26–30 Aug 2019
Universität Zürich
Europe/Zurich timezone

【614】A comparative photoemission spectroscopy and scanning tunneling microscopy study of the topological material ZrTe5

27 Aug 2019, 17:45
15m
G 85

G 85

Talk MaNEP Session: Correlations and topology in quantum matter MaNEP: Correlations and topology in quantum matter

Speaker

Björn Salzmann (Universität Fribourg)

Description

The low-energy electronic structure and topological nature of ZrTe$_5$ has recently been under debate with several contradictory results published. It consists of nearly linearly dispersing bands at the Gamma point with potentially a small band gap, making ZrTe$_5$ very sensitive to structural defects. However, only minor attention has been given to the influence of the sample growth method on the crystal quality and its physical properties.
Here we present angle-resolved photoemission spectroscopy and scanning tunneling microscopy measurements performed on samples grown by the two different methods used for ZrTe$_5$ growth. We will focus on the presence of defects and discuss their influence on the low-energy electronic structure of ZrTe$_5$.

Authors

Björn Salzmann (Universität Fribourg) Maxime Rumo (University Fribourg) Dr Christopher William Nicholson (Université de Fribourg) Dr Thomas Jaouen (Université de Fribourg) Fabiano Vanini (Universität Freiburg) Prof. Ana Akrap (University of Fribourg) Prof. Phillipp Aebi (Université de Fribourg) Prof. Claude Monney (Université de Fribourg)

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