Magneto-optical spectroscopy of 3D Dirac semimetals

Date

Feb 7, 2019

Time

11:00 AM - 12:30 PM

Speaker

Prof. Dr. Ana Akrap

Affiliation

University of Fribourg, Switzerland

Series

MPI-CPfS Festkörperphysikalisches Kolloquium

Language

en

Main Topic

Materialien

Other Topics

Materialien

Host

Prof. Dr. Andy Mackenzie

Description

A little over ten years ago, relativistic-like particles made a grand entrance into the condensed matter physics arena, when they were observed in topological insulators. Soon thereafter, it became clear that topological states of matter were surprisingly widespread. This talk will focus on two examples of 3D systems whose energy dispersion is linear in momentum: cadmium arsenide (Cd3As2), and zirconium pentatelluride (ZrTe5). Magneto-optical spectroscopy allows us to uncover the Landau levels and helps decipher the band structure. Our main task is to understand the low energy behavior of systems with small carrier densities, small effective masses, and small or vanishing band gaps, whose properties are in some conditions predicted to be topologically nontrivial.

Links

• MPI CPfS

Last modified: Feb 8, 2019, 1:09:36 AM