Archive 2016

Here you can find past events of the MPSD institute and the MPSD research groups at the Universität Hamburg.

Host: James McIver / Andrea Cavalleri

Revealing Hidden Phases in Correlated Electron Systems using Nonlinear Optics

MPSD Seminar

Date: Jun 17, 2016
Time: 03:30 PM - 04:30 PM (Local Time Germany)
Speaker: David Hsieh
Institute for Quantum Information and Matter, California Institute of Technology
Location: CFEL (Bldg. 99)
Room: Seminar Room IV, O1.111
Host: James McIver / Andrea Cavalleri

The iridium oxide family of correlated electron systems is predicted to host a variety of exotic electronic phases owing to a unique interplay of strong electron-electron interactions and spin-orbit coupling. There is particular interest in the perovskite iridate Sr₂IrO₄ due to its striking structural and electronic similarities to the parent compound of high-Tc cuprates La₂CuO₄. Recent observations of Fermi arcs with a pseudogap behavior in doped Sr₂IrO₄ and the emergence of a d-wave gap at low temperatures further strengthen their phenomenological parallels. [more]

Optical tuning of electronic valleys

MPSD Seminar

Date: May 31, 2016
Time: 03:00 PM - 04:00 PM (Local Time Germany)
Speaker: Edbert Sie
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
Location: CFEL (Bldg. 99)
Room: Seminar Room IV, O1.111
Host: James McIver / Andrea Cavalleri

Monolayer transition-metal dichalcogenides such as MoS₂ and WS₂ are prime examples of atomically thin semiconducting crystals that exhibit remarkable electronic properties. They have a pair of valleys that can serve as a new degree of freedom, but these valleys are energetically degenerate, protected by time-reversal symmetry. [more]