Magneto-optical spectroscopy of 3D Dirac semimetals

Datum

07.02.2019

Zeit

11:00 - 12:30

Sprecher

Prof. Dr. Ana Akrap

Zugehörigkeit

University of Fribourg, Switzerland

Serie

MPI-CPfS Festkörperphysikalisches Kolloquium

Sprache

en

Hauptthema

Materialien

Andere Themen

Materialien

Host

Prof. Dr. Andy Mackenzie

Beschreibung

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

Letztmalig verändert: 08.02.2019, 01:09:36