the first phase, aims at a single-event sensitivity of 3x10-15 with a partial part of the full muon beam line and a Phase-I dedicated detector in the order of about 10^6 sec. The funds for COMET Phase-I has been approved as the supplemental budget, and the construction will start in 2013. The physics run is expected to start in 2016 or so. The COMET Phase-II will follow immediately. In this talk, I will describe physics motivation of CLFV, and the details of COMET Phase-I / Phase-II, with the present status of Phase-I. |
| Date: | Fri, 20.09.2013 |
| Time: | 17:00 |
| Duration: | 60 min |
| Location: | Seminar room, Boltzmanngasse 3, Room 2.08 |
| Contact: | Ken Suzuki |
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